From: Steve Fick (shf@TheWorld.com)
Date: Sat Feb 08 2003 - 12:55:40 EST
Hello,
I'm trying to understand why two Solaris 7 systems
have been intermittently failing to mount a ufs filesystem
during warm boot as well as after coming up to multi-user state.
The filesystem varies from one occurrence to the next.
More warm boots succeed in mounting all filesystems,
than fail.
Never more than one filesystem failing to mount, at a time.
When 'mount fsname' is used, it reports that the fsname
is already mounted, or busy, or too-many-mount-points
(I've abbreviated the error message). Oddly,
'df' with no argument fails to report the fsname as mounted;
but 'df /dev/dsk/c#d#t#s#' reports it as mounted--
but leaves blank the field in which the "Mounted on"
directory name should appear.
mnttab, 'mount -p' and 'lsof' say the fsname is not mounted.
Sometimes a 'umount' succeeds, and a following 'mount' will
then succeed. But sometimes 'umount' fails saying
the FS is not mounted. In this scenario, another warm boot
(shutdown -i6) has been successful, so far.
I opened a service request with Sun,
but have not gotten a terribly convincing
explanation or solution. For the time being
I've withdrawn the 'logging' option from /etc/vfstab entries,
in hopes this will make the intermittent problem go away...
though the problem did not make itself visible until
more than 30 days after the 'logging' option had been
added to vfstab and after the then most Recommended and
Security patches had been put in place, in December.
These systems are warm booted nightly from crontab
just before disk-to-tape backups are made.
Has anyone seen that 'df' behavior before and if so,
can you tell me about related cause/cure?
This is an E3000 and an Ultra 2 though I don't suppose
that is particularly key. All UFS filesystems,
no disk arrays, no hardware errors of any kind shown
in /var/adm/messages nor via iostat -E for any disk
in either box.
My apologies if this appears as a duplicate posting.
First posting was apparently (temporarily?) declined
after my ISP had changed my email address and made me look like
a non-subscriber to the mail list software.
Thanks,
Steve Fick
Unix System Manager
Facts and Comparisons / A Wolters Kluwer Company
www.drugfacts.com
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