flash differences for 3850 switches

[ring_gt]

We have 2 3850 switches in stack, and the flash memory as per the datasheet should be 2GB. HOwever, when running the show version in stack, not only do the flash memory of the 2 switches not reach 2GB, the overall memory capacity slightly differ as well. Is there an explanation for this? Thanks.

cisco WS-C3850-24T (MIPS) processor (revision Q0) with 839936K/6147K bytes of memory.
Processor board ID FCW1842C1RD
6 Virtual Ethernet interfaces
56 Gigabit Ethernet interfaces
8 Ten Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
257008K bytes of Crash Files at crashinfo:.
250456K bytes of Crash Files at crashinfo-2:.
1550272K bytes of Flash at flash:.
1609272K bytes of Flash at flash-2:.
0K bytes of WebUI ODM Files at webui:.

[Georg Pauwen · Accepted solution]

Hello,

as far as I recall, flash size will shrink a bit after formatting. Which IOS version are you running ? Try the exec command 'software clean' to delete residual files, and then post the output of 'show flash'...

[ring_gt]

HI Georg,

IOS Version 16.08.01a.
I cannot do a software clean now but below is the dir output of the 2 flash

#dir flash-1:
Directory of flash:/

24242 -rw- 2097152 Jul 27 2018 15:35:53 +09:00 nvram_config
24243 -rwx 74369716 Dec 15 2014 20:12:16 +09:00 cat3k_caa-base.SPA.03.02.03.SE.pkg
24244 -rwx 5808828 Dec 15 2014 20:12:16 +09:00 cat3k_caa-drivers.SPA.03.02.03.SE.pkg
24245 -rwx 32496484 Dec 15 2014 20:12:16 +09:00 cat3k_caa-infra.SPA.03.02.03.SE.pkg
24246 -rwx 30418104 Dec 15 2014 20:12:16 +09:00 cat3k_caa-iosd-universalk9.SPA.150-1.EX3.pkg
24247 -rwx 16059104 Dec 15 2014 20:12:16 +09:00 cat3k_caa-platform.SPA.03.02.03.SE.pkg
24248 -rwx 64586444 Dec 15 2014 20:12:16 +09:00 cat3k_caa-wcm.SPA.10.0.120.0.pkg
24249 -rwx 1224 Dec 15 2014 20:12:26 +09:00 packages.conf
24250 -rwx 290830104 Jan 22 2015 16:18:54 +09:00 cat3k_caa-universalk9.SPA.03.06.01.E.152-2.E1.bin
56561 drwx 4096 Jul 12 2018 16:56:49 +09:00 dc_profile_dir
24262 -rw- 736 Jul 12 2018 17:00:24 +09:00 vlan.dat
24252 -rw- 425928073 Jun 28 2018 07:40:02 +09:00 cat3k_caa-universalk9.16.08.01a.SPA.bin
24253 drwx 4096 Jul 12 2018 16:56:31 +09:00 .installer
24254 -rw- 296 Jul 12 2018 16:56:33 +09:00 bootloader_evt_handle.log
24255 drwx 4096 Jun 28 2018 07:59:15 +09:00 core
80802 drwx 4096 Jun 28 2018 15:54:16 +09:00 .prst_sync
11 drwx 4096 Jun 28 2018 07:51:40 +09:00 .rollback_timer
8081 drwx 4096 Jun 28 2018 07:51:49 +09:00 gs_script
16161 drwx 4096 Jun 28 2018 07:51:49 +09:00 tech_support
24256 -rw- 118711 Jul 12 2018 16:57:05 +09:00 memleak.tcl
24251 -rw- 76 Jul 12 2018 16:56:52 +09:00 boothelper.log
24258 drwx 4096 Jun 28 2018 16:08:57 +09:00 .dbpersist
24259 -rw- 2097152 Jul 27 2018 15:35:54 +09:00 nvram_config_bkup
24260 drwx 4096 Jun 28 2018 07:59:15 +09:00 onep
24257 -rw- 736 Jul 12 2018 17:03:27 +09:00 stby-vlan.dat

1562509312 bytes total (529022976 bytes free)
#
#
#
#dir flash-2:
Directory of flash-2:/

38722 -rw- 2097152 Jul 27 2018 15:35:56 +09:00 nvram_config
38723 -rwx 74369716 Feb 26 2014 18:10:05 +09:00 cat3k_caa-base.SPA.03.02.03.SE.pkg
38724 -rwx 5808828 Feb 26 2014 18:10:06 +09:00 cat3k_caa-drivers.SPA.03.02.03.SE.pkg
38725 -rwx 32496484 Feb 26 2014 18:10:05 +09:00 cat3k_caa-infra.SPA.03.02.03.SE.pkg
38726 -rwx 30418104 Feb 26 2014 18:10:06 +09:00 cat3k_caa-iosd-universalk9.SPA.150-1.EX3.pkg
38727 -rwx 16059104 Feb 26 2014 18:10:05 +09:00 cat3k_caa-platform.SPA.03.02.03.SE.pkg
38728 -rwx 64586444 Feb 26 2014 18:10:06 +09:00 cat3k_caa-wcm.SPA.10.0.120.0.pkg
13 -rw- 1235 Oct 24 2014 11:05:29 +09:00 packages.conf
11 drwx 4096 Oct 24 2014 11:06:06 +09:00 mnt
15504 -rw- 736 Jul 12 2018 17:06:03 +09:00 vlan.dat
38735 drwx 4096 Jun 28 2018 13:12:57 +09:00 core
38730 -rw- 289970248 Oct 24 2014 08:11:51 +09:00 cat3k_caa-universalk9.SPA.03.06.00.E.152-2.E.bin
12 -rwx 1224 Feb 26 2014 18:10:16 +09:00 packages.conf.00-
14 -rw- 25118 Feb 27 2015 12:01:11 +09:00 2-26_conf
69699 -rw- 82672260 Oct 24 2014 11:05:24 +09:00 cat3k_caa-base.SPA.03.06.00E.pkg
69700 -rw- 6601404 Oct 24 2014 11:05:24 +09:00 cat3k_caa-drivers.SPA.03.06.00E.pkg
69701 -rw- 33747948 Oct 24 2014 11:05:24 +09:00 cat3k_caa-infra.SPA.03.06.00E.pkg
69702 -rw- 42769724 Oct 24 2014 11:05:25 +09:00 cat3k_caa-iosd-universalk9.SPA.152-2.E.pkg
69703 -rw- 25711500 Oct 24 2014 11:05:25 +09:00 cat3k_caa-platform.SPA.03.06.00E.pkg
69704 -rw- 98462528 Oct 24 2014 11:05:25 +09:00 cat3k_caa-wcm.SPA.10.2.102.0.pkg
85185 drwx 4096 Jul 12 2018 16:56:22 +09:00 dc_profile_dir
38733 drwx 4096 Jul 12 2018 16:56:05 +09:00 .installer
38729 -rw- 674632 Jan 12 2016 04:47:21 +09:00 t1cap.pcap
38732 -rw- 425928073 Jun 28 2018 12:10:09 +09:00 cat3k_caa-universalk9.16.08.01a.SPA.bin
38734 -rw- 407 Jul 12 2018 16:56:07 +09:00 bootloader_evt_handle.log
46465 drwx 4096 Jun 28 2018 12:30:10 +09:00 .prst_sync
61953 drwx 4096 Jun 28 2018 12:30:13 +09:00 .rollback_timer
69697 drwx 4096 Jun 28 2018 12:30:22 +09:00 gs_script
77441 drwx 4096 Jun 28 2018 12:30:22 +09:00 tech_support
38736 -rw- 118711 Jul 12 2018 16:56:38 +09:00 memleak.tcl
15501 -rw- 76 Jul 12 2018 16:56:25 +09:00 boothelper.log
38738 drwx 4096 Jun 28 2018 15:28:58 +09:00 .dbpersist
38739 -rw- 2097152 Jul 27 2018 15:35:56 +09:00 nvram_config_bkup
38740 drwx 4096 Jun 28 2018 13:12:56 +09:00 onep
15502 -rw- 676 Jun 28 2018 15:46:05 +09:00 stby-vlan.dat

[paul driver]

Hello

Looks likely that the flash(s) have differing multiple residual files -  I agree with Georg a clean up looks a possibility - However have read of this first prior to any removal of files. - Here