DS8000 Service Documentation Version 7.5

MAP2240 Rack battery module set born-on date mismatch

One or more of the battery module sets in the rack has a born-on date that is more than two years older than the battery module with the newest born-on date.

About this task

A rack will have 0, 2, or 3 battery module enclosures present based on installed rack features and position in the storage facility.
A battery module enclosure will have one battery module set.
A battery module set contains three battery modules. All three battery modules are always replaced as a set.
The only reason the battery was split into three battery modules was to keep the individual weight below the limit for a single service representative to handle.
The three battery modules in the battery module enclosure are treated as one battery by the storage facility. The only reason the battery was split into three parts was to keep the individual weight below the limit for a single service representative to handle.
The born-on date of each battery module set in the rack must not differ by more than two years. This ensures that their charge/discharge characteristics, which change over time, remain compatible.

MAP2240 Section-1

Procedure

One or more of the battery module sets in the rack has a born-on date that is more than two years older than the battery module with the newest born-on date.
At the front of the rack, observe the battery born-on date label on each battery module enclosure.
Is there more than a two-year difference?
- Yes, go to the next step.
- No, exit this MAP. All battery module sets are within their limits.
Do you have a serviceable event that lists the location code of the specific battery module set to be replaced?
See the lower left of Figure 2 for the location codes (E10, E11, and E12).
- Yes, use the serviceable event FRU list to replace the battery module set.
- No, use the location code and go to MAP1230 Replace a FRU without using a serviceable event.
Figure 1. Battery module being removed from battery module set enclosure

Figure 2. Primary power supply rack locations (overview)