largfiles in hpux 11.0, 11.11, 11.23

[Lucy2009_1]

Hello,
I have HP-UX 11.0, 11.11.and 11.23 machines and SAN storages.Some of the file systems are not set to largefiles. There used to be an option in /etc/fstab to turn on largefiles but starting 11.11, it seems not needed. What is the best way to change file systems to largefiles? If using fsadm, does the fs need to be unmounted? Can /etc/fstab largefiles option be used instead of fsadm? Since I have many machines and many file systems to deal with,
I'd like to find a simple way to do this... Any input is appreciated.

Thanks,

Lynn

[Sandy Chen · Accepted solution]

Hi Lynn,

Please check if you have OnlineJFS. If you have it then the filesystem do not need to be unmounted.

You have to change it using fsadm. You can't just change the /etc/fstab with largefiles option.

Regards,
Sandy

[Yogeeraj_1]

hi Lynn,

As mentioned by Sandy, modifying the /etc/fstab will have no immediate effect on the file system.

You will have to run the fsadm command (if Online JFS is installed) or alternatively newfs command for new file systems.

The steps here would be:
#fsadm -F vxfs -o largefiles /mount-point

edit /etc/fstab and update nolargefiles to largefiles.

See also:
http://docs.hp.com/en/B2355-90950/ch06s02.html#bajbbeef


hope this helps!

kind regards
yogeeraj

[Sandy Chen]

Hi,

Check this links too, it should answer your questions

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=866569
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=83699

Regards,
Sandy

[whiteknight]

Lynn,

Here is the tips
For changing the largefiles bit on a JFS filesystem:
To convert an Advanced JFS filesystem:
fsadm -F vxfs -o largefiles /(mountpoint)

To convert a base JFS filesystem (filesystem MUST be unmounted):
fsadm -F vxfs -o largefiles /dev/vg0#/rlvol#

To mount the new largefiles capable file system :
mount -F vxfs -o largefiles /dev/vg#/lvol# /(mountpoint)

To set the correct /etc/fstab syntax :
/dev/vg0#/lvol# /ignite_depot vxfs delaylog,largefiles 0 2

WK
don't forget to assign points

[Lucy2009_1]

Thanks everyone for the input.