Max logical volume size and file system size on HP-UX 11.00

[Ponce]

I'd like to know what is the maximum size of a logical volume and a file system using default parameters (physical extend 4Mb and FS block size 1024).
Which parameters could I change to increase this max and what is the link between each of them?
Thanks.

[Stefan Farrelly]

HFS Supported File and File System Sizes
....... Maximum.. Maximum
HP-UX.. Supported Supported
Release File Size File System Size
10.01....... 2 GB ........... 4 GB
10.10....... 2 GB ......... 128 GB
10.20*.... 128 GB ......... 128 GB
11.00*.... 128 GB ......... 128 GB
11i*...... 128 GB ......... 128 GB
* On these releases it is possible to exceed the 128 GB limit to 256 GB, but it is not supported.
JFS (VxFS) Supported File and File System Sizes
....... ....... ........... Maximum.. Maximum
HP-UX.. JFS.... Disk....... Supported Supported
Release Version Layout..... File Size File System Size
10.01.. JFS 2.0 Version 2** .... 2 GB ........... 4 GB
10.10.. JFS 2.0 Version 2** .... 2 GB ......... 128 GB
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
* PHKL_22719 is needed to avoid mount problems if extending or creating file systems beyond 128 GB.
http://docs.hp.com/hpux/onlinedocs/5971-2383/5971-2383_top.html

[Stefan Farrelly]

The extent size you use is controller when you create your VG. The VG options for max numbers of LV's (-l) , PV's (-p) and max_pe (-e) and pe_size (-s) control how big you will be able to create an Lvol up to the physical limits in my earlier post.

Basically, to create huge lvols you need a very large pe size (-s) and max_pe size (-e) and keep the number of lvols (-l) and physical vols (-p) as small as possible. If these are too large this will reduce the max size of an Lvol you can create. Its a little complex, you will probably need some trial and error on your VG create and subsequent lv create until you can successfully create an lvol to the very large size you want.