d3/linux & ext3 partitions - a problem?

#1

I recently upgraded to a new server, still running RedHat9 and D3. I
set up all the partitions as ext3. I'm getting constant messages about
"Sytem CPU (XX%) exceeds 25%". When I run top at the Linux prompt,
kjournald is always the culprit. Since I only run D3 and Vsifax, and
Vsifax is not that busy an application, I wonder if kjournald is runing
on the unmounted D3 partitions. Last time I shutdown D3, kjournald
dropped to almost no CPU usage. Does anyone else have this problem?
Should I shutdown D3 and convert the filesytems to ext2? I tried adding
the noatime option to the mounted systems in /etc/fstab, but that didn't
help at all.

Thanks,

Bruce

#2

Thank you,

I'd already looked up how to convert ext3 to ext2. I am suffering an
unbelievable performance hit, I was just worried about having to
reinstall from a backup if I made the change.

Bruce

Glen B wrote:

Quote:

Oh, BTW, if you don't want to reinstall and reformat for ext2:

1) stop D3 and anything else that may read/write on the partitions
2) sync and unmount the partitions
3) tune2fs -O ^has_journal /dev/<partition
4) remount the partitions
Result: you no longer have journaling

^has_journal disables journaling on existing ext3/2 file systems. ext2 and
ext3 are the same FS, except ext3 has optional feature bits set in the
superblock. Check out the other -O options in 'man tune2fs'. A carat
preceding an option turns it off.

Glen

"bruce ackman" <lewissupply (AT) copper (DOT) net> wrote in message
news:45769feb_5 (AT) newsfeed (DOT) slurp.net...

I recently upgraded to a new server, still running RedHat9 and D3. I set
up all the partitions as ext3. I'm getting constant messages about "Sytem
CPU (XX%) exceeds 25%". When I run top at the Linux prompt, kjournald is
always the culprit. Since I only run D3 and Vsifax, and Vsifax is not that
busy an application, I wonder if kjournald is runing on the unmounted D3
partitions. Last time I shutdown D3, kjournald dropped to almost no CPU
usage. Does anyone else have this problem? Should I shutdown D3 and
convert the filesytems to ext2? I tried adding the noatime option to the
mounted systems in /etc/fstab, but that didn't help at all.

Thanks,

Bruce

#3

tune2fs gave me error messages

bad magic number in superblock
couldn't find valid filesystem superblock

I tried the -f option with the same results.

Looks like I'll have to wait 'til this weekend. I'll delete and
recreate the partitions and then do a file-restore. Unless someone has
another idea?

Bruce

Glen B wrote:

Quote:

Oh, BTW, if you don't want to reinstall and reformat for ext2:

1) stop D3 and anything else that may read/write on the partitions
2) sync and unmount the partitions
3) tune2fs -O ^has_journal /dev/<partition
4) remount the partitions
Result: you no longer have journaling

^has_journal disables journaling on existing ext3/2 file systems. ext2 and
ext3 are the same FS, except ext3 has optional feature bits set in the
superblock. Check out the other -O options in 'man tune2fs'. A carat
preceding an option turns it off.

Glen

"bruce ackman" <lewissupply (AT) copper (DOT) net> wrote in message
news:45769feb_5 (AT) newsfeed (DOT) slurp.net...

I recently upgraded to a new server, still running RedHat9 and D3. I set
up all the partitions as ext3. I'm getting constant messages about "Sytem
CPU (XX%) exceeds 25%". When I run top at the Linux prompt, kjournald is
always the culprit. Since I only run D3 and Vsifax, and Vsifax is not that
busy an application, I wonder if kjournald is runing on the unmounted D3
partitions. Last time I shutdown D3, kjournald dropped to almost no CPU
usage. Does anyone else have this problem? Should I shutdown D3 and
convert the filesytems to ext2? I tried adding the noatime option to the
mounted systems in /etc/fstab, but that didn't help at all.

Thanks,

Bruce

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d3/linux & ext3 partitions - a problem?

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d3/linux & ext3 partitions - a problem? - 12-06-2006 , 08:22 AM

Re: d3/linux & ext3 partitions - a problem? - 12-07-2006 , 11:29 AM

Re: d3/linux & ext3 partitions - a problem? - 12-07-2006 , 04:47 PM