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тАО01-26-2007 08:19 AM
тАО01-26-2007 08:19 AM
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.
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 3
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тАО01-27-2007 04:53 AM
тАО01-27-2007 04:53 AM
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 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
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тАО05-29-2009 12:50 AM
тАО05-29-2009 12:50 AM
Re: EVA vdisk with VRAID5 type
It may or may not have answered Pearl's question, but it certainly answered mine.
Thanks Peter.
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тАО05-29-2009 01:01 AM
тАО05-29-2009 01:01 AM
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
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
Patrick
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