Raid 1 being as fast as raid 0??? as someone has said somewhere else?
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"Not QUITE true... RAID1 can be just as fast as RAID0 for reading data, as it reads from both drives at once. Write performance in RAID1 is the same (actually, very slightly slower, but unnoticable on most machines) as a single drive as it has to write everything to both drives. I'd NEVER use RAID0 - just way too much chance to lose everything.
RAID5 is about the best to go for wherever possible though. You need a minimum of 3 disks, but it's a very fast, fault tolerant and industry standard setup."
Quote
"Not QUITE true... RAID1 can be just as fast as RAID0 for reading data, as it reads from both drives at once. Write performance in RAID1 is the same (actually, very slightly slower, but unnoticable on most machines) as a single drive as it has to write everything to both drives. I'd NEVER use RAID0 - just way too much chance to lose everything.
RAID5 is about the best to go for wherever possible though. You need a minimum of 3 disks, but it's a very fast, fault tolerant and industry standard setup."