DragonFly kernel List (threaded) for 2004-03
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Re: Partition naming conventions
The comments are for general purpose, I believe you know all this Matt :)
On Mon, Mar 22, 2004 at 05:56:09PM -0800, Matthew Dillon wrote:
> If you have a large system, it is often a good idea to separate
> out oft-written directories such as /usr/obj, and to make /tmp
> larger. /var/tmp is usually made a softlink to /tmp.
The alternative for /tmp is to have lots of swap and MFS for /tmp.
This is often faster and avoids the lots of old crap in /tmp problem.
In that case you should make /var/tmp its own partition. In general
/tmp and /var/tmp as world writable locations should be on partitions
on there own. Making /usr/obj a filesystem of its own has the advantage
of faster cleaning -- just unmount, newfs and remount it :)
[snap]
> As a point of reference, here is how I have the main DragonFly machine
> setup:
>
> crater:/usr/local/www> df
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/da0s1a 128990 95894 22778 81% /
> /dev/da0s2e 13419070 119686 12225860 1% /news
> /dev/da0s2f 13419070 501394 11844152 4% /rdbms
> /dev/da0s2h 13419070 1234660 11110886 10% /ftp
> /dev/da0s1f 257998 46604 190756 20% /tmp
> /dev/da0s1h 12783794 3214364 8546728 27% /usr
> /dev/da0s2g 13419070 2700 12342846 0% /usr/local/www/site
> /dev/da0s1e 257998 83320 154040 35% /var
> /dev/da0s1g 1032142 1896 947676 0% /var/spool
> /dev/da1s1e 4129310 1493872 2305094 39% /usr/src
> /dev/da1s1f 66437000 443838 60678202 1% /cvs
> procfs 4 4 0 100% /proc
>
> e.g. the machine does a lot of mail routing but does not have many
> actual accounts, hence /var/spool is broken out. The machine runs
> a significant web server hence /usr/local/www/site. The machine
> runs a news server hence /news, and an ftp server hence /ftp. I
> made the root too small (128MB isn't quite sufficient for comfort).
Well 128 MB leaves enough space for a backup kernel with modules, but not
more :)
Another advantage of having /news and /var/spool is to allow smaller
block sizes since those filesystem tend to have mostly very small files
and that's why many Linux NNTP admin tend to prefer ReiserFS :)
Joerg
>
> I backup all of these partitions independantly... in fact, my backup
> policities pretty much governed how I set the partitions up.
>
> -Matt
> Matthew Dillon
> <dillon@xxxxxxxxxxxxx>
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