Deleting Multiple Disk on EVA 5000

[Nava Murali]

Hi,
Spec :
EVA5000 HSV110
Command View : SR0025vcsp-3110

I have around 28 Vdisk in 10 different folder.
All disk are created from 3 DG with total of 164, divided evenly by multiple of 8.

1) I am deleting all the Vdisk, is it advisable to delete them all on one time, or is there a limit on no. of vdisk can be deleted per time ? Which is faster?

2) How does the EVA controller react for a deletion request, as which takes precedence, deletion, add, IO operation ?

Thanks.

[Greybeard]

hi, it could take a while as capacity levelling will probably kick in. If you don't want to keep any of the vdisks it would probably be quicker to simply un-initialise the EVA and then re-initialise it, all config gone in one hit then.

[Víctor Cespón · Accepted solution]

When deleting vdisks, wait one minute between each deletion, to allow the cache to be flushed.
Or set the cache to write-through before doing that. Not waiting enough can lead to "disk stalled too long" and controller hang.

As stated above, if you're going to delete everithing maybe it would be a batter idea to re-initialice the EVA and take the oportunity to update firmware of the controllers and disks.

[Nava Murali]

1 ) Deleting 4 vdisk per eVA is better than del all.

2) unsure.