You are working on latency problems with a storage pool in your Vblock® System 340. After investigation, you decide that the FAST Cache must be expanded on the VNX.
What is required to accomplish this task?

Question

You are working on latency problems with a storage pool in your Vblock® System 340. After investigation, you decide that the FAST Cache must be expanded on the VNX.

What is required to accomplish this task?

Preetham Pakhala · Accepted Answer

The existing FAST Cache must be deleted and the entire cache re-created.

Preetham Pakhala · Answer

All additional EFD drives must be in the same storage pool as the existing FAST Cache drives.

Preetham Pakhala · Answer

A separate FAST VP cache is created and storage pools are migrated to it.

Preetham Pakhala · Answer

SP Write Cache must be disabled for all pools using FAST Cache prior to expansion.

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