Re: Filesystem/disk performance problems
Am Dienstag, 11. Mai 2004 23:42 schrieb Paul English: I have a filesystem which is showing some very odd problems on FreeBSD 4.4. The system has one 60GB IDE drive for the os and some user partitions and one 800GB array of 120GB disks attached to a 3ware IDE-RAID controller. The latter is all one big partition. For most files and directories, copying/transferring them around is not a problem. But for a couple of very specific directories, copying them seems next to impossible. When I attempt to copy these, after a few minutes of *extremely* slow copying (1k/min), the system load shoots up and the system becomes virtually unusable. Maybe you want to read the following and try the patch: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=32920+0+archive/2004/freebsd-stable/20040509.freebsd-stable I'm not sure wether it patches cleanly against 4.4 but I'm sure you'll get assistance by the discussing people. -Harry In particular, working with one directory which is 11GB. Some subdirectories, even large ones copy fine from /usr1 (a partition on the 60GB disk) to /raid (the partition for the entire raid array). I can even make a tar of one of the non-working directories to /usr1, copy the tar file to /raid (with no problems), then when I try to untar it on /raid I get the same problem - very very slow (1k/min) and then the system load shoots up to 10+ and the system becomes unusable. In this case the data is going from /raid - /raid instead of from /usr1 - /raid, but it does not seem to help. I've also tried using some other utilities than simply cp in an attempt to fool the system - I've tried scp, and tar cf - . | (cd /raid;tar xf -) as well. There are no messages in dmesg or /var/log/messages that look at all related, and there are no messages that are accruing (for example while attempting a copy). Paul ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] pgp0.pgp Description: signature
Re: Filesystem/disk performance problems
On Wed, 12 May 2004, Harald Schmalzbauer wrote: Am Dienstag, 11. Mai 2004 23:42 schrieb Paul English: I have a filesystem which is showing some very odd problems on FreeBSD 4.4. The system has one 60GB IDE drive for the os and some user partitions and one 800GB array of 120GB disks attached to a 3ware IDE-RAID controller. The latter is all one big partition. For most files and directories, copying/transferring them around is not a problem. But for a couple of very specific directories, copying them seems next to impossible. When I attempt to copy these, after a few minutes of *extremely* slow copying (1k/min), the system load shoots up and the system becomes virtually unusable. Maybe you want to read the following and try the patch: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=32920+0+archive/2004/freebsd-stable/20040509.freebsd-stable I'm not sure wether it patches cleanly against 4.4 but I'm sure you'll get assistance by the discussing people. Thanks Harry - that certainly sounds applicable. I'm working on a system-wide upgrade to 4.9 right now so getting it to work with 4.4 may be a non-issue. It looks like I should plan on patching 4.9 though! I'm glad to see that 3ware finally has mention of a new beta driver for 4.8. Maybe they hired a FreeBSD person at last! Paul ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Filesystem/disk performance problems
I have a filesystem which is showing some very odd problems on FreeBSD 4.4. The system has one 60GB IDE drive for the os and some user partitions and one 800GB array of 120GB disks attached to a 3ware IDE-RAID controller. The latter is all one big partition. For most files and directories, copying/transferring them around is not a problem. But for a couple of very specific directories, copying them seems next to impossible. When I attempt to copy these, after a few minutes of *extremely* slow copying (1k/min), the system load shoots up and the system becomes virtually unusable. In particular, working with one directory which is 11GB. Some subdirectories, even large ones copy fine from /usr1 (a partition on the 60GB disk) to /raid (the partition for the entire raid array). I can even make a tar of one of the non-working directories to /usr1, copy the tar file to /raid (with no problems), then when I try to untar it on /raid I get the same problem - very very slow (1k/min) and then the system load shoots up to 10+ and the system becomes unusable. In this case the data is going from /raid - /raid instead of from /usr1 - /raid, but it does not seem to help. I've also tried using some other utilities than simply cp in an attempt to fool the system - I've tried scp, and tar cf - . | (cd /raid;tar xf -) as well. There are no messages in dmesg or /var/log/messages that look at all related, and there are no messages that are accruing (for example while attempting a copy). Paul ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
