I am looking to setup my computer with RAID 5 so i have 2x500GB drives and 1x1TB drive. I will be using hardware RAID via BIOS.
I realise only half of the 1TB drive will be used and i wont be able to use the other half but wondered, If i buy another 500GB drive at a later date will i be able to then remove the 1TB drive and pop in the 500GB drive as a replacement ?
Im guessing being its fault tollerant it should just rebuild on the 500GB drive but wanted to make sure before i commit myself .
Cheers Danraies, I thought that would be ok but wanted confirmation
Main reason i was considering RAID 5 is to increase read speed, I previously has RAID 0 (striped) but one drive died so wanted the same speed but fault tollerant.
I like the idea of the Raid1 and use the 1TB on its own but not sure, Do you know if Mirrored Array would still give as fast read speeds?
First of all, RAID1 will severely hamper your write speeds - there is no question about that. However, in read a RAID1 can theoretically be just as fast as RAID0 but whether you actually attain those speeds depends on the controller. Here's a thread that I followed recently with some interesting discussion: http://www.tomshardware.com/forum/250390-32-does-raid-i...
Conventional wisdom, though, says that you generally don't want to use a RAID1 for a boot drive. If you're booting then maybe another RAID0 but with regular backups to the 1TB.