US and NAS, should it be Raid1 + backup or two disk + backup??

Posted by: kiba on 27 March 2011

I',m using Unitiserver and NAS (Bufdfalo Pro dou 4 TB including two disk's 2x2 TB total 4 TB. Now running raid1, and just experienced a NAS auto reboot followed by a resync operation   in the mid of my prime time for replay, makes me thinking:

=> I can accept  missing one days rip-data as I have the cd as backup, so should I go for Raid1 or normal setup, using one disk for ripping  and then make a  backup during night time to the second disk in the NAS ??

 

Posted on: 29 March 2011 by Phil Harris

Hmmm ... I'd be questioning why the NAS rebooted automatically and resolving that as otherwise it'll keep doing it!

 

Basically your NAS *SHOULD NOT* reboot automatically and the fact that it needed to do a resync after it did would lead me to think that it wasn't a clean "shutdown and restart" but was in fact either a power glitch that caused the unit to effectively "die" or a NAS crash - neither of which I'd be happy with not getting to the bottom of...

 

Cheers

 

Phil

Posted on: 31 March 2011 by GerryMcg

Phil is right, but with regard to your point on back up, the Raid 1 is not foolproof. I also have a NAS with 2x2 TB but have added a separate 2TB external hard drive which I back up incrementally from my NAS. Quite easy to do on my Readynas Duo, as I only need to push a button on the NAS for this to commence.

 

When not in use I switch off the external hard drive as a further precaution.

 

Gerry

Posted on: 31 March 2011 by Mike R

Totally agree with Gerry, RAID drives, even Level 5 with redundant spares won't prevent you accidentally deleting files off the NAS.

 

A 2Tb USB drive will cost under £100 and you have to ask how much is your time worth to re-rip 300 plus CDs again?

 

Again, the NAS should not do a resync unless you've specifically asked it to do one on next restart. I'd check on the Buffalo site for the latest firmware (after a backup) http://www.buffalo-technology.com/support/downloads/

 

Mike

Posted on: 31 March 2011 by kiba

Thx for replies, The NAS was faulty and I have now return it. Having that many problems with the NAS I have decided to order a Synology 211+ and 2X2TB WD RE4-GP Enterprise, hope this is more effective.