Jay Grogan wrote:
The V120 has 4GB of RAM , on the HDS side we are in a RAID 5 on the LUN and not shairing any ports on the MCdata, but with so much cache we aren't close to taxing the disk.
Are you sure? At some point data has to get flushed from the cache to the drives themselves. In most of the arrays I looked at, granted this was a while ago, the cache could only stay dirty for so long before it was flushed no matter how much cache was in use. Also, if your workload looks sequential to the HDS box it will just push your data right past the cache to the drives themselves.
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