What is largest supported Filesystem and File size ?

[Robert Gamble]

A customer has requested a single filesystem of 400GB with containing very large files. The space will be coming from an EMC 3930.

Thanks in advance!

[Antoanetta Naghiu]

For HP-UX 11 & 10.20, if using largefiles option, the limit is 128G.
Use fsadmin -F FSType -o largefiles /dev/vgxx/lvolnn and mount -o largefiles /dev/vgxx/lvolnn /mount_point

[Rick Garland]

Fort 11.00, can go to 2TB. But check to see what patches, configfurations, etc. are required

[Andy Monks · Accepted solution]

jfs limits :-

Version 2
Supports 4GB filesystems and 4GB files on 10.01
Supports 128GB filesystems and 4GB files on 10.10 and above

Version 3
Supports 128GB filesystems and 128GB files on 10.20
Supports 1TB filesystems and 1TB files on 11.0 and above

Version 4
Supports 1TB filesystems and 1TB files on 11.0 and above

[Antoanetta Naghiu]

The 128G limit is for both hfs or jfs. To go to 1T you need JFS ver.3 or above, I think...

[John Palmer]

HP's release notes for HPUX 11 (see /usr/share/doc/11.00RelNote) say that the maximum size for a filesystem and file is 128Gb.

I did hear somewhere though that this was all that they could test at the time so I'm not sure if it's a hard limit or not!

Regards,

John

[Kofi ARTHIABAH]

check out thread:
http://my1.itrc.hp.com/cm/QuestionAnswer/1,1150,0x00a983667c40d4118feb0090279cd0f9,00.html

rev. file filesystem
10.01 2gb 4gb
10.10 2gb 128gb
10.20 128gb 128gb
11.0 1tb 1tb

[Fat Scrape]

Hi,

for hpux 10,10 10,20
Logical volume from 4Gb to 128 Gb HFS e JFS
file max 2Gb

for hpux 11.x 64bit

file > 2GB

[Tim Malnati]

11.x can handle the job, but there are some things you need to take some care with. vgcreate will not allow you to build anything this large with the DEFAULT parameters that it uses. The one to watch in particular is the max physical volumes parameter (default 16 if I recall correctly). I would also reduce the max logical volumes from 255 where this table space will be just a waste.

If the EMC drives are fully mirrored, I would strongly consider striping this volume. This requires some layout work on the EMC. 32K blocks are used internally on the EMC and should be your stripe size. Be sure to balance disk i/o paths too. There is really no need for Pathfinder if things are setup well to start with.