Category Archives: Reference

Fixing missing devices (NO_HW) on HPUX

This last weekend, after some SAN changes, some of our HPUX systems experienced problems where either one of the hardware path’s to disk devices changed or the only path on some tape devices changed.  Of course, this wasn’t found out about until Monday morning…
A reboot would have fixed this — but I don’t like rebooting [...]

StorageTek 5320 Command Line Cheat Sheet

The StorageTek 5320 NAS Appliances are pretty neat devices.  I find it necessary to utilize the command line interface (CLI) quite often. Unfortunately, the documentation for the 5320’s CLI is pretty limited — at least I couldn’t find anything in the manual talking about each command.
So, for your enjoyment, I’ve summarized each command below.  [...]

Nice IBM RedPaper on SSD Drives

While the article is discussing the SSD drives as an option for IBM’s DS8000 Disk Storage system, it has alot of really good information about SSD drives.   It discusses topics such as  SSD Endurance and advantages over traditional spinning disks.