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What's Going on in our World

Mounting an ISO image in HP-UX

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...


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Extracting products from a large depot

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...


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Using Julian days for calendar calculations

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,...


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LAN speed test with no disk I/O

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...


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Show elapsed time for startup tasks

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...


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Problem with filenames

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,...


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DRD Strangeness

I've been working with DRD recently and have come across a couple of strange issues.   Issue #1: The first issue deals with the format DRD expects patches to be in. DRD cannot handle a "serial" or "tape" depot when installing products or patches on...


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Script For Reading HP-UX Itanium Root Disk EFI Partitions

I called this script "readpartition" but you can call it anything you choose. The purpose of this script was to fill in a missing piece of the HP-UX 11.31 Itanium root disk mirroring procedure. The output of this script is designed to be the input...


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New HP Certificates for SWA

SWA is a great tool to analyze installed patches and products and then return a catalog which is used to create new patch recommendations. However, some of the information about each server can be considered to be private and thus, a secure method for uploading...


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PowerPath LUNs report zero size

owerPath LUNs report zero size HP-UX Symptoms: LUNs presented from storage randomly report zero size with diskinfo. PV status is unavailable from pvdisplay or vgdisplay -v. inq command reports some LUNs are 0 length powermt display reports nothing First step: powermt check_registration Should report Expires:...


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