Should I use contoller RAID or ZFS RAID?

[pingmonster]

Hi..

I have connect old HP SAN (direct SCSI) to HP Server and installed FreeNAS.
I also configured the SAN as RAID10 on controller so FreeNAS sees it as whatever HP Server sees.
And created a single ZFS volume from this presentation.

My question would be....
Would it be better to have SAN presenting as 14 JBOD to HP Server and configure FreeNAS to create RAID10 ZFS volume?
or
Should you leave it as it is....

 

[ProtoSD]

Post moved from HowTo section...

 

[paleoN]

Would it be better to have SAN presenting as 14 JBOD to HP Server and configure FreeNAS to create RAID10 ZFS volume?

Yes, it's better.

1. On a single disk ZFS can only report errors and not fix them.
2. ZFS makes some assumptions about its disks which means you will likely have performance issues with a single LUN presented.

 

[pingmonster]

Thank your for that.....+1