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Grading Telco & ISPs During the Blackout of 2003?
alt_cognito asks: "Our company runs natural gas generators here in Novi MI and when the power went out we didn't miss a beat. Nine hours later, our telco blinked and our T1 service went down despite the lines being run to different locations and ISPs (UUNet, LDMI). Service did not return until power had returned to the upstream offices. I was under the impression that these locations would be run by similar power generation. How did your telco/ISP perform?"
Oh yeah. I've always had minimum pingtime of about 30 seconds to render a damned page. And I'm on DSL.
Seems scoop isnt all what they thought. Guess they shold have chosen slashcode.
I would always get very nasty-looking fsck errors on my Solaris machines whenever they crashed. Although the messages looked nasty, the filesystems seemed to be fine after being repaired by fsck. The problem was that the fscks interrupted the boot process until manual intervention was given.
One day, I discovered a journaling mode for UFS. The journaling feature had been available since Solaris 7. See mount_ufs(1M).
You simply add logging to the mount options of your UFS volumes in /etc/vfstab. Reboot once so that you remount those volumes (presumably including your root partition) with journaling turned on.
That's all! I haven't had to fsck since I did that.