Please help: measure is missing from the data store

Hello

I have an a 20 TB drive data store and a magnitude of about 40 TB (local disks, areca raid controller).

Long story short, I had to delete and re-create the volume 40 to on the RAID controller (without initialization, of course).

Now all the data is there but eui has changed for the 40 to volume and vmware is unable to mount.

log/hostd.log:2016-05-10T07:17:16.107Z of information pass [3D380B70] [Originator@6876 sub = Vimsvc.ha - eventmgr] event 118: a connected device eui.001b4d2051676528:1 may be offline. [Backvol1, 55e980d4-386dfa7f-7cb2-0cc47a09ba36] file system now is in a degraded state. While the data store is always available, parts of data residing on the extent which went offline may be inaccessible.

[root@esxi2:/vmfs/volumes/55e980d4-386dfa7f-7cb2-0cc47a09ba36] esxcli instant vmfs storage list

Volume name:

VMFS UUID:

Can mount: false

UN-mountability reason: a few missing extensions

Can will: false

Reason for non-resignaturability: some missing extensions

County of measure pending: 1

Can someone help me please?

Thank you!

Hello
You asked for instructions on how to readd a missing measure.
Basically, it's pretty easy:
in the VMFS to VMFS-based volume header section, you can assign extends it.
Lets say that the basic volume is mpx.vmhba1:C0:T3:L0:1
first of all extend is mpx.vmhba1:C0:T4:L0:1
second extension is mpx.vmhba1:C0:T5:L0:1
Then you will see this string in the VMFS header:
vmhba1:3:0
and a little later

MPX.vmhba1:C0:T3:l0:1

MPX.vmhba1:C0:T4:l0:1

MPX.vmhba1:C0:T5:l0:1
Just change the list of stretches.
But: normally you can't change this section at all, and to add to the confusion, these values are stored in RAM is not trivial to change this value correctly.
I highly recommend that instead of try it yourself and repeat all the mistakes I made while learning it - call me.
I rather help you personally to give dangerous advice that will probably make things worse.

Tags: VMware

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