topic Re: jfs version info in Operating System - HP-UX

jfs version info

Sreer — Fri, 21 Jan 2011 07:55:17 GMT

Hi Gurus,
s per my knowledge the hpux file systems are mostly of vxfs.

and this vxfs is linked with Journaled filesystems.

JFS versions vary from releases to releases.

I need some deep data about this [ its for my learning.. since I face frequent file system size related issuses from my end users.]

thnx for your help.

mean for example i need to confrin the given file system ,say /u01 will support large files?

if so what is the jfs version it is having?

{ I remember to check the /etc/defaults/fs]

Rgds
Sree
Rgds
Sree

Re: jfs version info

Torsten. — Fri, 21 Jan 2011 08:06:26 GMT

The question in this case is if the file system was created with largefile option or not.

The fstab file will show it for example, fsadm too.

Re: jfs version info

ani007 — Fri, 21 Jan 2011 08:11:49 GMT

#fsadm -F vxfs /u01
largefiles

if large files is enable on the mount point, it will return largefiles.

Regards,
Ani

Re: jfs version info

Manix — Fri, 21 Jan 2011 08:13:08 GMT

Hello Sree !!

I guess all JFS versions supports "large files"but max limit varies & you need to mount the fs with the option as below.

fsadm -o largefiles

yes /etc/fstab will help for sure.

The following are Maximum file size of individual hp-ux operating system.
It depends on which system you are running.

Hope this will help ..limit has increased
much for later versions and OS series

HP-UX JFS Disk Layout Maximum Maximum
Release Version Version Supported File Supported File System
Size Size
===================================================
===============
10.20 JFS 3.0 Version 2 2 GB 128 GB
10.20 JFS 3.0 Version 3** 128 GB 128 GB
11.00 JFS 3.1 Version 2 2 GB 128 GB
11.00* JFS 3.1 Version 3** 1 TB 1 TB
11.00 JFS 3.3 Version 2 2 GB 128 GB
11.00 JFS 3.3 Version 3** 1 TB 1 TB
11.00 JFS 3.3 Version 4 1 TB 1 TB
11i JFS 3.3 Version 2 2 GB 128 GB
11i JFS 3.3 Version 3 2 TB 2 TB
11i JFS 3.3 Version 4** 2 TB 2 TB

Re: jfs version info

Jose Mosquera — Fri, 21 Jan 2011 08:29:48 GMT

Hi,

#fstyp -v /dev/vg/

If "f_flag" value is 16, your file system support lage files.

Rgds.

Re: jfs version info

Sreer — Fri, 21 Jan 2011 08:43:46 GMT

Thnx all for helping me by spending youe valuable time!

Few answers solved my querries.
remaining My concern is of about to check the JFS version installed in my server.

n4sv1 $ root:/root# swlist -l bundle | grep -i jfs
B3929DA B.11.23.0609 HP OnLineJFS (Server)
n4sv1 $ root:/root#

To be more precisely..

I want to check the JFS version !!!

Rgds
Sree

Re: jfs version info

Manix — Fri, 21 Jan 2011 09:23:06 GMT

Look @ my machine !!

# swlist -l product | grep -i jfs
JFS B.11.31 Base VxFS File System 4.1 for HP-UX

Thanks
Manix

Re: jfs version info

INH — Sun, 23 Jan 2011 04:34:04 GMT

Sree,

# swlist -l product |grep -i jfs

should tell you whether online JFS is installed in your system or not.

# cat /etc/fstab - check largefiles supported or not

# refer man pages ( lot of information you can see)

Regards,
INH