Safest way to add SSD cache drive in existing pool

[sandiphw]

I am using a FreeNAS 11.1 server with 8 X 4TB SAS drive with mirrored pool and it is in production. Can you please suggest the safest way to add an additional SSD cache drive in it through GUI or CLI?

Regards,

Sandip

 

[hugovsky]

Try here: FreeNAS manual

 

[Chris Moore]

What kind of drive are you looking at adding? The wrong hardware will actually limit potential performance.

Sent from my SAMSUNG-SGH-I537 using Tapatalk

 

[danb35]

As @hugovsky says, the answer's in the manual; you'd use the Volume Manager. Select your existing pool under "volume to extend", select your device, and set the drop-down to "cache device".

 

[sandiphw]

Thanks for suggestions. Shall give a try..
@Chris Moore I am planning to add 240 GB SSDSC2KB240G701-Intel S4500 Series.

 

[Chris Moore]

Thanks for suggestions. Shall give a try..
@Chris Moore I am planning to add 240 GB SSDSC2KB240G701-Intel S4500 Series.

That is a 6Gb/s SATA SSD, it will limit your maximum bandwidth to the speed of the SSD.
What is the network connectivity? Here is a good video to explain the limitations:
https://www.youtube.com/watch?v=oDbGj4YJXDw