automount an cdrom

[Stephan_K]

Hi to All,

I want to mount an cdrom via the new automounter (autofs) and it should be umounted after an short period.
I put this entry in /etc/auto.direct
/cdrom -fstype=cdfs,ro :/dev/dsk/c0t1d0
The mount of /cdrom works now. But the automatic umount takes several hours after using it.
Does someone have ideas ?

TIA.
Regards
Stephan

[Pete Randall]

Stephan,

There's a -t option which specifies the duration in minutes that the filesystem should remain mounted when not in use.

See man automount.

HTH,
Pete

[Pete Randall]

Stephan,

Sorry, that's duration in seconds, not minutes.

Pete

[Stephan_K]

Hi Pete,

I found the option, but where/how to use it ?

Beside, the default is 5 minutes, why does it take several hours here ?
Regrads
Stephan

[Helen French]

Hi Koch:

It seems like a patch problem to me. If you are using HP-UX 11.00, then apply this patch - PHNE_25626 (s700_800 11.00 ONC/NFS General Release/Performance Patch). That may solve your issue.

Also apply the latest system patches and it's dependencies from HP-ITRC custom patch manager.

HTH,
Shiju

[Pete Randall]

Hi Stephan,

I would guess that either it's a patch issue, as Shiju suggested, or it's still in use. Try fuser and see if someone's still using it.

Pete

[Kevin Wright · Accepted solution]

If you have GlancePlus running on this box, that is probably the reason. Glance scans mount points every few minutes to get statistics and can cause automounted directories to remain mounted when not in use. Stop glance for a little while to test it.

[Stephan_K]

Hi,

Kevin found the reason. It was Glance which keeps the automounted filesystems mounted. Does anyone have idea to prevent this ?
Regards
Stephan

[Kevin Wright]

Sorry, but I was never able to fix the problem. I have the latest nfs patches, perhaps its the version of Glance. Maybe if you have software support you could call HP, then let me know what they have to say.

[Pete Randall]

Stephan (and Kevin),

My 11.0 N class server does not exhibit this problem. Glance version is C.02.40.000.
PHNE_22642 1.0 ONC/NFS General Release/Performance Patch
is the most recent NFS patch that I have. There do not appear to be any Glance patches.

HTH,
Pete

[Kevin Wright]

I have the problem on 10.20, with Glance version C.02.60.000, NFS patch PHNE_22288.

[Pete Randall]

Stephan,

I think an upgrade of your Glance software is in order. The December application CD has C.03.50.00. If you can install that, I think your problem will go away.

Good luck,
Pete

[Stephan_K]

Hi to ALL,

I opened an Call an the investigation by the Lab tokk a while ....

The result is:
Glance prevents umounting the filesystem/cdrom ! They fixed this problem for normal filesystems (autofs) but not for cdfs Filesystems.
The workaround for this should be:

"The workarounds available for the customer is to make the autofs timeout to
be less than 4 minutes, or else to configure the cd as an indirect mount so
it is not directly under /. This makes a difference because then the type
returned to mwa is autofs, which is ignored for the statvfs calls, not cdfs
which is not ignored. "

Perhaps this information helps somebody else.
Regards

Stephan