File size question

[Edward McCouch]

Hello all,

Currently I have a Oracle database server that has Online JFS. The OS is HP-UX 11.0 64 bit. After searching the forums and docs, I have found that:

HP-UX 11.00: JFS 3.3 Version 2: Max file size is 2 GB.
HP-UX 11.00: JFS 3.3 Version 3: Max file size is 1 TB.

According to http://docs.hp.com/hpux/onlinedocs/5971-2383/5971-2383.html the 11.0 JFS 3.3 Version 3 is the default version.

My questions are:

1. How do I determine the version of JFS 3.3?

2. Do I have to specify "-o largefiles" in the newfs command so that the Oracle DBA can create a file larger than 2 GB?


Thanks in Advance,
Ed

[Alan Casey]

Hi,

I know that you do need to specify -o largefiles, as I have had the same problem.

Not sure how to get the version

[Sebastian Galeski_1]

answer for 1st question use:
fstyp -v /dev/vgxx/lvolxx

hope it help

[Uday_S_Ankolekar · Accepted solution]

Hi,

Try fstyp command

EX: fstyp -v /dev/vg00/lvol4 will show you the version.

And yes you need to use -o largefile for filesize bigger than 2GB

-USA..

[Stefan Farrelly]

You dont need to use the -o largefiles on the newfs command, you can do it on-the-fly with the fsadm command (fsadm -o largefiles) - this saves you having to remount or re-newfs.

[Edward McCouch]

Ok, I have version 3 of JFS 3.3.

I know that I can extend the logical volume while it is still mounted, I was curious about the "-o largefiles" option b/c our DBA is "reorging" the database and wants to create files that are larger than 2 GB. When I intially created the space, I didn't use the -o largefiles b/c I thought that the max file size was 1 TB.

So the moral of the story is to create the spaces with "-o largefiles" so that my DBA can create files larger than 2 GB.

Thank you all.

[Bill Hassell]

You may want to download the bdfmegs program where the -v option reports not only the size in megs (rather than kbytes) but also reports on the filesystem type (cdfs, hfs, vxfs, nfs), the block and frag size for each filesystem, whether it supports largefiles and also for VxFS, the version (ver 2,3 or 4) for each filesystem.

ftp://contrib:9unsupp8@hprc.external.hp.com/sysadmin/coolscripts/

NOTE: ftp, not http. Feel free to borrow any of the scripts there as well as from the upper directories. The attachment shows a sample output for bdfmegs -v