Onboard RAID

Wednesday, 05. 17. 2006  –  Category: all, vague

Poor old zest.lemonia.org dropped off air, apparently with a dead CPU or motherboard. Its standby box,
juice.lemonia.org was brought up with 15 hour old data (the backup sync cron’d at 0300, the failure happened at ~1800), but not before attempting to stick one half of zest’s mirror into juice. The root fs at /dev/ad1s1a was fine, [...]

Solaris fssnap and realtime processes

Wednesday, 12. 21. 2005  –  Category: all, vague

fsnap(1M) is most woo-esque for backing up filesystems, in a

snapshot filesystem
dump filesystem to tape
release snapshot
check dump

kind of manner.

It does, however, have problems with realtime priority processes. If the executable of such a process resides on the filesystem being snapshotted, things don’t work:
snapshot error: File system could not be write locked

Quick solution: [...]

air mass

Wednesday, 10. 26. 2005  –  Category: all, vague

The turbo on my VW Golf 1.9Tdi had become disappointingly non-functional. I could hear the exciting whizzing from the device as it spun up, but there was no boost. For a heavy car like a mark 4 Golf, this makes driving a pain, both around town and on long motorway inclines.
Getting the garage (who are [...]