Post the most significant problem your have solved on HP-UX and win up to 10 points....

[LucianoCarvalho]

Many system files permissions were changed. I have too boot the system with Support Plus CD, find out what files were changed and fix.

[John Meissner]

I was writting a script that I was having extreem trouble with. The script I was trying to write was going to rebuild all my non-vg00 filesystems that reside on EMC disk. The pretense for this is for Disaster Recovery purposes. John Poff of the Forums here provided me with a script that would do this. There were a few bugs and some manual work at the end but he definately saved my butt. I added a little to the script and now it's completely automated.

Thanks John!

[Shannon Petry]

I have quite an extensive list, but I will give a few... First though, understand that as a consultant, I deal with a huge variety of machines and problems, and I like to think Im almost as good as HP paid support, but not quite ;)

1. Company A called me and said that they could not boot the system. After going on site, the sys-admin told me that he thought he needed some disk space freed, so deleted the contents of /dev/vg00 and /dev/vg01.

I manually rebuild the LVM structures and got them running again. The company thought it would require a full reload, but it took about two hours of mknod commands to get it all done.

2. Early in CDE, I tought myself to Code desktop buttons and create associations. I have now more than 30 programs that work from drag and drop to file association, including all of the CAD/CAE apps used by the Automotive suppliers, Adobe products, GIMP, Netscape, and more.

3. Took a facility who was having performance problems on 3 K class servers running Oracle 8, tuned the systems for optimal performance and gave them an upgrade path to L class machines. So far, they have migrated 2 of 3 servers to L class as I recommended, and another is on order.

**NO I will not tell you how to re-create LVM structures with mknod, I need job security ;) **


Sincerely,
Shannon

[Geoff Wild]

One of the most significant problems I solved:

Replacing the root disk which had a bad extent in the swap partition.

We were notified via EMS that a disk was failing on our SAP QA DB server.

At first, it appeared that the mirror was bad (tested with dd, etc).

NOTE: no make recovery as no tape drive and I was waiting for an ignite server to be built.

Had HP come in, we were able to reduce the mirror on all but the swap - kept complaining about the bad extents....so HP just pulled the disk - replace it - then we tried to sync it with the primary - Oh no - bad extents in swap - can't do it - it was the Primary disk that had the bad extents!!!

Can't unmount swap - even in single user mode!

Was able to put the "old mirror" back, boot off of it...so we (HP and I ) replaced the primary - but we still couldn't lvreduce/lvextend the swap! Had to put the old primary back in, boot the mirror.

Somehow, after several attemtps, I was ablr to finally reduce the swap mirror - off of the primary.

Then built a new mirror with a new disk - and of course booted the server with the new primary.

Total time to fix - about 7 hours - if I had a make recovery tape - would have been less than 2.

Rgds...Geoff