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Old 01-18-2008, 08:11 AM
John Hasler
 
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Default Re: Whither swap on system RAID0?

Laurenz Albe writes:
> Unless the new disks are faster thean the old disk you had, RAID will not
> improve your performance. What RAID does is protect you against disk
> failure.


RAID0 provides a performance increase by striping (if the disks are on
seperate controllers). It provides no redundancy. Quite the opposite: if
either drive fails you lose all data.

> If all the disk space in the new configuration is in that one RAID array,
> you have no alternatives: you will have to put the swap space on the same
> disk (array) as the rest of your system.


He can't put his swap _partition_ on the RAID0 array without _partitioning_
it, which he does not want to do.

Install a seperate IDE disk (you obviously already have one). Put the root
and swap partitions on it. That will avoid the hassles of booting from
RAID and make recovery easier when one of your disks fails.
--
John Hasler
john@dhh.gt.org
Dancing Horse Hill
Elmwood, WI USA
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