Filesystem mount options

[Herdip Kalare_1]

I have been advised to amend filesystem mount options by oracle, such that the ORACLE instacne manages the write to disk.

I issued the following command to dynamically alter the mpunt options:-

mount -F vxfs -o largefiles,remount,nodatainlog,mincache=direct,convosync=direct /dev/vx/dsk/scratchdg/scratchvol /scratch

When I the viewed the mnttab file, the new options had been taken but the original entries regarding delaylog is still present. Will this cause a conflict ?

Regards,
Herdip

[Steven E. Protter]

largefiles option is not supported in 11i and above. If newfs was done with largefiles set the mount command figures it out for itself.

I'm concerned about you saying the old options are still present. I am not comfortable with this.

I'd recommend making changes to /etc/fstab and restarting the system.

I'd like to see what the original mount instructions were so I could compare them to the new instructions.

SEP

[Herdip Kalare_1]

Steven,

The original entries were

/dev/vx/dsk/scratchdg/scratchvol /scratch vxfs delaylog,largefiles 0 2

Regards,
Herdip

[Steven E. Protter]

I see nothing in the original that is overridden by the modification.

Still, I favor /etc/fstab implementation.

This I'm, assuming is an 11.00 system.

SEP

[Devender Khatana]

Hi,

The mounted options can be changed online by using vxtunefs command as well for Vxfs file systems. The options specified here would override the entries taken by vxtunefs in /etc/vx/tunefstab.

Allthough I am not sure about the conflict here, but the options specified in command line shall be applied here as well as in case of tunefstab.

HTH,
Devender

[Dietmar Konermann]

Herdip,

none of your mount options (-o largefiles,remount,nodatainlog,mincache=direct,convosync=direct) change the intent logging. So why should delaylog disappear?

Valid intent logging options are log, delaylog, tmplog and nolog. But don't worry... the delaylog option is suitable in the vast majority of cases.

Best regards...
Dietmar.

[Herdip Kalare_1]

Hi,

The system is 11.11

I've looked at vxtunefs and this is related to the kernel parameters that drive sizings within the filesystem. Not really what I'm looking for.

I plan to remount after having amended /etc/fstab, but posted the question to query whether there would be a confilct between delaylog and convosync,mincache, and nodatainlog.

Regards,
Herdip

[Herdip Kalare_1]

Thanks Dietmaar,

I'll have a read around those options again. Basically, the mount options I am specifying have no bearing on intent logging and thus remain in /etc/mnttab.

Regards,
Herdip

[Herdip Kalare_1]

Thanks for the replys and input.

Regards,
Herdip