This One Time, at Band Camp, Florian Philipp <[EMAIL PROTECTED]> said, On Fri, Feb 15, 2008 at 10:24:55PM +0100:
> On Fri, 2008-02-15 at 21:05 +0100, Wael Nasreddine wrote: > > Currently I have 2 partitions, a root and home partition, fortunately > > on LVM array, I was thinking of splitting them to "/, /usr, /var, /home, > > /usr/portage, /mnt/storage" the latter is to be used for Mp3z (around > > 12000) and movies... > > I was thinking of having the below filesystem schema: > > / : ext3 (-j -O dir_index,sparse_super,filetype) (Good mkfs > > options ??) > > /usr : xfs (I never used it so please suggest mkfs.xfs options) > > /var : // > > /home : ext3 (-m 0 -j -O dir_index,sparse_super,filetype) (Good > > mkfs options ??) > > /usr/portage : ReiserFS (3? 4? options??) > > /mnt/storage : ext3 (-m 0 -j -O dir_index,sparse_super,filetype) (Good > > mkfs options ??) > > Could you please comment/complete/change the schema above ?? I really > > would like to speed up my system a little bit, My system is entirely > > built on LVM array, and LVM is on DM-CRYPT so as you can see it's a > > quite slow due to the encryption... > > Oh one last thing, What do you suggest for a server? I have a Gentoo > > server and uptime can be over 5/6 months, everytime I reboot the > > server I have to manually scan the filesystem due to errors > > everywhere, any suggestions?? > > Thanks... > First of all, if there are filesystem errors, check your cables, your > controller and your disks. I don't think filesystem errors count as > normal behavior ... I should check that out, thanks > To your filesystem scheme: Why do you use xfs for usr? AFAIK XFS is good > at write speed but not worth the trouble when reading data and data in > usr is usually written once, updated every few months and read many > times a week (on rebooting Desktop PCs maybe once a day). I'd use > reiserfs3.6, maybe even without notail to make it more space efficient. I don't use XFS, curently I only have / and /home and I want to split it to more smaller partitions, I'm on LVM so it's easy, anyway I'm going with ReiserFS for /usr /var, would you please suggest mkfs.reiserfs options as I have nerver used ReiserFS-3 before (yep 5 years using linux and I've always used ext3...) also You didn't mention /var, would you say ReiserFS-3 is a good choice as well? > I'd also use ext2 on /usr/portage. These data don't need journaling. > Everything's got an MD5-sum to make sure it's unchanged after a crash > and you can easily resync. I found ext2 with 2k blocks to be faster than > reiserfs3.6, even on read-performance. I've already made the partition as suggested in [1] I used this command: $ mke2fs -b 1024 -N 200000 -m 0 -O dir_index I guess 1K block size would be faster?? > If I were you, I'd also use separate volumes for /tmp and /var/tmp > (without ccache) with xfs. What did you mean by 'without ccache'? I have ccache and I use it... > /home could use data=journal. Those data are precious and if I remember > correctly, this setting even brings an obscure (i.e. undocumented) speed > improvement with many parallel disk accesses, for example in a > multi-user environment. it's done, thanks, BTW what's your home partition FS? your choice is ext3 or reiserFS?? One last thing, since I'm on LVM resizing the partition is a must feature, in ext3 I use resize2fs which works quite nicely, is resize_reiserfs as reliable as resize2fs is?? [1]: http://gentoo-wiki.com/TIP_Speeding_up_portage#Make_A_Sparse_File_to_create_portage_in -- Wael Nasreddine http://wael.nasreddine.com PGP: 1024D/C8DD18A2 06F6 1622 4BC8 4CEB D724 DE12 5565 3945 C8DD 18A2 .: An infinite number of monkeys typing into GNU emacs, would never make a good program. (L. Torvalds 1995) :.
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