topic Re: large file size in Operating System - HP-UX

large file size

Shivkumar — Tue, 13 Dec 2005 00:23:22 GMT

Dear Sirs,

What is the defualt largest file supported on hpux 11i ?

Is there any config file where we need to enable this ?

Thanks,
Shiv

Re: large file size

Arunvijai_4 — Tue, 13 Dec 2005 01:03:54 GMT

Hi Shiv, Look at this thread and read paul's reply..

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=183536

Command to enable large file support,
# fsadm -F vxfs -o largefiles /

-Arun

Re: large file size

Tom Ward_1 — Tue, 13 Dec 2005 01:10:58 GMT

Hello Shiv,

The largest file you can have without large file support is 2GB. If you enable large file support you can go well beyond that. The command to enable large files is fsadm.
fsadm -F vxfs -o largefiles /mountpoint. Please see the man page for fsadm and fsadm_vxfs for more information.

Regards,
Tom

Re: large file size

RAC_1 — Tue, 13 Dec 2005 01:21:27 GMT

It depends upon what version of vxfs you have.

Re: large file size

Yogeeraj_1 — Tue, 13 Dec 2005 01:35:02 GMT

hi

Unless you enable 'largefiles', the maximum file size is 2GB.

If you current file system has not been created to support large files, you need to run a special command that will enable this.

configuration file that is involved here is:
/etc/fstab

hope this helps too!

kind regards
yogeeraj

Re: large file size

Yogeeraj_1 — Tue, 13 Dec 2005 01:37:54 GMT

hi again,

to enable largefile support on file systems that do not support it, you must do the following:

#fsadm -F vxfs -o largefiles /mount-point

edit /etc/fstab and update nolargefiles to largefiles.

hope this helps too!

kind regards
yogeeraj

Re: large file size

Jayasuntar — Tue, 13 Dec 2005 02:37:05 GMT

Hi Shiv,

Normally the largefile supported in 2GB.

If u enable largefiles support on the FS leval, then it is 2TB.
To enable the largefile support,

If u have online JFS then do

#fsadm -F vxfs -o largefiles /mountpoint.

If u dont have onlineJFS then do,

#umount /
#fsadm -F vxfs -o largefiles /dev/vgxx/rlvolx
#mount /dev/vgxx/rlvolx /mountpoint.

To check whether u have online JFS or not..

#swlist -l bundle |grep -i online

All the best..

Regards

Jay

Re: large file size

Cem Tugrul — Tue, 13 Dec 2005 03:12:36 GMT

Hi Shiv,
As an adition to other replies the link below
may help to you.

http://docs.hp.com/en/B3929-
90011/ch01s16.html

Good Luck,

Re: large file size

Cem Tugrul — Tue, 13 Dec 2005 03:13:47 GMT

http://docs.hp.com/en/B3929-0011/ch01s16.html

Re: large file size

Sยภเl Kย๓คг — Tue, 13 Dec 2005 05:34:47 GMT

Hi,

It depends on the filesystem which you are using.
VxFS can, theoretically, support files up to two terabytes in size. The maximum size tested and supported on HP-UX 11.x
systems is one terabyte. Large files are files larger than two gigabytes in
size.

You need to use # mkfs -F vxfs -o largefiles special_device size while creating the filesystem, for large file support. If you already created FS without -o largefiles, you can use fsadm with -o large option to change the current filesystem settings. And also you need to update /etc/fstab for the large file support.

Regards,
Sunil