Hello fellas,
My system is a 8.0-RELEASE i386 with 6 hdd's and 1 S-ATA1 pci controller (SiI 3512).
The system has the following (more or less packages) on it:
the first 4 disks are in 2 raid1 mirror (gm0 and gm1) and the last 2 have their own mountpoints.
up to 5 days ago (wednesday 25th,2010) the disks were operating at ~30->35 MB write speed.
The Problem
yesterday (august 29th, 2010) I noticed that a copy process starts at 13 MB (instead of the usual 30MB) and instead of increasing, it fluctuates a lot (+/- 2-3 MB) and it decreases.
I ran some tests:
1) copy (with mc) between disks (from each to each) -> slow disk ~12-13 MB
2) copy from the network - FTP - (1Gb network) to (each of ) the disks -> 10MB write speed
3) copy from the network - SMB - (1Gb network) to (each of ) the disks -> 7 MB write speed
4) dd if=/dev/zero of=5GB bs=500M count=10 (usually gives me 56MB) -> 49MB (inconclusive test)
I couldn't see anything weird in /var/log/messages or in smartctl -A <disk>
One thing that popped into my head was to check for the CPU temp. It was 65 degrees centigrade (faulty cooler). The cooler was replaced and the temp dropped to 40 (confirmed by lmmon, healthd, mbmon, consolehm and fingermeter (the last one is where you out your finger on the radiator
)). The mobo temp was 38. again, confirmed by all of the above mentioned apps/method.
I'm quite out of ideas. Can anyone support me here pls ?
My system is a 8.0-RELEASE i386 with 6 hdd's and 1 S-ATA1 pci controller (SiI 3512).
The system has the following (more or less packages) on it:
Code:
xfce4
kde
pure-ftpd
bind9
apache
samba
cups
mysql
sqliteup to 5 days ago (wednesday 25th,2010) the disks were operating at ~30->35 MB write speed.
The Problem
yesterday (august 29th, 2010) I noticed that a copy process starts at 13 MB (instead of the usual 30MB) and instead of increasing, it fluctuates a lot (+/- 2-3 MB) and it decreases.
I ran some tests:
1) copy (with mc) between disks (from each to each) -> slow disk ~12-13 MB
2) copy from the network - FTP - (1Gb network) to (each of ) the disks -> 10MB write speed
3) copy from the network - SMB - (1Gb network) to (each of ) the disks -> 7 MB write speed
4) dd if=/dev/zero of=5GB bs=500M count=10 (usually gives me 56MB) -> 49MB (inconclusive test)
I couldn't see anything weird in /var/log/messages or in smartctl -A <disk>
One thing that popped into my head was to check for the CPU temp. It was 65 degrees centigrade (faulty cooler). The cooler was replaced and the temp dropped to 40 (confirmed by lmmon, healthd, mbmon, consolehm and fingermeter (the last one is where you out your finger on the radiator
)). The mobo temp was 38. again, confirmed by all of the above mentioned apps/method. I'm quite out of ideas. Can anyone support me here pls ?
