jenksdrummer
Patron
- Joined
- Jun 7, 2011
- Messages
- 250
Doing some testing with FreeNAS on my new server, I have a 3108 Controller (as well as a 3008 onboard). 3109 does JBOD mode as well as RAID mode. Tested with JBOD mode, SMART reporting works as it should; FreeNAS can see the disks exactly as they are. Placed it in RAID mode, made a bunch of R0 arrays. It's a LOT quicker. But, running smartctl reports information missing. Also of mention, I opted for the super-capacitor for the 3108, so it's cache is non-volatile..
All that said to ask....
RAID Controllers do SMART Polling, among a lot of other checks; as I suspect FreeNAS does as well; at least the critical ones pertaining to what should be considered a resilient/reliable storage OS. My curiosity is what advantage is there with FreeNAS polling SMART data over a RAID Controller? To that effect, couldn't one configure a Hardware RAID and use ZFS as a file system and still gain the advantages such as bitrot protection, checksumming, CoW, etc...
Thank you
All that said to ask....
RAID Controllers do SMART Polling, among a lot of other checks; as I suspect FreeNAS does as well; at least the critical ones pertaining to what should be considered a resilient/reliable storage OS. My curiosity is what advantage is there with FreeNAS polling SMART data over a RAID Controller? To that effect, couldn't one configure a Hardware RAID and use ZFS as a file system and still gain the advantages such as bitrot protection, checksumming, CoW, etc...
Thank you
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