Largefiles filesystem conversion.

[Gulam Mohiuddin]

Recently we have added and configured some new disks just to store data into our HP-UX Box running HP 11.0. but that time
we didn't put any entry into the /etc/fstab file and also didn't enable the largefile system.

Now we want to convert the file systems to Largefiles and also add an entry to /etc/fstab so that after any system boot up the files system should get mounted automatically.

Please check the steps we will be doing and let us know if anything is wrong.

Convert a non-large-files file system to large-file file system:

$ umount /u40 (Assume nobody is accessing this file system)
$ /usr/sbin/fsadm -F vxfs -o largefiles /dev/vg20/lvol01
$ mount /dev/vg20/lvol01 /u40

This following entry will be added into the /etc/fstab file to mount at bootup:

/dev/vg20/lvol01 /u40 vxfs rw,suid,largefiles,delaylog,datainlog 0 2

Thanks,

[melvyn burnard · Accepted solution]

looks good to me, but to confirm and add additional information:


Perform the following steps to convert an HP-UX 11.x VxFS filesystem
to accept large files:

1. Verify that AdvJFS is installed on the system:

A. swlist -l fileset B5118BA (for JFS ver 3.1)

--OR--

B. swlist -l fileset B3929CA (for JFS ver 3.3)

2. A. Perform this step if you are running Advanced JFS:

fsadm -F vxfs -o largefiles /[mount-point]

--OR--

B. Perform this step if you are not running Advanced JFS:

umount /[mount point]
fsadm -F vxfs -o largefiles /dev/vgXX/rlvolXX
mount /[mount point]

3. Edit /etc/fstab file to enable large files at boot time:

Change: /dev/vgXX/lvolXX /mount-point vxfs rw nolargefiles 0 2

To: /dev/vgXX/lvolXX /mount-point vxfs rw largefiles 0 2

[surendhar prakash.J]

Hi...

Your procedure is correct,And check what he said (whether you have On-line JFS (i.e advanced JFS)you can do it.

Best of luck

suren