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тАО01-19-2011 11:18 AM
тАО01-19-2011 11:18 AM
I think that is best to distribute the application in a large number of diskgroup so they don't have to share disk i/o, but i don't know if the HSV450 loss performance if it works with too much diskgroups
Thanks in advance!
Matias
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тАО01-19-2011 12:44 PM
тАО01-19-2011 12:44 PM
Re: More diskgroup less EVA8400 performance?
That said, Best Practice says to put all your disks into 1 Disk Group. There are reasons to split your disks though, some political, some technological.
Steven
HP Master ASE, Storage, Servers, and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5, vSphere 6.x)
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NPP3 (Nutanix Platform Professional)
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тАО01-19-2011 03:48 PM
тАО01-19-2011 03:48 PM
Re: More diskgroup less EVA8400 performance?
one of the concerns in an "all disks in a single group" is the protection level, you can have a maximum of double protection, if you want to have more spare disk allocation you should create a second DG. On the other hand, if you leave unused space on a single group, this can be also used as protection level.
For 2nd Generation EVA's after 100 disks in a single group performance increase with adding disks was becaming almost flatline. I am not sure about the number in 8400 but if it is a fully populated EVA I should create 2 DG,
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тАО01-19-2011 10:36 PM
тАО01-19-2011 10:36 PM
SolutionHi Matias,
You can have your own reason to create multiple Disk Groups, but you should know the best practice and try to comply with it for best results.
I am attaching the Best Practices White paper for EVA configurations. Refer to page 6 for discussion on number of Disk Groups.
Hope this helps,
Rgds,
Taurian.
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тАО01-20-2011 04:59 AM
тАО01-20-2011 04:59 AM
Re: More diskgroup less EVA8400 performance?
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тАО01-20-2011 05:00 AM
тАО01-20-2011 05:00 AM