Date: Tue, 17 Nov 1998 01:42:36 -0500 (EST) From: grafe@lab12.ie.pitt.edu (G. Rafe) To: freebsd-mobile@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG Subject: Q: Why Constant/Regular Disk Activity? Message-ID: <199811170642.BAA07450@lab12.ie.pitt.edu>
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I recently upgraded my older Toshiba 220CDS (64MB RAM) to 2.2.7-RELEASE and
installed the same O/S on a new Toshiba 330CDS (32MB RAM).
Except for a few hardware differences, they are configured identically
[to the extent that I can tell].
My question has to do with a very regular and constant disk activity
I'm seeing on the newer 330CDS, which prevents the disk from spinning down
after some period of inactivity.
The older 220CDS behaves normally [i.e., the disk spins down after a bit];
the disk on this 330CDS, however, gets hit by some process every 30 seconds
[exactly].
Apart from the fact that it prevents the disk from spinning down normally,
the constant disk access is plain annoying when I know there shouldn't be any.
The report of "ps ax" on the 330CDS follows:
PID TT STAT TIME COMMAND
0 ?? DLs 0:00.02 (swapper)
1 ?? Is 0:00.04 /sbin/init --
2 ?? DL 0:00.00 (pagedaemon)
3 ?? DL 0:00.00 (vmdaemon)
4 ?? DL 0:01.10 (update)
26 ?? Is 0:00.00 adjkerntz -i
38 ?? Is 0:00.05 pccardd
76 ?? Ss 0:00.14 syslogd
86 ?? Is 0:00.00 portmap
157 v0 Is+ 0:00.41 -sh (sh)
492 v1 Is+ 0:00.02 /usr/libexec/getty Pc ttyv1
1178 v0 R+ 0:00.00 ps -ax
Running "top -s1" doesn't report anything obvious.
Any pointers on tracking down this mysterious disk toucher will be
appreciated greatly.
Gary Rafe
University of Pittsburgh
gerst4@pitt.edu
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