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IOS XR eXR - Viewing Install Repository LXCs LVMs Partitions and Disks

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This guide will explain how to check where a particular directory resides within the filesystem in terms of physical disk, logical volume, volume group, etc by taking a look at where the install repository actually resides on an NCS5500.

 

 

So where does the install repository live?

Under /opt/cisco/XR/packages

 

RP/0/RP0/CPU0:NCS-5502-B#run
Thu Jan 31 18:44:03.342 UTC
 
[xr-vm_node0_RP0_CPU0:~]$ls /opt/cisco/XR/packages/
ncs5500-bgp-1.1.0.0-r6131            ncs5500-infra-4.1.0.0-r6131         ncs5500-mpls-te-rsvp-2.3.0.0-r6131
ncs5500-cai-1.1.0.0-r6131            ncs5500-iosxr-fwding-5.1.0.0-r6131  ncs5500-ncs-base-2.0.0.0-r6131
ncs5500-ce-2.0.0.0-r6131             ncs5500-isis-1.1.0.0-r6131          ncs5500-os-5.0.0.0-r6131
ncs5500-common-pd-fib-1.1.0.0-r6131  ncs5500-k9sec-2.3.0.0-r6131         ncs5500-os-support-5.0.0.0-r6131
ncs5500-dpa-4.0.0.0-r6131            ncs5500-mcast-2.1.0.0-r6131         ncs5500-ospf-1.1.0.0-r6131
ncs5500-dpa-fwding-4.1.0.0-r6131     ncs5500-mgbl-3.0.0.0-r6131          ncs5500-parser-2.0.0.0-r6131
ncs5500-fwding-3.0.0.0-r6131         ncs5500-mpls-2.1.0.0-r6131          ncs5500-routing-3.1.0.0-r6131
[xr-vm_node0_RP0_CPU0:~]$

 

But where is that mounted?

Under rootfs, note that it is not under mount, but is under /etc/fstab

[xr-vm_node0_RP0_CPU0:~]$mount
devpts on /dev/pts type devpts (rw,nosuid,relatime,gid=5,mode=620,ptmxmode=666)
devfs on /dev type tmpfs (rw,nosuid,relatime,size=1024k,mode=755)
/dev/dm-12 on / type ext4 (rw,relatime,data=ordered)
proc on /proc type proc (rw,relatime)
proc on /proc/sys type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
libvirt on /proc/meminfo type fuse (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
libvirt on /proc/uptime type fuse (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other)
tmpfs on /dev/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,size=64k,mode=755)
cgroup on /dev/cgroup/cpu type cgroup (rw,relatime,cpu)
cgroup on /dev/cgroup/cpuacct type cgroup (rw,relatime,cpuacct)
cgroup on /dev/cgroup/cpuset type cgroup (rw,relatime,cpuset)
cgroup on /dev/cgroup/memory type cgroup (rw,relatime,memory)
cgroup on /dev/cgroup/devices type cgroup (rw,relatime,devices)
cgroup on /dev/cgroup/freezer type cgroup (rw,relatime,freezer)
devpts on /dev/ptmx type devpts (rw,nosuid,relatime,gid=5,mode=620,ptmxmode=666)
/proc on /mnt/bindmnt_netns/global-vrf type proc (rw,relatime)
/dev/mapper/app_vol_grp-app_lv0 on /misc/app_host type ext4 (rw,relatime,data=ordered)
/dev/mapper/panini_vol_grp-host_lv85 on /dev/sde type ext4 (rw,relatime,discard,data=ordered)
tmpfs on /var/volatile type tmpfs (rw,relatime)
tmpfs on /run type tmpfs (rw,relatime)
tmpfs on /media/ram type tmpfs (rw,relatime)
none on /dev/shm type tmpfs (rw,relatime)
none on /dev/shm type tmpfs (rw,relatime)
/dev/dm-12 on /proc/cmdline type ext4 (rw,relatime,data=ordered)
/dev/mapper/pci_disk1-ssd_disk1_xr_1 on /misc/disk1 type ext4 (rw,relatime,discard,data=ordered)
/proc on /run/netns/global-vrf type proc (rw,relatime)
/dev/vdb on /var/log type ext4 (rw,relatime,discard,data=ordered)
/dev/vdb on /misc/config type ext4 (rw,relatime,discard,data=ordered)
/dev/vdb on /misc/scratch type ext4 (rw,relatime,discard,data=ordered)
none on /mnt type tmpfs (rw,relatime,size=512k)
none on /dev/mq type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
qsm on /qsm type fuse.qsm (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
syslog_dev on /dev/syslog type fuse.syslog_dev (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
rdsfs_svr on /mnt/fuse/rdsfs type fuse.rdsfs_svr (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
parser_server on /mnt/fuse/parser_server type fuse.parser_server (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
nvgen_server on /mnt/fuse/nvgen_server type fuse.nvgen_server (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
ether on /mnt/fuse/ether type fuse.ether (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
ftp_fs on /mnt/fuse/ftp type fuse.ftp_fs (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
clns on /mnt/fuse/clns type fuse.clns (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
l2snoop on /mnt/fuse/l2snoop type fuse.l2snoop (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
tcp on /mnt/fuse/tcp type fuse.tcp (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
udp on /mnt/fuse/udp type fuse.udp (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
tftp_fs on /mnt/fuse/tftp type fuse.tftp_fs (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
raw_ip on /mnt/fuse/raw_ip type fuse.raw_ip (rw,nosuid,nodev,relatime,user_id=0,group_id=0)


[xr-vm_node0_RP0_CPU0:~]$cat /etc/fstab
# stock fstab - you probably want to override this with a machine specific one

rootfs               /                    auto       defaults              1  1
proc                 /proc                proc       defaults              0  0
#none                 /dev/pts             devpts     newinstance,ptmxmode=620,mode=0620,gid=5       0  0
usbdevfs             /proc/bus/usb        usbdevfs   noauto                0  0
tmpfs                /var/volatile        tmpfs      defaults              0  0
tmpfs                /media/ram           tmpfs      defaults              0  0
none                 /dev/shm             tmpfs      defaults              0  0


# uncomment this if your device has a SD/MMC/Transflash slot
#/dev/mmcblk0p1       /media/card          auto       defaults,sync,noauto  0  0

[xr-vm_node0_RP0_CPU0:~]$

 

 

Great so we found the mountpoint but where on the disk does rootfs come from?

 

[xr-vm_node0_RP0_CPU0:~]$df
Filesystem                           1K-blocks    Used Available Use% Mounted on
/dev/loop5                             4052796 1413548   2413664  37% /
devfs                                     1024      40       984   4% /dev
tmpfs                                       64       0        64   0% /dev/cgroup
/dev/mapper/app_vol_grp-app_lv0        3869352  423020   3230064  12% /misc/app_host
/dev/mapper/panini_vol_grp-host_lv85    991512  356492    567436  39% /dev/sde
tmpfs                                 32617424     508  32616916   1% /var/volatile
tmpfs                                 32617424      36  32617388   1% /run
tmpfs                                 32617424       0  32617424   0% /media/ram
none                                  32617424  678788  31938636   3% /dev/shm
none                                  32617424  678788  31938636   3% /dev/shm
/dev/mapper/pci_disk1-ssd_disk1_xr_1   5831720 1763640   3748800  32% /misc/disk1
/dev/loop8                              469636  113072    321448  27% /var/log
/dev/loop9                              469636   37676    396844   9% /misc/config
/dev/loop10                            2021324  376564   1524032  20% /misc/scratch
none                                       512       0       512   0% /mnt

[xr-vm_node0_RP0_CPU0:~]$losetup -a
/dev/loop0: [0005]:10264 (/dev/dm-11), offset 1048576, sizelimit 2620390912
/dev/loop1: [0028]:13056 (/dev/vdc), offset 1048576, sizelimit 513801728
/dev/loop2: [0028]:13056 (/dev/vdc), offset 514850816, sizelimit 513801728
/dev/loop3: [0028]:13056 (/dev/vdc), offset 1028653056, sizelimit 1110441472
/dev/loop4: [0028]:13055 (/dev/vdb1), offset 1048576
/dev/loop5: [0005]:10265 (/dev/dm-12), offset 1048576
/dev/loop6: [64768]:28 (/var/lib/docker/devicemapper/devicemapper/data)
/dev/loop7: [64768]:29 (/var/lib/docker/devicemapper/devicemapper/metadata)
/dev/loop8: [0043]:27573 (/dev/vdb), offset 1048576, sizelimit 513801728
/dev/loop9: [0043]:27573 (/dev/vdb), offset 514850816, sizelimit 513801728
/dev/loop10: [0043]:27573 (/dev/vdb), offset 1028653056, sizelimit 2136997376
/dev/loop11: [0005]:10266 (/dev/dm-13), offset 1048576
/dev/loop12: [0062]:69441 (/dev/vdb), offset 1048576, sizelimit 513801728
/dev/loop13: [0062]:69441 (/dev/vdb), offset 514850816, sizelimit 513801728
/dev/loop14: [0062]:69441 (/dev/vdb), offset 1028653056, sizelimit 2136997376
[xr-vm_node0_RP0_CPU0:~]$

 

 

 

Now we need to go to the host OS and check for /dev/dm-12

 

 

[xr-vm_node0_RP0_CPU0:~]$exit
exit
aRP/0/RP0/CPU0:NCS-5502-B#admin
Thu Jan 31 19:42:03.101 UTC

smilstea connected from 127.0.0.1 using console on xr-vm_node0_RP0_CPU0
sysadmin-vm:0_RP0# run
Thu Jan  31 19:42:05.880 UTC

[sysadmin-vm:0_RP0:~]$ssh 10.0.2.16
Last login: Thu Jan 31 18:40:48 2019 from 10.11.12.15
[host:0_RP0:~]$


[host:0_RP0:~]$ mount
/proc on /proc type proc (rw,relatime)
none on /sys type sysfs (rw,relatime)
none on /dev type devtmpfs (rw,relatime,mode=755)
/dev/mapper/panini_vol_grp-host_lv85 on / type ext4 (rw,relatime,discard,data=ordered)
run on /run type tmpfs (rw,relatime)
none on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /var/volatile type tmpfs (rw,relatime)
tmpfs on /media/ram type tmpfs (rw,relatime)
none on /dev/shm type tmpfs (rw,relatime)
none on /dev/shm type tmpfs (rw,relatime)
/dev/mapper/pci_disk1-ssd_disk1_hostos on /misc/disk1 type ext4 (rw,relatime,discard,data=ordered)
/dev/mapper/panini_vol_grp-host_data_scratch_lv0 on /misc/scratch type ext4 (rw,relatime,discard,data=ordered)
/dev/mapper/panini_vol_grp-host_data_config_lv0 on /misc/config type ext4 (rw,relatime,discard,data=ordered)
/dev/mapper/panini_vol_grp-host_data_log_lv0 on /var/log type ext4 (rw,relatime,discard,data=ordered)
none on /mnt type tmpfs (rw,relatime,size=512k)
/dev/ram7 on /mnt/ram7 type ext3 (rw,relatime,data=ordered)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
cgroup on /dev/cgroup/devices type cgroup (rw,relatime,devices)
cgroup on /dev/cgroup/memory type cgroup (rw,relatime,memory)
cgroup on /dev/cgroup/cpuacct type cgroup (rw,relatime,cpuacct)
cgroup on /dev/cgroup/cpuset type cgroup (rw,relatime,cpuset)
cgroup on /dev/cgroup/cpu type cgroup (rw,relatime,cpu)
cgroup on /dev/cgroup/freezer type cgroup (rw,relatime,freezer)
run on /run/netns type tmpfs (rw,relatime)
/proc on /run/netns/global-vrf type proc (rw,relatime)
nodev on /debugfs type debugfs (rw,relatime)
none on /mnt/pstore type pstore (rw,relatime)
/dev/dm-11 on /lxc_rootfs/panini_vol_grp-calvados_lv86 type ext4 (rw,relatime,data=ordered)
run on /run/lxc type tmpfs (rw,relatime)
/proc on /run/lxc/sysadmin/ns/net type proc (rw,relatime)
/proc on /run/netns/sysadmin.libvirt type proc (rw,relatime)
/dev/dm-12 on /lxc_rootfs/panini_vol_grp-xr_lv87 type ext4 (rw,relatime,data=ordered)
/dev/mapper/app_vol_grp-app_lv0 on /misc/app_host type ext4 (rw,relatime,data=ordered)
/dev/mapper/app_vol_grp-app_lv0 on /var/lib/docker type ext4 (rw,relatime,data=ordered)
/proc on /run/lxc/default-sdr--1/ns/net type proc (rw,relatime)
/proc on /run/netns/default-sdr--1.libvirt type proc (rw,relatime)
/dev/dm-13 on /lxc_rootfs/panini_vol_grp-xr_lcp_lv88 type ext4 (rw,relatime,data=ordered)
/proc on /run/lxc/default-sdr--2/ns/net type proc (rw,relatime)
/proc on /run/netns/default-sdr--2.libvirt type proc (rw,relatime)
[host:0_RP0:~]$

 

 

 

Here is a shortcut to see what the logical volume is, issue show install active and look for boot partition.

 

 

RP/0/RP0/CPU0:NCS-5502-B#show install active
Thu Jan 31 17:33:48.351 UTC
Node 0/RP0/CPU0 [RP]
  Boot Partition: xr_lv87
  Active Packages: 8
        ncs5500-xr-6.1.31 version=6.1.31 [Boot image]
        ncs5500-mcast-2.1.0.0-r6131
        ncs5500-mpls-2.1.0.0-r6131
        ncs5500-mgbl-3.0.0.0-r6131
        ncs5500-mpls-te-rsvp-2.3.0.0-r6131
        ncs5500-ospf-1.1.0.0-r6131
        ncs5500-isis-1.1.0.0-r6131
        ncs5500-k9sec-2.3.0.0-r6131

 

Below are some more outputs, take notice of pvdisplay and vgdisplay as they show the logical disk.

 

 

[host:0_RP0:~]$ lvdisplay
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/xr_lv87
  LV Name                xr_lv87
  VG Name                panini_vol_grp
  LV UUID                exoOm4-wcGb-cflN-0am4-bGV7-NW2m-gGoXAx
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-05-11 22:24:00 +0000
  LV Status              available
  # open                 1
  LV Size                3.99 GiB
  Current LE             1022
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:12
[host:0_RP0:/]$ mount | grep "lv"87
/dev/dm-12 on /lxc_rootfs/panini_vol_grp-xr_lv87 type ext4 (rw,relatime,data=ordered)
[host:0_RP0:/]$
[host:0_RP0:/]$ cat /etc/fstab
# stock fstab - you probably want to override this with a machine specific one
 
rootfs               /                    auto       defaults              1  1
proc                 /proc                proc       defaults              0  0
#none                 /dev/pts             devpts     newinstance,ptmxmode=620,mode=0620,gid=5       0  0
usbdevfs             /proc/bus/usb        usbdevfs   noauto                0  0
tmpfs                /var/volatile        tmpfs      defaults              0  0
tmpfs                /media/ram           tmpfs      defaults              0  0
none                 /dev/shm             tmpfs      defaults              0  0
 
 
[host:0_RP0:~]$ losetup -a
/dev/loop0: [0005]:10264 (/dev/dm-11), offset 1048576, sizelimit 2620390912
/dev/loop1: [0028]:13056 (/dev/vdc), offset 1048576, sizelimit 513801728
/dev/loop2: [0028]:13056 (/dev/vdc), offset 514850816, sizelimit 513801728
/dev/loop3: [0028]:13056 (/dev/vdc), offset 1028653056, sizelimit 1110441472
/dev/loop4: [0028]:13055 (/dev/vdb1), offset 1048576
/dev/loop5: [0005]:10265 (/dev/dm-12), offset 1048576
/dev/loop6: [64768]:28 (/var/lib/docker/devicemapper/devicemapper/data)
/dev/loop7: [64768]:29 (/var/lib/docker/devicemapper/devicemapper/metadata)
/dev/loop8: [0043]:27573 (/dev/vdb), offset 1048576, sizelimit 513801728
/dev/loop9: [0043]:27573 (/dev/vdb), offset 514850816, sizelimit 513801728
/dev/loop10: [0043]:27573 (/dev/vdb), offset 1028653056, sizelimit 2136997376
/dev/loop11: [0005]:10266 (/dev/dm-13), offset 1048576
/dev/loop12: [0062]:69441 (/dev/vdb), offset 1048576, sizelimit 513801728
/dev/loop13: [0062]:69441 (/dev/vdb), offset 514850816, sizelimit 513801728
/dev/loop14: [0062]:69441 (/dev/vdb), offset 1028653056, sizelimit 2136997376
[host:0_RP0:~]$ vgdisplay
<snip>
  --- Volume group ---
  VG Name               panini_vol_grp
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  49
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                12
  Open LV               8
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               29.56 GiB
  PE Size               4.00 MiB
  Total PE              7568
  Alloc PE / Size       6944 / 27.12 GiB
  Free  PE / Size       624 / 2.44 GiB
  VG UUID               hEQU26-H8PI-xk8n-CNZI-pJuE-nwtx-Bne3tg
[host:0_RP0:~]$ vgs
  VG             #PV #LV #SN Attr   VSize  VFree
  app_vol_grp      1   1   0 wz--n-  3.81g      0
  panini_vol_grp   1  12   0 wz--n- 29.56g   2.44g
  pci_disk1        1   5   0 wz--n- 19.66g 364.00m
[host:0_RP0:~]$
 
[host:0_RP0:~]$ vgdisplay --verbose
    Finding all volume groups
    Finding volume group "app_vol_grp"
  --- Volume group ---
  VG Name               app_vol_grp
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  2
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                1
  Open LV               1
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               3.81 GiB
  PE Size               4.00 MiB
  Total PE              976
  Alloc PE / Size       976 / 3.81 GiB
  Free  PE / Size       0 / 0
  VG UUID               avdeUD-6WJC-YcTO-x1Jd-Hau5-DBxi-vBlfME
 
  --- Logical volume ---
  LV Path                /dev/app_vol_grp/app_lv0
  LV Name                app_lv0
  VG Name                app_vol_grp
  LV UUID                4Mpo1Z-O5ib-XLTV-5kAh-Qmu2-0z0b-yrg10v
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-10 16:30:25 +0000
  LV Status              available
  # open                 1
  LV Size                3.81 GiB
  Current LE             976
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
 
  --- Physical volumes ---
  PV Name               /dev/sda6
  PV UUID               XH2QnP-QRDZ-I8b4-ckTf-ke4f-cGyM-p6r4lh
  PV Status             allocatable
  Total PE / Free PE    976 / 0
 
    Finding volume group "pci_disk1"
  --- Volume group ---
  VG Name               pci_disk1
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  14
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                5
  Open LV               5
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               19.66 GiB
  PE Size               4.00 MiB
  Total PE              5034
  Alloc PE / Size       4943 / 19.31 GiB
  Free  PE / Size       91 / 364.00 MiB
  VG UUID               DRXfVI-32c3-fIdC-5Vww-drHu-OvJA-PDgeVO
 
  --- Logical volume ---
  LV Path                /dev/pci_disk1/ssd_disk1_hostos
  LV Name                ssd_disk1_hostos
  VG Name                pci_disk1
  LV UUID                2mTPtX-Vn8f-pDC3-9PsD-CByK-WVEY-1ea6uU
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-06 21:08:12 +0000
  LV Status              available
  # open                 1
  LV Size                1.86 GiB
  Current LE             475
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1
 
  --- Logical volume ---
  LV Path                /dev/pci_disk1/ssd_disk1_calvados_1
  LV Name                ssd_disk1_calvados_1
  VG Name                pci_disk1
  LV UUID                fbTrpm-j5JX-kv1v-R73u-PwzY-pTN1-13U55b
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-06 21:08:13 +0000
  LV Status              available
  # open                 1
  LV Size                5.78 GiB
  Current LE             1479
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:2
 
  --- Logical volume ---
  LV Path                /dev/pci_disk1/ssd_disk1_xr_1
  LV Name                ssd_disk1_xr_1
  VG Name                pci_disk1
  LV UUID                k1ulPX-Vyui-jJQt-WwLJ-eoIi-RLV1-XsnUfg
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-06 21:08:15 +0000
  LV Status              available
  # open                 1
  LV Size                5.78 GiB
  Current LE             1479
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:3
 
  --- Logical volume ---
  LV Path                /dev/pci_disk1/xr_data_lv0
  LV Name                xr_data_lv0
  VG Name                pci_disk1
  LV UUID                fQiod9-d4IL-EnuY-IUGR-ixZm-pArq-SjUJli
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2017-04-10 16:37:07 +0000
  LV Status              available
  # open                 3
  LV Size                2.95 GiB
  Current LE             755
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:4
 
  --- Logical volume ---
  LV Path                /dev/pci_disk1/xr_lcp_data_lv0
  LV Name                xr_lcp_data_lv0
  VG Name                pci_disk1
  LV UUID                JlTfYG-5NVo-9AB5-fcWN-TOtF-e8n3-ufNl3M
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2017-04-10 16:38:28 +0000
  LV Status              available
  # open                 3
  LV Size                2.95 GiB
  Current LE             755
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:5
 
  --- Physical volumes ---
  PV Name               /dev/sda5
  PV UUID               mUcX9E-9LPu-F2dX-7T25-0Nne-Wq2z-XjyfLz
  PV Status             allocatable
  Total PE / Free PE    5034 / 91
 
    Finding volume group "panini_vol_grp"
  --- Volume group ---
  VG Name               panini_vol_grp
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  49
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                12
  Open LV               8
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               29.56 GiB
  PE Size               4.00 MiB
  Total PE              7568
  Alloc PE / Size       6944 / 27.12 GiB
  Free  PE / Size       624 / 2.44 GiB
  VG UUID               hEQU26-H8PI-xk8n-CNZI-pJuE-nwtx-Bne3tg
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/host_data_scratch_lv0
  LV Name                host_data_scratch_lv0
  VG Name                panini_vol_grp
  LV UUID                ffa9Rz-Y33Y-Go72-1Q50-Eivo-SUrm-OSa4V9
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-10 16:30:48 +0000
  LV Status              available
  # open                 1
  LV Size                1.76 GiB
  Current LE             450
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:6
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/host_data_log_lv0
  LV Name                host_data_log_lv0
  VG Name                panini_vol_grp
  LV UUID                FQC8Cb-xWGv-Sda3-WLYv-zKff-Tdsf-FDRv4k
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-10 16:30:49 +0000
  LV Status              available
  # open                 1
  LV Size                492.00 MiB
  Current LE             123
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:7
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/host_data_config_lv0
  LV Name                host_data_config_lv0
  VG Name                panini_vol_grp
  LV UUID                si5G1V-DwCL-vC3B-mmIo-5dKa-Iw1o-m2ZEvc
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-10 16:30:50 +0000
  LV Status              available
  # open                 1
  LV Size                92.00 MiB
  Current LE             23
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:8
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/calvados_data_lv0
  LV Name                calvados_data_lv0
  VG Name                panini_vol_grp
  LV UUID                XJTqV7-vR1b-iGOY-FzfQ-6Myt-TpTg-O92WWy
  LV Write Access        read/write
  LV Creation host, time host, 2017-04-10 16:30:51 +0000
  LV Status              available
  # open                 3
  LV Size                1.99 GiB
  Current LE             510
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:9
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/host_lv85
  LV Name                host_lv85
  VG Name                panini_vol_grp
  LV UUID                xq8zqA-iWtN-Oa6o-gyYa-dAgx-K9Rt-rOU87V
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-05-11 22:21:26 +0000
  LV Status              available
  # open                 1
  LV Size                1000.00 MiB
  Current LE             250
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:10
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/calvados_lv86
  LV Name                calvados_lv86
  VG Name                panini_vol_grp
  LV UUID                8GxSXQ-4Ldp-e6EM-qVWu-mOj8-q1Z2-pz8Gx4
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-05-11 22:22:06 +0000
  LV Status              available
  # open                 1
  LV Size                2.44 GiB
  Current LE             625
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:11
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/xr_lv87
  LV Name                xr_lv87
  VG Name                panini_vol_grp
  LV UUID                exoOm4-wcGb-cflN-0am4-bGV7-NW2m-gGoXAx
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-05-11 22:24:00 +0000
  LV Status              available
  # open                 1
  LV Size                3.99 GiB
  Current LE             1022
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:12
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/xr_lcp_lv88
  LV Name                xr_lcp_lv88
  VG Name                panini_vol_grp
  LV UUID                CaN9UY-s8cE-qUtp-H5Zp-1IVR-T2vN-iFeegp
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-05-11 22:28:35 +0000
  LV Status              available
  # open                 1
  LV Size                3.99 GiB
  Current LE             1022
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:13
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/host_lv89
  LV Name                host_lv89
  VG Name                panini_vol_grp
  LV UUID                duq0NJ-Onod-0o2r-2C24-1ePe-W9rT-zS3fb6
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-09-22 16:57:36 +0000
  LV Status              available
  # open                 0
  LV Size                1000.00 MiB
  Current LE             250
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:14
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/calvados_lv90
  LV Name                calvados_lv90
  VG Name                panini_vol_grp
  LV UUID                jYVtYD-B9xd-l16l-D2Gu-RtI7-l6TC-dvC5co
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-09-22 16:58:17 +0000
  LV Status              available
  # open                 0
  LV Size                2.44 GiB
  Current LE             625
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:15
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/xr_lv91
  LV Name                xr_lv91
  VG Name                panini_vol_grp
  LV UUID                y42pGe-dWmH-gPAE-z2nM-OLBh-pDzO-GFHQfi
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-09-22 17:00:15 +0000
  LV Status              available
  # open                 0
  LV Size                3.99 GiB
  Current LE             1022
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:16
 
  --- Logical volume ---
  LV Path                /dev/panini_vol_grp/xr_lcp_lv92
  LV Name                xr_lcp_lv92
  VG Name                panini_vol_grp
  LV UUID                R1xzFi-msiS-lDLj-YT1c-pFpL-HrCD-p1hlTg
  LV Write Access        read/write
  LV Creation host, time host:0_RP0, 2018-09-22 17:04:19 +0000
  LV Status              available
  # open                 0
  LV Size                3.99 GiB
  Current LE             1022
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:17
 
  --- Physical volumes ---
  PV Name               /dev/sda3
  PV UUID               qeE1pS-M3zz-tk7b-By3v-FWPr-LMcU-7ssE5N
  PV Status             allocatable
  Total PE / Free PE    7568 / 624
 
[host:0_RP0:~]$
[host:0_RP0:~]$ pvdisplay --verbose
    Scanning for physical volume names
  --- Physical volume ---
  PV Name               /dev/sda6
  VG Name               app_vol_grp
  PV Size               3.81 GiB / not usable 2.48 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              976
  Free PE               0
  Allocated PE          976
  PV UUID               XH2QnP-QRDZ-I8b4-ckTf-ke4f-cGyM-p6r4lh
 
  --- Physical volume ---
  PV Name               /dev/sda5
  VG Name               pci_disk1
  PV Size               19.67 GiB / not usable 4.65 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              5034
  Free PE               91
  Allocated PE          4943
  PV UUID               mUcX9E-9LPu-F2dX-7T25-0Nne-Wq2z-XjyfLz
 
  --- Physical volume ---
  PV Name               /dev/sda3
  VG Name               panini_vol_grp
  PV Size               29.56 GiB / not usable 1.44 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              7568
  Free PE               624
  Allocated PE          6944
  PV UUID               qeE1pS-M3zz-tk7b-By3v-FWPr-LMcU-7ssE5N
 
[host:0_RP0:~]$
 
 
 
[host:0_RP0:~]$ cat /etc/mtab
rootfs / rootfs rw 0 0
/proc /proc proc rw,relatime 0 0
none /sys sysfs rw,relatime 0 0
none /dev devtmpfs rw,relatime,mode=755 0 0
/dev/mapper/panini_vol_grp-host_lv85 / ext4 rw,relatime,discard,data=ordered 0 0
run /run tmpfs rw,relatime 0 0
none /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /var/volatile tmpfs rw,relatime 0 0
tmpfs /media/ram tmpfs rw,relatime 0 0
none /dev/shm tmpfs rw,relatime 0 0
none /dev/shm tmpfs rw,relatime 0 0
/dev/mapper/pci_disk1-ssd_disk1_hostos /misc/disk1 ext4 rw,relatime,discard,data=ordered 0 0
/dev/mapper/panini_vol_grp-host_data_scratch_lv0 /misc/scratch ext4 rw,relatime,discard,data=ordered 0 0
/dev/mapper/panini_vol_grp-host_data_config_lv0 /misc/config ext4 rw,relatime,discard,data=ordered 0 0
/dev/mapper/panini_vol_grp-host_data_log_lv0 /var/log ext4 rw,relatime,discard,data=ordered 0 0
none /mnt tmpfs rw,relatime,size=512k 0 0
/dev/ram7 /mnt/ram7 ext3 rw,relatime,data=ordered 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
cgroup /dev/cgroup/devices cgroup rw,relatime,devices 0 0
cgroup /dev/cgroup/memory cgroup rw,relatime,memory 0 0
cgroup /dev/cgroup/cpuacct cgroup rw,relatime,cpuacct 0 0
cgroup /dev/cgroup/cpuset cgroup rw,relatime,cpuset 0 0
cgroup /dev/cgroup/cpu cgroup rw,relatime,cpu 0 0
cgroup /dev/cgroup/freezer cgroup rw,relatime,freezer 0 0
run /run/netns tmpfs rw,relatime 0 0
/proc /run/netns/global-vrf proc rw,relatime 0 0
nodev /debugfs debugfs rw,relatime 0 0
none /mnt/pstore pstore rw,relatime 0 0
/dev/loop0 /lxc_rootfs/panini_vol_grp-calvados_lv86 ext4 rw,relatime,data=ordered 0 0
run /run/lxc tmpfs rw,relatime 0 0
/proc /run/lxc/sysadmin/ns/net proc rw,relatime 0 0
/proc /run/netns/sysadmin.libvirt proc rw,relatime 0 0
/dev/loop5 /lxc_rootfs/panini_vol_grp-xr_lv87 ext4 rw,relatime,data=ordered 0 0
/dev/mapper/app_vol_grp-app_lv0 /misc/app_host ext4 rw,relatime,data=ordered 0 0
/dev/mapper/app_vol_grp-app_lv0 /var/lib/docker ext4 rw,relatime,data=ordered 0 0
/proc /run/lxc/default-sdr--1/ns/net proc rw,relatime 0 0
/proc /run/netns/default-sdr--1.libvirt proc rw,relatime 0 0
/dev/loop11 /lxc_rootfs/panini_vol_grp-xr_lcp_lv88 ext4 rw,relatime,data=ordered 0 0
/proc /run/lxc/default-sdr--2/ns/net proc rw,relatime 0 0
/proc /run/netns/default-sdr--2.libvirt proc rw,relatime 0 0
[host:0_RP0:~]$

 

 

 

 

Fdisk can be used to show us all the logical disks:

[host:0_RP0:~]$ fdisk -l

Disk /dev/sda: 59.6 GiB, 64023257088 bytes, 125045424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 6BFB6C1F-A7FE-47FA-A195-F14A5A7D0B14

Device           Start          End   Size Type
/dev/sda1           40      1757815 858.3M Microsoft basic data
/dev/sda2      1757816     13757815   5.7G Microsoft basic data
/dev/sda3     13757816     75757815  29.6G Microsoft basic data
/dev/sda4     75757816     75796871  19.1M EFI System
/dev/sda5     75796872    117044919  19.7G Microsoft basic data
/dev/sda6    117044920    125045383   3.8G Microsoft basic data


Disk /dev/mapper/app_vol_grp-app_lv0: 3.8 GiB, 4093640704 bytes, 7995392 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/pci_disk1-ssd_disk1_hostos: 1.9 GiB, 1992294400 bytes, 3891200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/pci_disk1-ssd_disk1_calvados_1: 5.8 GiB, 6203375616 bytes, 12115968 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/pci_disk1-ssd_disk1_xr_1: 5.8 GiB, 6203375616 bytes, 12115968 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/pci_disk1-xr_data_lv0: 3 GiB, 3166699520 bytes, 6184960 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xe76476d5

Device                              Boot     Start       End  Blocks  Id System
/dev/mapper/pci_disk1-xr_data_lv0p1           2048   1005567  501760  83 Linux
/dev/mapper/pci_disk1-xr_data_lv0p2        1005568   2009087  501760  83 Linux
/dev/mapper/pci_disk1-xr_data_lv0p3        2009088   6182911 2086912  83 Linux


Disk /dev/mapper/pci_disk1-xr_lcp_data_lv0: 3 GiB, 3166699520 bytes, 6184960 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x3967eae3

Device                                  Boot     Start       End  Blocks  Id System
/dev/mapper/pci_disk1-xr_lcp_data_lv0p1           2048   1005567  501760  83 Linux
/dev/mapper/pci_disk1-xr_lcp_data_lv0p2        1005568   2009087  501760  83 Linux
/dev/mapper/pci_disk1-xr_lcp_data_lv0p3        2009088   6182911 2086912  83 Linux


Disk /dev/mapper/panini_vol_grp-host_data_scratch_lv0: 1.8 GiB, 1887436800 bytes, 3686400 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/panini_vol_grp-host_data_log_lv0: 492 MiB, 515899392 bytes, 1007616 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/panini_vol_grp-host_data_config_lv0: 92 MiB, 96468992 bytes, 188416 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/panini_vol_grp-calvados_data_lv0: 2 GiB, 2139095040 bytes, 4177920 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x9c882cdb

Device                                         Boot     Start       End  Blocks  Id System
/dev/mapper/panini_vol_grp-calvados_data_lv0p1           2048   1005567  501760  83 Linux
/dev/mapper/panini_vol_grp-calvados_data_lv0p2        1005568   2009087  501760  83 Linux
/dev/mapper/panini_vol_grp-calvados_data_lv0p3        2009088   4177919 1084416  83 Linux


Disk /dev/mapper/panini_vol_grp-host_lv85: 1000 MiB, 1048576000 bytes, 2048000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/panini_vol_grp-calvados_lv86: 2.5 GiB, 2621440000 bytes, 5120000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x6e1aea16

Device                                     Boot Start       End  Blocks  Id System
/dev/mapper/panini_vol_grp-calvados_lv86p1       2048   5119999 2558976  83 Linux


Disk /dev/mapper/panini_vol_grp-xr_lv87: 4 GiB, 4286578688 bytes, 8372224 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x2dac546a

Device                               Boot Start       End  Blocks  Id System
/dev/mapper/panini_vol_grp-xr_lv87p1       2048   8370175 4184064  83 Linux


Disk /dev/mapper/panini_vol_grp-xr_lcp_lv88: 4 GiB, 4286578688 bytes, 8372224 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x82d479bd

Device                                   Boot Start       End  Blocks  Id System
/dev/mapper/panini_vol_grp-xr_lcp_lv88p1       2048   8370175 4184064  83 Linux


Disk /dev/mapper/panini_vol_grp-host_lv89: 1000 MiB, 1048576000 bytes, 2048000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/panini_vol_grp-calvados_lv90: 2.5 GiB, 2621440000 bytes, 5120000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x0a9ac55c

Device                                     Boot Start       End  Blocks  Id System
/dev/mapper/panini_vol_grp-calvados_lv90p1       2048   5119999 2558976  83 Linux


Disk /dev/mapper/panini_vol_grp-xr_lv91: 4 GiB, 4286578688 bytes, 8372224 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x3de20111

Device                               Boot Start       End  Blocks  Id System
/dev/mapper/panini_vol_grp-xr_lv91p1       2048   8370175 4184064  83 Linux


Disk /dev/mapper/panini_vol_grp-xr_lcp_lv92: 4 GiB, 4286578688 bytes, 8372224 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x26cdbf13

Device                                   Boot Start       End  Blocks  Id System
/dev/mapper/panini_vol_grp-xr_lcp_lv92p1       2048   8370175 4184064  83 Linux


Disk /dev/mapper/docker-253:0-25-pool: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 65536 bytes

 

 

 

 

 

Now to view the physical devices and how they map logically to partitions and LVMs.

As we can see below there is only one physical disk called sda, partitions into 6 partitions, sda3 which we were looking at earlier contains the vl87 VLM which maps to the rootfs mount point on loop 5.

 

[host:0_RP0:~]$ lsblk
NAME                                     MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                                        8:0    0  59.6G  0 disk
|-sda1                                     8:1    0 858.3M  0 part
|-sda2                                     8:2    0   5.7G  0 part
|-sda3                                     8:3    0  29.6G  0 part
| |-panini_vol_grp-host_data_scratch_lv0 253:6    0   1.8G  0 lvm  /misc/scratch
| |-panini_vol_grp-host_data_log_lv0     253:7    0   492M  0 lvm  /var/log
| |-panini_vol_grp-host_data_config_lv0  253:8    0    92M  0 lvm  /misc/config
| |-panini_vol_grp-calvados_data_lv0     253:9    0     2G  0 lvm
| |-panini_vol_grp-host_lv85             253:10   0  1000M  0 lvm  /
| |-panini_vol_grp-calvados_lv86         253:11   0   2.5G  0 lvm
| |-panini_vol_grp-xr_lv87               253:12   0     4G  0 lvm
| |-panini_vol_grp-xr_lcp_lv88           253:13   0     4G  0 lvm
| |-panini_vol_grp-host_lv89             253:14   0  1000M  0 lvm
| |-panini_vol_grp-calvados_lv90         253:15   0   2.5G  0 lvm
| |-panini_vol_grp-xr_lv91               253:16   0     4G  0 lvm
| `-panini_vol_grp-xr_lcp_lv92           253:17   0     4G  0 lvm
|-sda4                                     8:4    0  19.1M  0 part
|-sda5                                     8:5    0  19.7G  0 part
| |-pci_disk1-ssd_disk1_hostos           253:1    0   1.9G  0 lvm  /misc/disk1
| |-pci_disk1-ssd_disk1_calvados_1       253:2    0   5.8G  0 lvm
| |-pci_disk1-ssd_disk1_xr_1             253:3    0   5.8G  0 lvm
| |-pci_disk1-xr_data_lv0                253:4    0     3G  0 lvm
| `-pci_disk1-xr_lcp_data_lv0            253:5    0     3G  0 lvm
`-sda6                                     8:6    0   3.8G  0 part
  `-app_vol_grp-app_lv0                  253:0    0   3.8G  0 lvm  /misc/app_host
loop0                                      7:0    0   2.5G  0 loop /lxc_rootfs/panini_vol_grp-calvados_lv86
loop1                                      7:1    0   490M  0 loop
loop2                                      7:2    0   490M  0 loop
loop3                                      7:3    0     1G  0 loop
loop4                                      7:4    0   5.7G  0 loop
loop5                                      7:5    0     4G  0 loop /lxc_rootfs/panini_vol_grp-xr_lv87
loop6                                      7:6    0   100G  0 loop
`-docker-253:0-25-pool                   253:18   0   100G  0 dm
loop7                                      7:7    0     2G  0 loop
`-docker-253:0-25-pool                   253:18   0   100G  0 dm
loop8                                      7:8    0   490M  0 loop
loop9                                      7:9    0   490M  0 loop
loop10                                     7:10   0     2G  0 loop
loop11                                     7:11   0     4G  0 loop /lxc_rootfs/panini_vol_grp-xr_lcp_lv88
loop12                                     7:12   0   490M  0 loop
loop13                                     7:13   0   490M  0 loop
loop14                                     7:14   0     2G  0 loop
[host:0_RP0:~]$

 

 

 One more command that can be useful.

 

[host:0_RP0:~]$ parted -l
Model: ATA Micron_M600_MTFD (scsi)
Disk /dev/sda: 64.0GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name         Flags
 1      20.5kB  900MB   900MB   ext4         partition01
 2      900MB   7044MB  6144MB               partition02
 3      7044MB  38.8GB  31.7GB               partition03
 4      38.8GB  38.8GB  20.0MB  fat16        partition04  boot
 5      38.8GB  59.9GB  21.1GB               partition05
 6      59.9GB  64.0GB  4096MB               partitiontp