topic Re: Filesystem Size Limitations in Operating System - HP-UX

Filesystem Size Limitations

Jim Naylor — Tue, 25 Jan 2005 13:48:52 GMT

Hello, I was wondering if there is still a maximum of 128 Gig limit to a single filesystem in HP-UX 11.0 and HP-UX 11i? Thanks.

Re: Filesystem Size Limitations

Scot Bean — Tue, 25 Jan 2005 13:53:23 GMT

Found this doc on your topic:
http://docs.hp.com/en/5971-2383/5971-2383.pdf

What you say is true for HFS filesystems.

For newer filesystems on VxVM, the limit is 1-12 TB.

Re: Filesystem Size Limitations

A. Clay Stephenson — Tue, 25 Jan 2005 13:55:16 GMT

It depends; the 128GB limit still applies to hfs filesystems but other than /stand you shouldn't be using hfs anyway. Vxfs filesystems have limits in the TB range now.

Re: Filesystem Size Limitations

Geoff Wild — Tue, 25 Jan 2005 14:10:47 GMT

See this thread:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=797509

Rgds...Geoff

Re: Filesystem Size Limitations

Bill Hassell — Tue, 25 Jan 2005 14:10:59 GMT

VxFS will shift gears as required to handle large amounts of data (hundreds of Gb) but if you plan on large files (> 2Gb), be sure to convert the filesystem using fsadm. Start by checking if largefiles are allowed:

fsadm /mountpoint

It will report: nolargefiles if they are not allowed. Use fsadm -o largefiles /mountpoint to enable largefile support. No reboot or remount needed.

Re: Filesystem Size Limitations

Jim Naylor — Tue, 25 Jan 2005 14:37:52 GMT

I forgot to mention that we are using HP OnLineJFS (Advanced VxFS) B3929BA. I noticed in the two links provided by response that the seemed to refer mostly to JFS 3.1 -> JFS 3.5 but not OnLineJFS.

Re: Filesystem Size Limitations

Patrick Wallek — Tue, 25 Jan 2005 14:47:38 GMT

OnlineJFS is irrelevant to this discussion. What matters is the JFS version you are running, or more clearly the JFS version of the LV as seen in the "Version:" line of output from "fstyp -v /dev/vg??/lvol??".

Re: Filesystem Size Limitations

Jim Naylor — Tue, 25 Jan 2005 14:51:31 GMT

Here is the output from the fstyp command:

# fstyp -v /dev/vgora_navis/lvora_navis2
vxfs
version: 3
f_bsize: 8192
f_frsize: 8192
f_blocks: 16006144
f_bfree: 1157258
f_bavail: 1148217
f_files: 289600
f_ffree: 289312
f_favail: 289312
f_fsid: 1074266114
f_basetype: vxfs
f_namemax: 254
f_magic: a501fcf5
f_featurebits: 0
f_flag: 16
f_fsindex: 6
f_size: 16006144

Re: Filesystem Size Limitations

Hoang Chi Cong_1 — Tue, 25 Jan 2005 21:35:05 GMT

Hallo Jim Naylor

As you posted the result:

vxfs
version: 3

Version 3 indicates JFS 3.1 version

Thus, with your question and the OS'version, the maximum filesystem'size will be here:

HP-UX 11.10:

Maximum Supported File Size 2GB
Maximum Supported File System Size 128GB

With HP-UX 11.i: Do not support JFS 3.1 version!
Only support from JFS 3.3 and upper....

Hope this helps
HoangChiCong

Re: Filesystem Size Limitations

support_5 — Wed, 08 Jun 2005 01:28:40 GMT

Hi all,

What is the maximum maximum size for a vxfs version 4 layout filesystem on a HP-UX 11.i server (using LVM and onlineJFS).

I think I read that it is 2TB, but I am not sure if that is true. Can someone else confirm?

Thanks!

- Andy Gray