[linux-lvm] User count, general question for all y'all
mauelsha at ez-darmstadt.telekom.de
Tue Feb 16 15:18:37 UTC 1999
> I haven't experience any I/O deadlocks, but I'm using IDE disks and a
> 2.0.36 kernel with ext2 fses. Has anyone attempted using of the JFSes out
> there with LVM?
No, i didn't test with a JFS.
Only with reiserfs which worked o.k. so far.
Only the below mentioned restrictions applied.
BTW: i have not been able to test any performance boosts with reiserfs;
reiserfsck is far to slow to be usefull
P.S.: does somebody know about any Linux JFSes available for testing?
> At 07:22 AM 2/16/99 , you wrote:
> >> Are we all (on this list) actively using lvm, and in what
> >> configuration? How many of us are there?
> >I use it 8*)))
> >> Also, has anyone encountered deadlocks during heavy IO?
> >Yes, i did from the early 2.1.x times on.
> >The question is which Linux version you are using _and_
> >which aic7xxx version if any.
> >It turned out to be a mass i/o lock which can be seen without LVM too.
> >Things turned out to be better in the later 2.1.x and in 2.2.x.
> >A problem still stays which Stephen Tweedie and others are addressing right
> >with large quantity i/o 2.2.1 preferes allocation of buffer pages vs.
> >keeping process pages in memory making the system _very_ lazy ;*)
> >> I'm
> >> only using LVM at this point as a method of easy partitioning.
> >> No mirroring, etc. I suspect reiserfs is to blaim on my system,
> >> but I just thought I'd ask.
> >Mybe it's a big mkreiserfs forcing the metioned behaviour?
> Daniel Whicker (heimdall at mail.org)
Systemmanagement C/S Deutsche Telekom AG
Heinz Mauelshagen Otto-Roehm-Strasse 71c
Senior Systems Engineer Postfach 10 05 41
mge at ez-darmstadt.telekom.de Germany
+49 6151 886-425
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