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Match a logical drive from my RAID to vSphere volume.

Posted on 2015-02-10
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Last Modified: 2015-02-10
I have a punctured array on my Cisco C class server (LSI MegaRAID SAS 9266-8i card). I'm replacing the drives and going to re-initialize the array but I'm not certain which it is in my vSphere setup. I have two identically sized logical drives, I moved all the data off of the one that I *thought* had the puncture but now I'm starting to second guess that (the drives on the one I thought had data are quiet and the one I thought was empty and has the puncture is blinking a lot of activity).

I tried the following commands from the vSphere shell but am having trouble finding any info to tie the logical volume to the storage in VMware with certainty. Can someone explain to me how to do this as I'm not seeing anything matching between them?

./MegaCli  -LDInfo -Lall -aAll
./MegaCli  -AdpAllInfo aAll
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Question by:DaveQuance
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LVL 125
ID: 40601944
Is ESXi installed on the disks?

what is the make up of the installation?

two arrays/logical disks ?

one with the ESXi OS and the other a datastore volume ?

You should be able to detect which has a VMFS single partition, and which has multiple partitions (this is the ESXi OS).

using fdisk, df -h, partedutil
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Author Comment

by:DaveQuance
ID: 40602033
Apologies if I don't properly answer all the questions. I know in my server management card it's the second RAID 5, disks 6-8 that need to be replaced but I'm not certain which it is in vSphere and I obviously don't want to accidentally wipe the data.

There are 3 logical drives:
  Logical Volume 1 - RAID 1 where ESXI is installed
  Logical Volume 2 -  RAID 5 datastore volume (added after install)
  Logical Volume 3 -  RAID 5 datastore volume (added after install)

Attached are outputs.
MegaCLI-LogicalDrives.txt
ESXi-Partitions.txt
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LVL 125

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 2000 total points
ID: 40602064
if you look in Storage > Devcies Tab

does this help you?

also have a read of this VMware KB Article

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1014953
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Author Comment

by:DaveQuance
ID: 40602090
I see a Runtime name for each:

vmhba0:C2:T0:L0
vmhba0:C2:T1:L0 -> (naa...f2 VH05_R5-A2
vmhba0:C2:T2:L0 -> (naa...dc) VH05_R5-A1

I think the T0 - T2 correlate with my logical drive volume numbers. I'm just reading through that link to be 100%, thank you so far and I'll try to get this confirmed and points awarded shortly.
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LVL 125
ID: 40602111
I would agree, T0, T1, T2 are the LUNs, or arrays, logical disks.

if you have three,

ESXi OS
datastore1
datastore2

you should be able to see disk access, and all lights flashing on the actual disks, if you copy to a datastore, to confirm.

e.g. upload an iso to  VH05_R5-A1 etc
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Author Closing Comment

by:DaveQuance
ID: 40602128
I appreciate the help and how quickly you responded. Thank you again.
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