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тАО12-08-2010 03:35 PM
тАО12-08-2010 03:35 PM
Optimal RAID5 config in MSA P2000 G3
There should be an drive count for which the parity calculation and stripe writes are most efficient. As an example, the Hitachi AMS likes 4+1 or 8+1 RAID5 configs. You could configure a RAID5 group with a higher drive count to get more total IOPS out of it, but you get less IOPS per drive. If memory serves me right, the EVA5000 liked 7+1 for the RAID5 RSS set (don't quote me on that, it's just an example).
Thanks!
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тАО12-09-2010 12:15 PM
тАО12-09-2010 12:15 PM
Re: Optimal RAID5 config in MSA P2000 G3
I found the best practices document: http://www.hp.com/hpinfo/newsroom/press_kits/2010/JustRightITopk/MSA2000_G1_White_Paper.pdf
It makes no specific recommendations for number of spindles in an a RAID5 group. So I'll go on the assumption that it doesn't matter much, if at all.
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тАО12-09-2010 02:36 PM
тАО12-09-2010 02:36 PM
Re: Optimal RAID5 config in MSA P2000 G3
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тАО08-05-2013 01:58 PM - last edited on тАО12-11-2023 05:41 AM by Sunitha_Mod
тАО08-05-2013 01:58 PM - last edited on тАО12-11-2023 05:41 AM by Sunitha_Mod
Re: Optimal RAID5 config in MSA P2000 G3
Note:
The P2000 G3 can support a maximum volume size of 16 TB.
Supporting large storage capacities requires advanced planning because it requires using large virtual disks with
several volumes each or many virtual disks. To increase capacity and drive usage (but not performance), you can
create virtual disks larger than 2 TB and divide them into multiple volumes with a capacity of 2 TB or less.
The largest supported Vdisk is the number of drives allowed in a RAID set multiplied by the largest drive size.
тАв RAID 0, 3, 5, 6, 10 can support up to 16 drives.
тАв RAID 50 can support up to 32 drives
Please refer below document for reference
https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=c04168365
[Moderator edit: Updated the broken link.]
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тАО11-24-2023 11:15 AM - edited тАО11-24-2023 11:16 AM
тАО11-24-2023 11:15 AM - edited тАО11-24-2023 11:16 AM
Re: Optimal RAID5 config in MSA P2000 G3
why only 16TB? I have a P2000 g3 with 12x 18TB drives and 4 vdisks of ╦Ь30TB usable space each. Raid5, Raid0 and Raid10 all working fine.