Your customer wants to add Flash drives to their VNX array and use them as FAST Cache. They have specified that they want at least 150 GB of actual FAST Cache capacity on each SP. There are no Flash drives in the array and they want to follow EMC best practices on hot spares.
How can this be achieved?
A.
Five 200 GB Flash drives
B.
Three 200 GB Flash drives
C.
Five 100 GB Flash drives
D.
Four 200 GB Flash drives
shouldn’t the answer be C.Five 100 GB Flash drives ?
As that would save cost and provide required capacity as well.
Raid 5 ( 4+1 ) to be implemented being Flash Drive here. With total 400 GB ( 366 GiB actual and 183 GiB Flash storage per SP ) plus 1 hot spare.
Any suggestions?
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A is more reasonable. 4 for RAID1/0 and 1 for spare. ~400GB usable and ~200GB for each SP.
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