Replacing Drives to Grow a ZFS Pool

[msbxa]

Hi guys,
I am running FreeNAS v9.10 with Raidz2 6 * 2TB on Supermicro X10SL7-F (8 SAS port in IT mode).
I have reached to a maximum size and need to upgrade from 2TB to 4TB.

What are my options?

I have read the documentation but I have a little problem to understand the above "Note" part including to offline or replace the drive or both required.

Note: I have 2 SAS ports not used. Can I used them to speed up the upgrade or upgrade one drive at a time? Also found some people's used USB drive with 3.5 disk to replace or upgrade.

I would appreciate step by step guide. Thanks

 

[danb35]

The instructions at http://doc.freenas.org/9.10/freenas_storage.html#replacing-drives-to-grow-a-zfs-pool appear correct and complete. Was something confusing with them?

 

[nojohnny101]

i'm not really sure what you are confused about. if you want to keep the same vdev then you need to replace the drives and should follow these instructions from the manual:
http://doc.freenas.org/9.10/freenas_storage.html#replacing-a-failed-drive

you can use the free sas port you referenced to also follow this to grow the size of the vdev:
http://doc.freenas.org/9.10/freenas_storage.html#replacing-drives-to-grow-a-zfs-pool

 

[msbxa]

If I decided to use the 2 empty SAS port to replace some of the current port, do I need to put the drives back where the existing drives were? Example:

Let say the 2 empty SAS port are 6 and 7 and I will replace the drive in port 1 when I finished replacing and removing the drive in port 1, do I move drive in port 6 to 1 or just leave the new drive in port 6 and let port 1 be empty?

 

[danb35]

Doesn't matter. You can leave the drive on port 6, move it to port 1, or put it somewhere else entirely.

 

[msbxa]

Are you telling me drives sequence on port don't matters? What if decide by mistake move drive on port 1 to 2 and vice versa, does FreeNAS will not complain?

 

[danb35]

Are you telling me drives sequence on port don't matters?

That's correct.

 

[msbxa]

Ok thanks man appreciated.