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On Tue, 2007-02-06 at 09:26 +0200, Mikko Husari wrote: |
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> hi! |
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> |
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> i was wonderin (also tried my luck on perfomance-gentoo, |
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> but no one home), what kind of partition + fs table would |
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> be optimal on server and/or desktop. afaik, /usr/portage |
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> would be on its own partition, and perhaps reiserfs and raid0. |
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> distfiles should be on a different partition, so it would |
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> not be in the way of portage itself... but, what about other |
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> parts of gentoo/linux. and is journaling filesystem over |
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> striping raid just asking for trouble? |
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> |
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|
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In general, reiserfs is considered dead by the linux kernel guys, and by |
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it's last remaining maintainer in particular (see |
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http://linux.wordpress.com/2006/09/27/suse-102-ditching-reiserfs-as-it-default-fs/ for his email...) So, you probably want ext3 at this point. There will be an upgrade path from ext3 to ext4, when ext4 is stable. |
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|
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Running a journaled filesystem is completely orthogonal to the |
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underlying storage. You always want a journal on large filesystems, |
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because otherwise you will have huge (linear with the size of the |
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filesystem) fsck times. In addition, a journaled FS is safer than a |
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non-journaled one, w.r.t. data loss. |
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|
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Putting /usr/portage on it's own filesystem shouldn't make a huge |
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difference in performance, especially if it's on the same spindles as |
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other filesystems. /usr/portage is a high access file tree, with the |
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sole exception of syncing. Other than that, it's relatively low access. |
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Things like "emerge -auvDN world" hit the metadata cache fairly hard, |
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but that cache is designed to be fairly quick. So, putting /usr/portage |
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on it's own filesystem will generally only make your system less |
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flexible (even if you use LVM2, which you *definitely* should do). |
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|
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Personally, I run RAID5 on my system, rather than striping. It's almost |
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as fast as striping on all modern systems, and has the huge advantage of |
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being able to recover from disk failure (of which I've had 2 on that |
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system over time). With striping, if a disk goes, you lose everything. |
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|
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Personally, my partition table looks like this: |
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|
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/boot - 100M (or 100M + 2 * memory, if I use a swapfile) |
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swap - 2 * memory (if I don't use a swapfile) |
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/ - 10G |
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/home - The rest |
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|
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Except my file server, which has |
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/home - 10G |
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/storage - the rest |
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|
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I do put PORTAGE_TMPDIR in /home/portage, tho, because that can take |
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large amounts of disk over time. |
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|
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Daniel |
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|
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-- |
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