October 23, 200916 yr No use in wasting good drives if no benefit at all.....would a couple of velociraptors in raid 0 (total 600G) provide any dramatic speed increase for network transfers, as opposed to a 7200rpm drive? My unraid box is mainly movie storage for streaming - all gigabit - all wired. I have the drives, but not sure if I reallly should waste 2 ports on my raid card for a cache drive. Thx
October 23, 200916 yr Exactly. Even a 5400 IDE drive is fast enough to be used as a cache drive. If you really want to get your RAID 0 on, the only benefit in an unRAID server would be to use it a parity drive, but chances are 600 GBs isn't large enough for this purpose.
October 23, 200916 yr If you really want to get your RAID 0 on, the only benefit in an unRAID server would be to use it a parity drive The Return on Investment for RAID 0 on a parity drive is very small. So small that it's not worth it at this point in time. If the unRAID driver did RAID0 on it's own (via software rather then hardware), there would be a small benefit, but not that of an increase in speed as one would expect.
October 23, 200916 yr No use in wasting good drives if no benefit at all.....would a couple of velociraptors in raid 0 (total 600G) provide any dramatic speed increase for network transfers, as opposed to a 7200rpm drive? My unraid box is mainly movie storage for streaming - all gigabit - all wired. I have the drives, but not sure if I reallly should waste 2 ports on my raid card for a cache drive. Thx As others have mentioned, there should not be much of a speed benefit using RAID-0 cache drive. BUT, using a RAID-1 cache drive would be a safety benefit since you wouldn't lose data if one of the mirrored cache drives failed before the 'mover' could run.
October 23, 200916 yr Author Awesome. Thank you fellows. That was kind of what I was thinking...but just wanted to be sure. That being said - I did try it out last night and noticed nothing at all as far as transfers.... Moving on - now, removing a cache drive is fairly straightforward - yes? ie: simply stop, replace with new drive, then assign, then start up again, right? Ive never done a replace on the cache but since its not in the array, I would guess there arent any issues to watch out for....just a confirmation. Thanks fellas for the responses !
October 23, 200916 yr Moving on - now, removing a cache drive is fairly straightforward - yes? ie: simply stop, replace with new drive, then assign, then start up again, right? That's right.
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