QUOTE(cysun @ Nov 5 2011, 12:31 PM)
Absolutely right Ozak. I figured with the components I have, the biggest worry for me is the actual harddisks themselves. I run RAID on stripped across the 3 units of 1.5TB Green drives which run at a lower RPM and is designed to work 24x7. Having said that, no RAID setup is fool proof and best practice is to perform backups regularly, no running away from that. With my rig I can segmentize critical data and not-so-critical download data. That's why I keep my movies and music on my non-RAID standalone SATA disk, but all on the same rig. If you go the all-in-one box like Buffalo or D-link, you're limited in that sense.
Different folks, different strokes i guess.
You got to write down cleary the fool proof for your nas setup. And how to set it up. Like
1) protect the nas from power failure.
2) safelly to shutdown to prevent hdd spoil
3) test run your raid is function as what it should be
4) how to counter laziness, no time and forgetful backup
5) how if my nas is destroy by fire or steal by thieft if break in to my house.
6) do I have many stage backup.
7) does my nas running cost is high. How many watt does the total running cost per month.
8) can get my data easily anywhere.
9) do my nas and network will hang. If hang what can I do without I have to go back to reset it.
This is what I do before I setup my nas. I find the answer here, experience and from friend. I too have all my picture and video data in the nas. And it is very important that it 100% fool proof.
Hdd is not biggest worry compare other media.