Jack Malmostoso wrote:
On Sun, 22 Jan 2006 19:31:09 +0100, Jack Malmostoso wrote:
I have added two swap entries in /etc/fstab but have not
rebooted yet to try them (work in progress :()...
Upon reboot swap was activated:
[EMAIL PROTECTED]:~$ dmesg | grep swap
Adding 498004k swap on /dev/sda2. Priority:-1 extents:1 across:498004k
Adding 498004k swap on /dev/sdb2. Priority:-2 extents:1 across:498004k
Would it give any advantage to RAID the swap too or is it just good like
this?
As pointed out by others on the list, having swap on a raid partition
allows you system to survive a disc crash. It will, however, be a bit
slower than swapping on the harddrive directly.
Even more speed can be gained by specifying the same priority for both
swap partitions: eg:
/dev/sda2 none swap sw,pri=1 0 0
/dev/sdb2 none swap sw,pri=1 0 0
Which will tell the vm that it should span the swapped out data over the
two partitions, which will yeild higher read performance.
Regards
Anders Fugmann
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