It's been 4 months since the release of the IBM XIV HAK 2.1.0 and we're back with a new release - IBM XIV HAK 2.2.0.
So what's new in this release? We won't bother you with all the changes and fixes - you can find the detailed list in the Release Notes document coupled with the software package. We would however like to point out that the new release supports a new operating system - Microsoft Windows Server 2012 R2 - an important step by itself. But the main feature of this release is related to xiv_host_profiler and the way 'analyze' operates.
Since the addition of xiv_host_profiler utility in the HAK 2.0.0 release, we see growing interest in this application. Administrators want to know that the system they are working on is configured right and how to improve their settings. Makes sense, doesn't it?
The problem was that the analysis was based on the latest microcode released, and this is not the common situation in the field. Following the famous "if it ain't broken don't fix it" approach, upgrading the storage microcode is not done as frequent as we'd like it to happen. So for example, although a microcode version 11.1.x is used, the administrator would get the analysis results of 11.2.0 (HAK 2.0.0) or 11.3.0 (HAK 2.1.0) which have different rules.
To solve this problem in the new HAK release we collect the microcode versions of the connected XIV storage and the analysis is based on these versions. So if your host is connected to 10.2.4 or to 11.2.0 or 11.3.0, you can expect different results. In the following example you can see the same host running against two different microcode versions with two different analysis results.
And what about testing your configuration against a different microcode version? For example, if you have an XIV system running microcode 11.2.0 and you want to upgrade to 11.4.0 - will your host configurations still be valid? So we added an option for the user to specify the microcode version he is interested in.
To download the IBM XIV Host Attachment Kit version 2.2.0 and the related documentation, please visit IBM Fix Central.You will need an IBM ID to download the files.
The IBM Host Software Group