Sata

odie2190 · Post by **odie2190** » Sat May 12, 2007 4:27 pm

Mirroring
from what i have come to a conclusion to is if you have 4 160 gig hdd all on mirror would that mean 12 gigs of out put from the hdds?

i dont really understannd how sata works (sorry)

top · Post by **top** » Sat May 12, 2007 4:56 pm

I don't understand what you mean by the output. SATA is just like IDE just a different cable and faster transfer rate.

I think you're talking about RAID, Mirroring is good for storage HD's, to where if you lose your data on the storage HD the mirror array has all that data saved for you.

Mirroring pretty much copies whatever you do the HD that's being mirrored.

I've never done it before, so in youre case, I'm guessing that 320GB is being mirrored.

bubba · Post by **bubba** » Sat May 12, 2007 9:06 pm

yup, SATA is jest a faster connection, the mirroring (raid 1) is a form of raid. With mirroring you get redundancy but your write times are slower. Now you can 'stripe' the drives, make two drives (or all 4) act as one (raid 0) and get faster write times but if one drive fails you lose it all.

Now you can do mirroring and striping (raid 0+1) where you stripe 2 pairs of drive and mirror one pair to the other.

Then there is raid 5, where all the drives act as one but a portion of each drive is allotted to index the data, so if a drive dies you can replace it (with an identical one) and the data can be rebuilt.

If you can do raid 5 I would have your OS on a drive by itself and then stripe the other 3, in this way you can redo the raid with disturbing the OS or vise-versa