I have a question about how best to divide things up in the new setup.
I'm thinking to replace this IDE drive with two SATA HDs. One as small
as I can get. Say 100GB or so and make that the boot drive. And a second
HD say 500GB or so and moving the LVM over to that.
Would it be better to move the LVM to a larger SATA drive and migrate
the boot drive on to a new small IDE HD?
No.
I've even thought to set it up
to boot from a flash drive. Not sure that would be wise either.
Only if you really doubt the integrity of your HD, or want to install onto
a system too small to include the kernel. Bootable flash drives are
invaluable if you have to get into a system that will not boot from the HD
for some reason. But make sure the flash drive will mount all HDs it
finds or be prepared to manually mount them after boot.
My question is is this a 'wise' thing. If not, why not and what would be
the better approach?
Mike,
My experience with both Windows and Linux is: the more partitions the
better. They not only allow you to organize all the files, but, more
importantly, any maintenance that needs to be done will take a much
shorter time. This is critical in Windows, but not so much in Linux. The
Linux books I have also say it is good to separate /var and /temp as these
are most likely to fill and separating them prevents the HD from being
inadvertently filled. They also agree that, if ever needed, it is much
easier to reinstall the system if you only have to clear the /boot, /usr
and / partitions. Their recommendations are: /boot (about 50-100MB,
depends mainly on the size of the kernel); /swap (twice the system RAM);/
(150-300MB); /usr (at least 300MB); /home (300MB for a single user is
okay, but >500MB is better); /var (200-300MB); /temp (200-300MB). Putting
the /boot, /, /usr partitions on one HD makes sense to me. All other
mount points would be on other HDs.
I have never heard or read of anyone advising one to get anything other
than the largest HD they could for the money they have. Why would you
want a 100MB SATA HD? Just for a small /boot? Partitioning the drive is
as good as separate drives if all you're concerned about is the size of
the /boot partition. More to the point, I have not seen any new SATA HD
less than 80GB. You are swimming upstream (to say the least) if you want
less than a GB of capacity in a SATA HD. Look at the $/GB for HDs and buy
accordingly. LVM does not require multiple HDs, so 1.5TB divided into
several partitions can still use LVM. LVM simply makes adding more HDs
easy. Having more than one HD simply means that you only stand to lose
the files on one HD at a time, instead of losing everything upon one
failure. RAID is the only insurance against HD failure, but most agree
that only servers really need RAID. Put your critical personal files and
hardware drivers on a Flash drive, if nothing else.
Hope this helps.
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