On 17 Dec 2008, at 02:24, Grant wrote:
... Everyone seems to love
RAID1 though, and I'm a little confused as to why.
Everyone loves RAID1 because it "backs up your data".
Note the use of quotation marks.
You stated that data throughput was a bottleneck for your system, so
RAID1 may not give you the benefits you require.
Under RAID0 any given byte is read or written 1/2 from drive A & 1/2
from drive B.
Under RAID1 any given byte may be read or 1/2 from drive A & 1/2 from
drive B, but must be written completely to both drives.
Compared to a single drive:
RAID1 doubles sustained read speed (write speed unaffected).
RAID0 doubles sustained read AND write speeds.
Stroller.
