With really large disk arrays, you can find instance numbers piling up very quickly, and worse, they can make path managers such as DynaPath, Power Path and Secure Path exceed their limits. This is especially true if you are deleting and re-adding devices. Fortunately, there...
Anyone who has written an interactive script has had to ask a yes or no question. And then script gets changed to handle UPPERCASE and lowercase. And modified again to check for just 1 letter such as y or n... And pretty soon, the code...
When you gzip (or compress) a file, the original plus the compressed copy will exist in the same filesystem until the compression is complete. Then the old file is removed, leaving the compressed version. The worst case for an uncompressible file is that twice the...
By default the e1000g network interface is set to auto-negotiation enabled, 1Gbps full-duplex. # ndd -set /dev/e1000g<instance> adv_autoneg_cap 0 # ndd -set /dev/e1000g<instance> force_speed_duplex <value> Value Setting Result 1 10Mb/s, half-duplex 2 10Mb/s, full-duplex 3 100Mb/s, half-duplex 4 100Mb/s, full-duplex I found this while reading...
Some applications are supplying ISO images rather than actual CDs or DVDs for installation. An example is Data Protector from HP. If this image is burned on a PC to a CD or DVD, the CD software may translate the image into Joliet or otherwise...
When working with large, multi-product depots such as the Internet Express collection, it is often desirable to extract a single product or small group of products to create a small depot. The technique is quite simple. Here are two examples: # swcopy -x enforce_dependencies=false -s...
Q: I need to determine days between arbitrary dates. I've seen epoch seconds as a possible way but this is limited 1970 through 2038 and converting between MDY forms and epoch seconds is fairly tricky. A: If all you need are the number of days,...
Q: I need a way to test LAN performance but I don't want disk I/O to slow things down. A: ftp can be used to exercise a network, probably the fastest handshake method without specialized programs. Here is a little known technique: Use the put...
When HP-UX boots up, more than two dozen startup scripts are run to initialize and start services and daemons. Most complete immediately, but some take a long time to complete. There is no timestamp recorded in /etc/rc.log (where the startup scripts record their activity) so...
I am getting: PuTTYPuTTY everytime I list a particular directory with ls or ll. It does not happen in any other directory and I can't see anything unusual in the directory so what is the problem? For most terminal emulators, there is an AnswerBack feature,...
