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New Oops - thinking of RAID-5
Yes, with RAID-1 you lose half, RAID-5 you lose 1/3.
[link|http://www.aaxnet.com|AAx]
Expand Edited by Andrew Grygus Nov. 27, 2007, 07:25:52 PM EST
New Assuming 3 disks
Yup, you lose 1 disk out of however many disks you have in the raid set. As you add disks, you gain speed because you have more spindles, and both streaming reads / writes get faster. But rewrites get dramatically slower as you add disks.

So it really depends on your usage pattern of whether more disks are better or worse for you.

Of course, there are many other variables to think about if you were really pushing for performance.
     External storage recommendations for Linux? - (slugbug) - (10)
         eSATA is nice. - (Another Scott)
         Firewire good / USB bad - (crazy) - (1)
             Agree...firewire is better than usb2 but both work -NT - (bepatient)
         Thank you, everyone! - (slugbug) - (6)
             RAID is always a compromise. - (Another Scott) - (5)
                 Good info... - (slugbug) - (2)
                     Yup, RAID1 is simplest - (crazy) - (1)
                         Probably - (slugbug)
                 Oops - thinking of RAID-5 - (Andrew Grygus) - (1)
                     Assuming 3 disks - (crazy)

What was that "kneejerk" emoticon again?
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