jschuricht
Cadet
- Joined
- Sep 29, 2014
- Messages
- 3
I am considering trying Freenas as a replacement to hardware raid at home. Anyways what I am thinking of doing is replacing a 26x 2TB nearly full hardware based RAID6 array with larger disks. I need to replace my existing controllers and expanders so the thought is to just build some 8 core Supermicro atom systems with 32-64GB ECC RAM, 12x 6TB ZFS Z2, LSI IT enabled controller, ~100GB mirrored ZIL and 4 1Gb MPIO links to present the entire array to a single windows server. This would add some extra overhead in the multiple layers but should give me the least trouble of mirroring a native drive in windows.
The 2 big issues that I am running into from the threads I have read are the 80% usage limit for ISCSI with an even lower recommended limit and ISCSI performance over ZFS.
On the 80% limit, is it just a performance hit when going >80% usage or is there some other issue I haven't read about yet?
For the ISCSI ZFS combination, how bad does this hamper speeds? Most of what I read was on older versions of Freenas with 5400 or 5600 series Xeons so it doesn't quite apply.
The 2 big issues that I am running into from the threads I have read are the 80% usage limit for ISCSI with an even lower recommended limit and ISCSI performance over ZFS.
On the 80% limit, is it just a performance hit when going >80% usage or is there some other issue I haven't read about yet?
For the ISCSI ZFS combination, how bad does this hamper speeds? Most of what I read was on older versions of Freenas with 5400 or 5600 series Xeons so it doesn't quite apply.