Jim Flanagan wrote:
Hi,
On my new 10.3 install I set up 2 drives in raid1 mirror, using software
raid in yast. All seems to be working fine except in Kinfocenter>memory
swap is shown as not available. Yast shows swap with an "*" beside it.
My partitions are set up as follows:
primary
/dev/md0 /boot
extended
/dev/md1 /swap
/dev/md2 /
/dev/md3 /home
/dev/md4 /share
I'm not that familiar with tweaking swap and have only set it up in
yast>partitioner before with no previous problems. This is my first raid
setup so there may be an issue with that, but again, all others
partitions are working fine. I tried editing swap in yast to format it
again as /swap but it failed with an error code -3004.
Why are you mirroring swap?
It offers no performance advantages, nor any significant
data-protection advantages, unless the data being processed
is both SUPER-valuable and very-ephemerial (such as data
being collected and processed in real time from sensors
in a non-repeatable or expensive-to-repeat experiment,
or say, you're processing stock-market feeds, in which
case 15 minute downtime = $100,000 fine, and significantly
more for each additional 15 minutes of downtime.
Other than something like that, or life-and-death
situations (in which case, you should be using QNX),
mirroring swap is both a needless waste of disk space
AND also hurts your system's performance for very
very little benefit.
If you can, I would split that swap mirror into
two separate swap partitions, and use both of them
independently.
Anyone know what this problem may be?
Many thanks,
JIm F
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