Virtually no information here. Like all flavors Unix, I/O management (disk, tape, LAN) will have very different commands so migration will include basic system administrator training. Solaris administrators will need to spend a lot of time for the UNIX Rosetta Stone:
http://bhami.com/rosetta.html The Rosetta Stone will only name the command, not the actual steps so the HP-UX man pages are very important.
Another major difference will be LVM versus VxVM for disk management. While HP-UX has VxVM available, the vast majority of HP-UX installations will use LVM.
Are you moving simple workstations or very small servers? In that case, the hardware differences are not a major concern as they would be with massively large systems such as the SuperDome. Migration to large scale systems, probably using Service Guard clusters and virtual machines will definitely require extra training or consultants to handle the tasks.
And of course the applications will be the biggest tasks since none of the native code will run on HP-UX. New versions will be required along with moving the data to the new disks. Note that while the data may reside on a SAN system, it is not likely to be compatible, whether raw or file systems. SAN setup may be different for HP-UX depending on the storage system.
So without the model numbers for the Sun and HP-UX boxes, the disk storage systems, network setups, etc, all the advice will be simplistic. If the target HP-UX platforms have not been picked yet, then you will definitely need some good consulting help to make the plan successful.
Bill Hassell, sysadmin
