topic p4000 Node Raid Recommendation in StoreVirtual Storage

p4000 Node Raid Recommendation

jasp2k — Tue, 14 Jan 2014 16:19:23 GMT

Whats the recommended RAID level for 2 nodes in a cluster that serve SQL and VM's. Raid 5 or 10.

Re: p4000 Node Raid Recommendation

a_o — Tue, 14 Jan 2014 16:55:46 GMT

You need at least 3 nodes to do NR5.

Even with 3 nodes, you'll get better write performance with NR10 than with NR5.

NR5 is usually recommended for long term archival purposes.

Re: p4000 Node Raid Recommendation

oikjn — Tue, 14 Jan 2014 19:30:20 GMT

there are two raid levels to deal with. Hardware and network. In general, HP uses Hardware raid5 and network raid 10. HP is clear that network raid 5 is ONLY for archive data stores. As for hardware raid levels, it depends on your IO/Storage requirements and so its hard to say with the information you gave, but generally raid5 is OK. I have most of my VSAs at hardware raid5 because raid10 on top of raid10 is just sooo wasteful and I get the performance i need from raid5.