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Journal volumes - Raid groups or Storage groups?
I am looking for a best practice for creating journal storage. I'm using a VNX5400 with RP/SE CRR. For journaling I have 15 600GB 15K SAS drives that are to be configured as R5(4+1). If i create a storage group I have to manage LUN creation from the VNX. But, if i create 3 raid groups I can manage LUN creation from Unisphere for RP. Which method would be best?
Thoughts?
forshr
2 Intern
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Posted May 30th, 2014 01:00
RP/SE does have an auto-provisioning feature for journal volumes as you stated in the last part of your statement but you could just create a pool for all the journal disks which ensures you get the best overall distribution/image access performance across the journal disks unless you have a specific CG(s) which needs a certain level of performance and therefore a dedicated raid group.
Rich Forshaw
Consultant Corporate Systems Engineer - RecoverPoint & VPLEX (EMEA)
Data Protection & Availability Division
EMC2 Computer Systems (UK) Ltd