Philix T A [philixlinux at gmail.com] wrote
2) Dont create RAID for swap and / root partition (Not
Advisable)
I would avoid putting / or /swap on RAID0 partitions, but RAID1 should
not only not be a problem, it should be encouraged as a method of
recuperating from a spindle failure.
3) Swap Size size should be 2X the size of the Physical memory
That was the other millennium, when it was certain that our programs
used more Core/RAM than you had in your box. This is now, when you need
swap only when you can't schedule your process load to not over-demand
RAM, and you can't put more RAM in your box. In that kind of case, a
larger box is more cost-effective than swap. I make certain swap is
never used. Man 1 vmstat, look at the 'si' and 'so' fields, they should
stay zero.
4) Always partition which uses high read/write to the disk eg
/var/log /var/www/html and /home etc
I'm not certain I understood what you said. My advice on partitioning
is to group read-only (e.g. most of / & /usr) on partitions mounted -o
ro, and writable portions (e.g. most of var) on a separate partition so
the amount of fsck recovery is minimized. The OP asked about making a
single partition for everything, this is (approximately) what a Red Hat
default install will do. Making a RAID1 of everything is not a bad
idea, it's called a backup ;)
6) My experience had always shown if your apps had memory leak ,
expect Swapping to happen for sure, where reboot of the apps or the
system is needed
Buggy software (memory leaks included) should simply be avoided. Where
they can't be avoided, a crontab entry to kill & restart every hour (or
so). I'm not sure what the OP is asking.
It is my advice to post ONLY in plain text, not rich-text or html, to a
mailing list. If it is impossible to post plain-text, some won't see
your post and some who have a response won't send one since top-posting
is "the best way" to reply to html posts, and top-posting is an
abomination to many.
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