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Hi people, I've some dubt about the hot spare configuration on vnx. This is a picture from a vnx5600 that show some warning:
And here is the unbound disk on the same vnx:
I've one FAST VP unbound disk, the only where i'm not protected is on flare disk and fast cache disk ( they are configured in mirror 1/0 ). So, my question is:is my array protected ? why it shows these warning? Thanks!
4177
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Posted October 11th, 2016 05:00
Hi
As per recommendations SAS 300GB has 32 disks for that you need have 2 hot spares but you have configured only one disk
400GB SAS FLASH has 2 disks you need to configure one hot spare but you don't have spare for that. So totally you need to configure 2 hot spares, one for SAS and one for NL-SAS.
Note: you have unbound disks not hot spare's. Need configure as Hot Spare.
Thanks
4177
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Posted October 12th, 2016 01:00
Warnings are clear, you need two more disks to meet the policy.
Unbound status is correct with VNX2, it is not shown as hotspare, any unbound will be used as hotspare.
4177
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Posted October 12th, 2016 03:00
Thanks for your reply but still I don't understand.
So I've 2 warning. The fist one is related to SAS 268 GB, on the VNX we've 32 disks ( of this type ) but four of these are the VAULT disk ( They don't need hot spare ), so the number of disk are 28, and the policy is respected ( 1 for 30 disk ).
The other warning is on SAS Flash VP ( 366 GB ). Total number of disk on my system are 10. I've used 9 disk on a RAID5 8+1 and 1 is unbound, so the policy are met, why I still show the warning?
4177
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Posted October 12th, 2016 05:00
Apparently your vault disks are counted here too.
For SAS Flash VP, you are giving mixed info.
1st pic states that you have only 2 Flash VP disks in the system and none unbound?
(Those for FastCache? they need spare too.)
But 2nd pic shows one Flash VP unbound.
Then, you just wrote that you have 10 Flash VP disks? Those are not listed in 1st pic at all? Some rows are missing, or wrong system in picture..
Notice that FastCache and Flash VP can be different kind of disks, and need separate spare for each.
4177
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Posted October 12th, 2016 06:00
Thanks Sami for your reply.
So, The first pictures show that I've only 2 Flash VP disk, but it's not true.
As
I've 2 disk for fast cache ( 100 GB size ), configured as RAID1. I've no hot spare for fast cache, I know but VNX doesn't show any alert for this, VNX show warning for the other type of disk ( Flash VP 366 GB ) and, as I said before I've 10 disk. ) 9 are into a RAID5 8+1 and 1 is unbound.
For the other SAS I'm changing the Raccomanded Hot Spare to 1 for 32 disk, just to remove the warning.
asx1
17 Posts
4177
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Posted October 13th, 2016 08:00
The problem is solved restarting the management server.
Now I can see the right policy for FAST VP disk. Of course I need one disk for Fast Cache type!
Thanks to all!