I've spent most of the weekend trying to install AIX 5.2 on a used IBM
RS/6000 7025 F50 server. Initially there was a hardware problem (loose
cable I think), but finally I got the system up and running.

The machine has 3 x 4.5 Gb disks. When I installed the OS, I selected
all 3 disks for installation. I was rather surprised it never gave me
any chance to select partition names, sizes etc. But once installation
was finished I now have this situation.


# df -g
Filesystem GB blocks Free %Used Iused %Iused Mounted on
/dev/hd4 0.02 0.01 62% 1484 19% /
/dev/hd2 0.93 0.01 99% 26767 11% /usr
/dev/hd9var 0.02 0.01 43% 451 12% /var
/dev/hd3 0.02 0.02 4% 52 1% /tmp
/dev/hd1 0.01 0.01 4% 18 1% /home
/proc - - - - - /proc
/dev/hd10opt 0.02 0.00 100% 584 10% /opt
/dev/cd0 0.56 0.00 100% 292579 100% /mnt

Ignoring the 560 Mb cdrom which I've got mounted on /mnt, the total
disk space allocated seems 1.02 Gb, which is not a lot considering the
disks have a total capacity of 13.5 Gb. I believe the swap partition
is 512 Mb in AIX 5.2, but that still leaves another 12 Gb unaccounted
for.

As someone who knows Solaris reasonably well, this seems odd. Perhaps
someone can explain to me what is happening here.

BTW, does anyone know if the 7025 F50 is a 32 or 64 bit machine?


--
Dr. David Kirkby,
Senior Research Fellow,
Department of Medical Physics,
University College London,
11-20 Capper St, London, WC1E 6JA.
Tel: 020 7679 6408 Fax: 020 7679 6269
Internal telephone: ext 46408
e-mail davek@medphys.ucl.ac.uk