72 IBM ^ Cluster 1600 Managed by PSSP 3.5: Whats New
To add support for 64 bit to the High Performance Computing (HPC) set of
products, see 4.9, High Performance Computing software stack on page 91.
4.2 New software packaging
There have been a couple of small changes to how PSSP software is shipped.
The following sections describe the changes in more detail.
4.2.1 Two install images
There are now two mksysb images shipped with PSSP 3.5. The first image is the
same as the one that was shipped previously (updated with fixes for 32-bit kernel
and JFS root file system). The second is a mksysb image of a system with a
64-bit AIX kernel and JFS2 file systems. The new image is contained on CD 2 of
the PSSP set and can be used to install any node you want with a 64-bit
environment. The new image is called:
spimg.510_64 3.5.0.0 COMMITTED Minimal AIX 510 64-bit mksysb
When installed, this fileset adds a new mksysb image to your install/images
directory. Example 4-3 shows the new mksysb image file, kernel type, and file
system sizes of this new install image. All file systems are JFS2.
Example 4-3 New 64-bit mksysb image details
-rw-r--r-- 1 bin bin 240445440 Oct 16 11:03 bos.obj.ssp.510
-rw-r--r-- 1 bin bin 239892480 Oct 16 11:04 bos.obj.ssp.510_64
# bootinfo -K
64
# df -k
Filesystem 1024-blocks Free %Used Iused %Iused Mounted on
/dev/hd4 65536 57904 12% 1135 8% /
/dev/hd2 458752 84344 82% 12184 38% /usr
/dev/hd9var 65536 60396 8% 483 4% /var
/dev/hd3 65536 64968 1% 23 1% /tmp
/dev/hd1 65536 65160 1% 7 1% /home
/proc - - - - - /proc
/dev/hd10opt 65536 65164 1% 16 1% /opt
Alternatively, you can switch the symbolic links to enable a 64-bit kernel on any of
your 64-bit capable nodes after installation.
Note: PSSP 3.5 cannot run on any operating system other than AIX 5L
Version 5.1. IBM intends to support PSSP 3.5 with AIX 5L Version 5.2 in 2003.

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