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EVA vdisk with VRAID5 type

Pearl Park
Occasional Advisor

EVA vdisk with VRAID5 type

This is about HP EVA 5000.
A disk group has 10 disks.
A virtual disk with size=2GB and VRAID5 type is created from the disk group.
This virtual disk has columns=10. Correct?
How about parity? Is parity column=1 or 10?

Thanks.
3 REPLIES
Peter Mattei
Honored Contributor

Re: EVA vdisk with VRAID5 type

I am not sure what you actually want to find out and what you mean by column
!
I assume you either want to know about maintaining redundancy or striping with a small Vdisk of 2GB.

Vdisks are built with Rstores of 2MB.
Rstores are built with Psegs.
For Vraid5 5 Psegs form an Rstore (4 data 1 parity pseg)

So redundancy and striping is perfectly maintained even with vdisks of just 2GB.

Does this answer your question?

Cheers
Peter
I love storage
John McNulty_2
Frequent Advisor

Re: EVA vdisk with VRAID5 type


It may or may not have answered Pearl's question, but it certainly answered mine.

Thanks Peter.
Patrick Terlisten
Honored Contributor

Re: EVA vdisk with VRAID5 type

Hello Peter,

isn't it the other way round? 2 MB for each PSEG and 4+1 PSEG for a RAID 5 RSTORE (10 MB)?

Best regards,
Patrick
Best regards,
Patrick