[opensuse] Journaling FS
Has anyone ever added an external journal to a mature FS? Reiser or ext3? I'm wondering of adding a new logical volume on my LVM for each of my journalled file systems would be of use? How large should something like that be? Does anyone have experience with adding a journal 'after the fact'? Or with the journal being on a LVM -- Call 226682779489712859637199678587902423107 for a good prime! -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Thursday 2009 January 08 12:48:29 Anton Aylward wrote:
Has anyone ever added an external journal to a mature FS? Reiser or ext3?
Nope.
I'm wondering of adding a new logical volume on my LVM for each of my journalled file systems would be of use?
Not really. It's generally only done if you can make the journal device significantly faster than the data device. Even then, it's of questionable utility with write barriers in effect.
How large should something like that be?
For reiserfs: 33M, IIRC.
Does anyone have experience with adding a journal 'after the fact'?
No.
Or with the journal being on a LVM
All my reiserfs journals are on the data device, which is on LVM. -- Boyd Stephen Smith Jr. ,= ,-_-. =. bss@iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/ \_/
On Thu, Jan 8, 2009 at 1:48 PM, Anton Aylward <anton.aylward@rogers.com> wrote:
Has anyone ever added an external journal to a mature FS? Reiser or ext3?
I'm wondering of adding a new logical volume on my LVM for each of my journalled file systems would be of use? How large should something like that be?
Does anyone have experience with adding a journal 'after the fact'? Or with the journal being on a LVM
I have not done it, but I can see the benefit if the journal volume is on different physical drives than the primary volume. Is that you plan or is the LV for the primary volume going to be on the same drives as the LV for the journal? Greg -- Greg Freemyer Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer First 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Greg Freemyer said the following on 01/08/2009 04:35 PM:
On Thu, Jan 8, 2009 at 1:48 PM, Anton Aylward <anton.aylward@rogers.com> wrote:
Has anyone ever added an external journal to a mature FS? Reiser or ext3?
I'm wondering of adding a new logical volume on my LVM for each of my journalled file systems would be of use? How large should something like that be?
Does anyone have experience with adding a journal 'after the fact'? Or with the journal being on a LVM
I have not done it, but I can see the benefit if the journal volume is on different physical drives than the primary volume.
So can I. I can also see the advantage of having the FS striped across different physical drives too, but this is a laptop so that option isn't open.
Is that you plan or is the LV for the primary volume going to be on the same drives as the LV for the journal?
I'm getting sick of the FSCK in 11.1 "failing" and am looking at alternatives. One it consistently fails on is the ext3 drive that has a ... well equivalent of "tune2fs -c 5 ..." Even on a clean shut-down and clean FSCK the fact it HAS run a full FSCK seems to count as an error that blocks the boot. This is another anomaly that came in with 11.1. So I'm considering what alternatives I have. Yes, I know, using ReiserFS is one. -- out of memory we wish to hold the whole sky but we never will -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday, 2009-01-08 at 20:16 -0500, Anton Aylward wrote: ...
This is another anomaly that came in with 11.1.
So I'm considering what alternatives I have. Yes, I know, using ReiserFS is one.
Reiserfs and 11.1 is potentially a no-no for now. A strange combination of that and beagle can currently crash the machine. Better wait till they solve that problem. Or rather, try. You might be lucky and not bump into it, or /I/ be lucky and you do bump into it - as you can add a "me too" to my report ;-P - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAklmsQQACgkQtTMYHG2NR9XEagCfYS2vBJqvYHsOvmJQav0HdwmP BbsAoIdL8v0A6GTZUJE0keavM6276/xB =NWuE -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Anton Aylward wrote:
Has anyone ever added an external journal to a mature FS? Reiser or ext3?
I'm wondering of adding a new logical volume on my LVM for each of my journalled file systems would be of use? How large should something like that be?
Does anyone have experience with adding a journal 'after the fact'? Or with the journal being on a LVM
Adding a joural to make ext2 into ext3 is quite easy. I've never tried converting ext2 to Reiser. -- Use OpenOffice.org <http://www.openoffice.org> -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Thu, Jan 8, 2009 at 6:56 PM, James Knott <james.knott@rogers.com> wrote:
Anton Aylward wrote:
Has anyone ever added an external journal to a mature FS? Reiser or ext3?
I'm wondering of adding a new logical volume on my LVM for each of my journalled file systems would be of use? How large should something like that be?
Does anyone have experience with adding a journal 'after the fact'? Or with the journal being on a LVM
Adding a joural to make ext2 into ext3 is quite easy. I've never tried converting ext2 to Reiser.
James, I think he was talking about internal vs. external journaling. I assume all of the journaling file systems support both. Greg -- Greg Freemyer Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer First 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (5)
-
Anton Aylward -
Boyd Stephen Smith Jr. -
Carlos E. R. -
Greg Freemyer -
James Knott