Re: [Xen-users] How to get rid of IO-Bottleneck?

[Rob MacGregor <rob.macgregor@xxxxxxxxx>]

2009/4/3 L.M.J <linuxmasterjedi@xxxxxxx>:
>
> Â First of all, ÂI will buy another SATA disk to setup a RAID5 instead of 
> RAID1, this will improve (a
> little bit) I/O performance or better, RAID0+1.

Note that RAID5 will have poorer write performance than RAID1.  For a
3 disk array each write requires 2 reads, followed by the parity
calculations, then the write.  Compare this to simply 2 write actions
required for RAID1.

-- 
                 Please keep list traffic on the list.

Rob MacGregor
      Whoever fights monsters should see to it that in the process he
        doesn't become a monster.                  Friedrich Nietzsche

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