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EVA 8100 maximum disks in a disk group

Peter Strauss
Occasional Contributor

EVA 8100 maximum disks in a disk group

In an eva 8100 i have 84 Disks (300GB, FC, 10k)in 8 shelves installed.
All disk are in one disk group.
Now i extend the Storage with 28 additional disks (I fill all shelves to the maximum namber of 14 disks).
Is it possible and usefull to add the new disks to the exisiting disk group? Are there any performance or availability issues?

Thanks
3 REPLIES
IBaltay
Honored Contributor

Re: EVA 8100 maximum disks in a disk group

Hi,
this document could help you:
ftp://ftp.compaq.com/pub/products/storageworks/whitepapers/5982-9140EN.pdf
the pain is one part of the reality
Uwe Zessin
Honored Contributor

Re: EVA 8100 maximum disks in a disk group

Last time I checked, you could put (all) up to 240 disk drives in a single disk group. I don't have a reference, but got told once that the performance does not improve beyound 120 to 160 disk drives in a group.

The downside is that the leveling due to a disk failure, ungroup or group takes more time on a larger disk group. But, no, it does not make sense either to create many, small disk groups ;-)
.
Peter Strauss
Occasional Contributor

Re: EVA 8100 maximum disks in a disk group

Thank you