While computing with mpqc2.3.1 (debian etch amd6a; dual opterons; 8GB ram ECC; raid 1; filesystem ext3; grub on its own partition):
Led of HD permanently lighted. Messages on screen: ATA: abnormal status 0x58 on port 0x1C5F ata3: command 0x35 timeout, stat 0x50 host_stat 0x24 ata 4: same as above for ata3 Trying: $ df -h sd 3:0:0:0 SCSI error return code 0x8000002 Additional sense : SCSI parity error end request: I/O error, dev sda, sector 47748992 Later: raid1 Disk failure on sd6, disabling device raid1 :sdb3: redirecting another mirror RAID1 conf printout --- wd:1 rd:2 disk1, wo:0, o:1, dev: sdb8 _______ I cold only switch power off because it did not respond to down commands. _______ Rebooting, the $ prompt was obtained without warnings. Then I looked at /etc/fstab and issued: #fdisk /dev/sda # p #fdisk /dev/sdb # p #df -h there was nothing wrong: both disks identical to before. ______________________________ Similar hanging already occurred on 3 August (it was already ext3 filesystem) during similar computation with mpqc. There was nothing wrong after rebooting and up to now there was no anomaly. I checked disks and ram. Before that, when using raiser 3.6 filesystem, I had many problems with debian while carrying out mpqc computations . Therefore, I changed to ext3. Thread computations with mpqc for without interruption many days are big stress to the system (mostly for memory because mpqc writes sparingly on HD). ___________-- Any guess at what that means? I naively understand it was failure by the OS, not failure of hardware. Thank you for reading this long report. Cheers francesco pietra -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
