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EVA number of disks

Frantisek Kysela
Valued Contributor

EVA number of disks

Hi all,
I know that EVA need a minimum 8 of disks to operate. But what happen, when there is EVA with 8 disk and one of them fail.
Can EVA operate in this circumstance?

Thanks for reply
Frantisek
If anything just cannot go wrong, it will anyway.
3 REPLIES
Steven Clementi
Honored Contributor

Re: EVA number of disks

Yhe minimum amount of disks needed to "create" a disk group is 8.

If one fails, thats ok.. the disk group is already created and has it's protection level set and etc.

The minimum amount to "operate" the EVA i think is 5 or maybe 6... not sure.


Steven
Steven Clementi
HP Master ASE, Storage and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5)
RHCE
NPP3 (Nutanix Platform Professional)
Ivan Ferreira
Honored Contributor

Re: EVA number of disks

If one disk fails the EVA will continue the operation, if you use vraid1 and vraid5. The 8 disks restriction is only to create the disk group. Also, you should know that when you create a disk group, you should (must) assign a protection level. If you assign protection level single, the space of two disks will be used as "spare space", if you select double, the space of four disks will be used as "spare space". Consider that in your configuration planning.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Frantisek Kysela
Valued Contributor

Re: EVA number of disks

Thanks
If anything just cannot go wrong, it will anyway.