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August 11th, 2017 18:00
Expanding existing Storage Pool on VMX5300
Hi.
Question. I have a fun issue for someone. I'm currently using a EMC VNX5300. I have a tray of 15 drives (all are same models, 820.618GB, SAS, 6Gbps, SEAGATE), 11 drives are configured in a raid5 (8+1). 10 drives + 1 hot spare, I want to add the last 4 drive but I don't think it will allow it since it's not (4+1), right?? I'd need one more drive to expand the storage pool, or could I unbound that hot-spare and use it as the 5th drive I need. as of now.. it's 4 drives just sitting there unused, I could create a raid5 (3+1) but I want the drives in the same storage pool so I can expand the pool and the single LUN that's using the storage pool. I'm running out of space with the 10 drives. can I do a raid5.... 14+1?
kelleg
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August 24th, 2017 13:00
You say 11 drives configured in R5 (8+1) and one hot spare - that's 10 drives - did you mean you have a 9+1 R5 and one hot spare?
On VNX 5300 to expand a R5 pool you need a minimum of 5 disks.
You could have a 14+1 R5, but you'd have to destroy the Pool first.
glen