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September 26th, 2011 10:00
Firmware 5.1.1H2 and merging pools
It is my understanding that I can merge E, XV and XVS PS series arrays(SATA, SAS, SSD) into the same pool to utilize sub-volume level tiering. If this is true and I merge all the members into one pool will this degrade performance until the merge is complete? Also, would merging these different arrays into the same pool provide better performance by utilizing more spindles and bandwidth aggregation? All members are running RAID 50 configurations but we could possibly add members with different RAID configs, would this be a supported/best practice configruation?
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Lance Boley
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November 16th, 2011 11:00
To my knowledge there has not been anything that would prevent you from putting arrays with different drive types in the same pool in the past. With FW 5.1.1 H2 you can take advantage of the Automatic Performance Load Balancing.
Obviously the more spindles you can have to balance your workload across the better your disk IO should be, but every workload is different so it is hard for me to know for sure. The more members in a group the better you bandwidth should be as well, but that too depends on the workloads on the other end.