NetApp

Changing the cache block size
You can change the block size of the cache on a virtual machine in order to optimize performance for your workload.
Before you begin 
The default block size of 4,096 bytes has been selected as optimal for most workloads. Check with your NetApp representative to determine if your configuration would benefit by changing the cache block size.
About this task 
You must make the change using the Flash Accel PowerShell cmdlets because this functionality is not available using the FMC. See the "Flash Accel PowerShell cmdlets" section for more information.
Note: Changing the cache block size formats the cache and destroys the existing cache contents.
Steps 
1.
2.
Import the Flash Accel PowerShell cmdlets.
3.
> Set-FACache -CacheAdminState Disabled
4.
Format-FACache -BlockSize <size> -BlocksPerChunk <number>
> Format-FACache -BlockSize 32768 -BlocksPerChunk 32
Note that Blocksize is in bytes and that BlockSize * BlocksPerChunk must be less than or equal to 1 MB.
5.
> Set-FACache -CacheAdminState Enabled
Parent Topic: Managing Flash Accel caching systems


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