Make sure that you have dir_index turned on in ext3.
Type tune2fs -l /dev/?da? | grep features
For example, if /home is /dev/sda5 on your system type tune2fs -l
/dev/sda5 | grep features
If this feature is not turned on, small file performance on ext3 is
dirt slow . . . However turning it on does not speed up directories
that already exist. You will basically have to do a backup/restore.
Thanks,
Erik
On 6/5/07, Alexandre Shima <[EMAIL PROTECTED]> wrote:
Hello Helmut,
I'm running QmailToaster on a HP DL380 G3 Server (Dual Xeon 3.0, 2 GB RAM,
6x 73 GB SCSI 10K RAID 5, 64 MB w/battery) with RHEL4 ES (I had the same
servers configured with RAID 10 - same problem).
The filesystem is EXT3.
I'm trying to backup with HP Dataprotector 6.
I'm trying to keep another system (stand by server with same configuration,
connected to a gigabit LAN) updated with RSYNC.
The big problem is that it takes too much time to copy/sync the Maildir.
RSYNC takes about 8 hours just building the file list.
I have tried to copy data with scp, and I had the same poor performance.
I have read a lot about problems with EXT3. It looks like it does not have a
good performance with large structures like my Maildir directory, and that
ReiserFS or XFS will do better in this case.
I'm also considering to move everything to a storage, with the GFS
filesystem. At least I think I'll be able to load balance these servers
easily.
Thank you.
Alexandre
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