Day: April 28, 2020

IBM i Virtualization Enhancements

It’s been my favorite enhancement of this latest round of Technology Refreshes (TR) for 7.3 and 7.4.  Partially because it was my request to IBM for this enhancement.  So, let me tell you something about that. A while ago we needed an enhancement to IBM i for virtualizing tape libraries.  I put in a Request For Enhancement (RFE) into IBM stating I wanted to share a tape library between IBM i partitions while using IBM i hosting IBM i.  Currently, we can share a tape drive between partitions without moving the adapter from the hosting partition, however, we couldn’t share a tape library.  IBM accepted the RFE and this is part of the latest TR announced last week.  Any customer can put an RFE in, and I encourage you to put your requests in. I will tell you IBM listens to our community’s needs and delivers them with new TRs and OS release features.  I was part of the beta team testing this out and I can attest it works.…

Enhancing IFS Save Performance

We maintain many customer systems here at iTech, and one thing that seems to be consistent now across all of our customer environments is that system IFS (Integrated File System) directories are getting very large.  Many systems that we manage now have IFS root directories containing over 1 million objects!

Large IFS root directories present a problem from a save perspective in that they can take an inordinate amount of time to save using normal IFS save commands such as SAV, SAVBRM, and GO SAVE option #21.  On full system saves of systems with a large population of IFS objects, the save of the IFS can easily take up to 30% or more of the total system save time.…

HMCs might need a BIOS Flash Before Upgrading

This is documented by IBM and also in one of Pete’s newsletters from a while ago, but I saw it today on two HMCs, so I wanted to deliver this short tip.

Before doing a version upgrade on an HMC, make sure that the Machine Type-Model and Serial Number reported in the HMC GUI matches that which is printed on the sticker on the front of the machine. If it does not match, then per IBM do not attempt an upgrade.…

Transferring Files Using IBM i Access Client Solutions

Moving files between IBM i systems can sometimes be a cumbersome task, but a feature added to IBM i Access Client Solutions in recent versions allows you to transfer files from a single system to multiple systems. The main requirement is that you have to have IBM i NetServer started on the source system and all the target systems of the transfer.

This feature can be found in the Integrated File System function under General tasks.…