begin  quote
On Wed, 05 Nov 2003 15:18:32 +0000
MAL <[EMAIL PROTECTED]> wrote:



> I'm really just asking if anyone has any recommendations for partition
> layout, what filesystems on what partitions, and what general
> structure would be fastest?

I'm a nut, I've had severe problems with harddrives the last year
(several broken ones.. ) so my suggestion is as follows:
'
/boot.  one on each drive, duplicate manually and make sure the system
can boot off either. Install bootloader on both. Just in case one
drive dies.

/home  :  backup and keep as small as possible, performance degrading
tasks shouldn't be accessing /home overly much anyhow. (bad tasks ;)

/  :  around 3-4 gb partition. perhaps more

/var :  'about 1 Gb, I usually have this as ext3 with data journal mode.
its not performance limiting my system, and I dang well want my logs
when things break.

/usr/portage : on its own partition, around 5 gb. use ext2 here. best
erformance, and its no valuable data, nothing thats even difficult to
recover.

if you want to use ccache, up this with another one or two gb for the
cache-dir, and move that here.

move temp-build to /usr/portage/TEMP or other, just to keep it on your
raided fast drive.


Other data (aka /mnt/store ;)  ,  recent tests suggest that JFS and XFS
both perform very good and with very low CPU overhead. Reiserfs has bad
case of CPU slaughter. 

http://fsbench.netnation.com/


> Would swap benefit from being on another disk?

Swap benefits from not being on a disc that isn't accessed by your
average workload where you need swap. But in a modern system, if
something needs swap for desktop use (Which i assume you have) ,then
something is wrong.(wine + your fave game leaking memory for example ;)


> Does fragmentation play a part over time?
Yep, over time it does.  oo are now having a beta program for a
defragmentation tool for ext2 and 3 , which I think may well become
quite interesting in the future. :-)


> What block size for the RAID-0 array?
Dunno. :)

see the threads earlier this month, or late last month, about
performance and partitionin. There were some tests and other nice things
there.



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