Just last week I had a discussion with a z/VSE customer about the new IBM zEnterprise BC12 (zBC12) mainframe and the z/VSE hardware support. This blog entry gives some links to related information. The customer is running z/VM 5.4 with z/VSE 5.1 guests on an IBM System z9 server. He may consider to migrate to the zBC12 with the most current software level (for z/VM 5.4 and z/VSE 5.1) and may be later to z/VM Version 6. z/VM Version 6 only supports z10 or zEnterprise processors. The latest z/VM release is z/VM 6.3 available since July... [More]

Etiquetas:  support zbc12 hardware zvm vse migration

Today I am late. In April  I posted already some information about z/VSE's SCSI support. We are getting more and more customer interest in that storage option. Therefore I want to give some more details about our SCSI support today. z/VSE supports SCSI devices since 2005 native (in LPAR) as well as in z/VM guests. Yes, z/VM support SCSI devices too and Linux on System z since SCSI is supported on the mainframe. z/VSE supports SCSI disk devices only, such as the IBM Storewize V7000, IBM XIV Storage System,... [More]

Etiquetas:  migration scsi vse

I accompanied many z/VSE migrations to new releases or new hardware over the last years. In some cases we were involved after the migration, because the system didn't meet the expectations. In nearly all of those cases performance data of the system prior to the migration was not available, such as CPU utilization or I/O rates. Therefore I recommend to measure the resource consumption (CPU utilization, I/O rates, ...) regularly, Not just, if you plan a migration, but also to detect e.g. resource shortages, growing workloads and for... [More]

Etiquetas:  performance migration vse measurement

This blog entry may provide useful information, if you are planning to migrate to a new IBM System z server. Some of our customers are running on unsupported VSE releases. These unsupported releases range from z/VSE 4.2 down to VSE/ESA 2.3. I know a few that are still on VSE/ESA 2.3, which is unsupported since nearly 12 years now. Please try to migrate to a supported release - z/VSE 4.3 or better z/VSE 5.1. Even on an unsupported release you may be able to run such a VSE release on the latest System z hardware. My... [More]

Etiquetas:  migration system_z server vse

This blog entries briefly gives a few tips, that might be useful, if you plan to upgrade to a new processor, such as the IBM System z10, the IBM zEnterprise 114 (z114) or the IBM zEnterprise EC12.   As you know from earlier posts I recommend to migrate to the latest z/VSE release - z/VSE 5.1- to get full support of the new processors. z/VSE 4.3 supports all above processors too.   If you are already on z/VSE 5.1, you just need to verify, if you have required PTFs applied - see PSP bucket for the target processor.    In general please do not... [More]

Etiquetas:  migration vse processor

 Yesterday I informed you about our latest Recommended Service Level (RSL). Besides the IBM service it is also important to monitor the latest service level of your vendor products and follow their recommendations.    If you are migrating to z/VSE 5.1, please do not just ask your vendor for z/VSE 5.1 PTFs, please ask for the latest z/VSE 5.1 related service level of your vendor software.   I recommend to check for important service news of your vendor software before the switch to z/VSE 5.1 production as you would do for IBM HIPER service.   

Etiquetas:  service migration vse vendor