cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
373
Views
0
Helpful
1
Replies

UCS drive configuration question

andwec
Level 1
Level 1

Hello all -- I'm fairly new to Cisco servers and have inherited a C240 M4 that I'm going to be doing an OS upgrade on soon.  It has 24 drives installed (3 SSDs + 21 SAS's) and I see the following RAID arrays configured in the CIMC:

 

Virtual Drive 0)  SSD 1, 2, 3 in RAID5, total size = ~913GB  (marked as boot drive)

Virtual Drive 1)  HDD 4-21 in RAID6, total size = ~16TB

 

Now what I see in Windows storage management is the following - all listed as separate physical disks (not as separate partitions on the same disk):

c:\ = 110GB

e:\ = 892GB 

f:\ = 15.9TB

 

Obviously the F: drive is the 21 SAS drives, and the E: drive is the 3 SSD's.  But I cannot figure out where the C: drive is living.  It's definitely not on VD 1.  Since the VD 0 array is marked as the boot drive, it must be on that one -- but then the drive sizes don't add up.  C: + E: sizes add up to more than what that array can hold  (110 + 892 > 913).  Unless there's some kind of deduplication or compression happening that I don't see in the CIMC?

 

I opened a ticket with Cisco, but they are unable to help me identify disks/partitions at the OS level.  I'm kinda lost at this point.

What am I missing?

 

Thanks.

 

1 Reply 1

Steven Tardy
Cisco Employee
Cisco Employee

C240 M4 sometimes has an Internal disks as a boot drive.

See: https://www.cisco.com/c/dam/en/us/products/collateral/servers-unified-computing/ucs-c-series-rack-servers/c240m4-sff-spec-sheet.pdf

  Table 14 Available Boot Drives (mounted inside chassis)

Also: https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/hw/C240M4/install/C240M4/replace.html#97322

 12 SATA boot drives (two sockets available only on PCIe riser 1 option 1C)

Review Cisco Networking for a $25 gift card

Review Cisco Networking for a $25 gift card