Post by Parwez Hamid
If you don't have access to IBM TechDocs, I can send the PDF version to
you direct. There are some important considerations if you are using the
z14 ZR1 as a coupling facility. This is covered in detail in the Tech Doc.
Short answer. customer supplied UPS.
The Internal Battery Feature (IBF) is an optional feature on many of the
IBM Z family processors. The IBF provides a local uninterrupted power source
and further enhances the robustness of the power design present in the
mainframe and increases a mainframe’s immunity to power line disturbance
. It provides battery backup power to preserve processor data during a
loss of power on all power feeds from the computer room. The IBF can hold
power briefly during a brownout, or for orderly shutdown if there is a
longer outage. IBM announced the IBM z14 ZR1 in April 2018. The
announcement included information about the single 19” frame that houses
the ZR1hardware components as well as a new Feature Code (FC), FC 0617 –
16U Reserved, which allows customers to install components other than ZR1
hardware inside of the 19” rack given that it meets a set of criteria for
The ZR1 will not be available with an IBF; clients requiring a battery
backup solution must consider an alternative battery backup solution when
planning for the ZR1
Although the IBF is offered on the dual frame z14, it will not be offered
as a feature option for the IBM z14 Model ZR1 processor. Clients with
sensitive data on a ZR1 will need to explore an external industry -
standard solution such as an Uninterrupted Power Supply (UPS) to address
concerns regarding back -
up generator lag - time.
IBM ZR1 Considerations. There is no IBF feature for any z14 Model ZR1 .
Battery backup, such as an external UPS solution or floor wide UPS
solution, can be used to provide power resiliency to the ZR1. A UPS
installed into the 16U Reserved Area will only be able to provide battery
backup to other
hardware installed in this area; ZR1 hardware, outside of the 16U Reserved
area, cannot be powered from a UPS installed in the 19” rack.
Battery backup power from an external UPS solution or floor wide UPS
solution can provide the ZR1 power in case of a brownout, or in the case of
a longer power outage, it will provide time to properly bring down
components running in the ZR1. This can become particularly important when
Coupling Facilities (CF) are housed inside of the CPC.
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