ext4, where?
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From: S. Checker on 30 Sep 2009 11:16 So I got my v13 discs in the mail, pulled an old server and whacked it right on there, no problems. I am a simple man (ask my wife) and so I had 4 partitions: swap / /home /tmp So I'm going through designating the partitions - ext4 for / and /home, wonderful. But what about /tmp? I wound up slapping ext2 on it, I just don't see the point of journalling my trashcan. Or is there a good reason to use ext4 that I am not seeing? -- But I stand on the shoulders of the people alongside whom I work. I also keep my feet flat on the ground, my shoulder to the wheel, and my eyes on the stars. It's a _very_ uncomfortable position. M. Andrews, Monk
From: jim dorey on 30 Sep 2009 12:55 S. Checker wrote: > Or is there a good reason to use ext4 that I am not seeing? i thought ext4 was still sorta still in beta, even experimental, so, no real reason to use it on any of them. maybe i'm just late on latest file system news, but, there's stuff that's on /tmp that should be kept...i think some mail programs keep the mail there instead of in /home/user. be a shame to lose something really really important by considering it a trashcan, though ext2 should be fine.
From: notbob on 30 Sep 2009 13:28 On 2009-09-30, jim dorey <skaar(a)ns.sympatico.ca> wrote: > > i thought ext4 was still sorta still in beta, even experimental, so, no Slackware 13 (latest rev) is set up to default to ext4 fs and Slack is known for its stability. Not sure how it will hold up in the long run, but I do know it takes forever to format, taking almost twice as long to format a 60G HDD as did ext3. nb
From: Aaron W. Hsu on 30 Sep 2009 15:32 On Wed, 30 Sep 2009 12:55:14 -0400, jim dorey <skaar(a)ns.sympatico.ca> wrote: > S. Checker wrote: > >> Or is there a good reason to use ext4 that I am not seeing? > > i thought ext4 was still sorta still in beta, even experimental, so, no > real reason to use it on any of them. maybe i'm just late on latest > file system news, but, I haven't heard much good about ext4. I don't use any of the EXT file systems for my servers except for EXT2 when I need some sort of compatibility with other Operating Systems. I have heard bad things about EXT4's model for doing file synching that leads to dangerous situations where the files can just disappear. For myself, I use JFS. > there's stuff that's on /tmp that should be kept...i think some mail > programs keep the mail there instead of in /home/user. be a shame to > lose something really really important by considering it a trashcan, > though ext2 should be fine. /tmp is a trashcan. Any program that stores data there that it expects to reside on the system across multiple reboots or even multiple days is quite quite flawed. Many UNIX-like Operating Systems that I have used clear out /tmp and possibly /var/tmp on every boot. Programs can expect to have the files available while they are running, but after that, not much is guaranteed. Aaron W. Hsu -- Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. -- C. S. Lewis
From: Grant on 30 Sep 2009 20:34
On Wed, 30 Sep 2009 13:55:14 -0300, jim dorey <skaar(a)ns.sympatico.ca> wrote: >S. Checker wrote: > >> Or is there a good reason to use ext4 that I am not seeing? > >i thought ext4 was still sorta still in beta, even experimental, so, no >real reason to use it on any of them. I used ext4 for linux kernel source + compile partition, nothing precious :) LKML posts about ext4 corruption still turn up, the filesystem is not ready for 'prime time' safe data storage yet. Haven't benchmarked it either, I don't see any point in changing yet. > maybe i'm just late on latest >file system news, but, there's stuff that's on /tmp that should be >kept...i think some mail programs keep the mail there instead of in >/home/user. Shouldn't do. Persistent variable data belongs under /var, not /tmp. > be a shame to lose something really really important by >considering it a trashcan, though ext2 should be fine. I don't have /tmp as separate partition on any machines here, if I did, ext2 would be good, certainly dodn't need a journal replay on power up. As Aaron wrote, one might clear /tmp on boot. Grant. -- http://bugsplatter.id.au |