[mythtv-users] Disk-drive hiccups
rcs at malibyte.net
Wed Jun 17 20:00:41 UTC 2009
Hi all -
Over the past several weeks, I have been having occasional instances of
partitions becoming inaccessible suddenly. This has only happened with
the two partitions I use for Myth recordings and for video files. Both of
these are large JFS filesystems, have been for over a year with no prior
problems. Both were initially 700GB partitions; I recently upgraded both
drives to 1.5TB units. I used the -c switch when doing the format (took
several hours on the 1.5T drives). Even so, this is still happening;
sometimes it happens after an hour or two of playing media, sometimes when
the system is idle (which is a real problem if the drive isn't available
when a recording starts (this happened once)).
It's not a drive problem (hardware) because it's happened with the 750s as
well as the 1.5T drives. I'm wondering if it's a problem with JFS...? I
don't want to go to ext3 because it takes a week (not literally, but it
seems like it) to fsck a big ext3 partition. Would anyone recommend that
I change over to XFS?
Another cause COULD be software. I had been running Ubuntu 8.10-x64, then
upgraded to 9.04. Soon afterward I started noticing this issue. Has
anyone else seen this since a Jaunty upgrade?
I'm using Jean-Yves' upgraded 0.21 binaries with VDPAU, which I'm quite
happy with. This is a NOT a Myth issue, because I can't seem to access
the involved drive outside of Myth, either, after this happens; the only
fix appears to be a reboot. I don't see anything in the system logs
which would clue me in as to WHY this happens, only that the OS can't
access the involved partition afterward.
I did notice that when this happened yesterday, the involved drive
designator changed over from /dev/sdb to /dev/sdd....! Curiouser,
curiouser! I've not seen that happen before.
Any ideas would be appereciated. Thanks.
Bob Sully - Simi Valley, California, USA
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