Synchronizing display IDs

This section discusses how to synchronize display IDs in an IBM Storage Scale System 3200 system. Sample output in this topic might not match the output produced on your system.

Some IBM Storage Scale System 3200 disk enclosures have a two-digit display on their environmental service modules (ESMs). This display is visible from the back of the enclosure. When configured correctly, the two-digit display will be the same as the U location of the enclosure within its rack. mmsyncdisplayid sets the display on the ESMs to match the locations of the enclosure as defined by the component configuration. Here is an example:

$ mmsyncdisplayid all
$ mmlscomp --type storageenclosure
 
    Storage Enclosure Components
 
Comp ID  Part Number   Serial Number  Name                 Display ID
-------  -----------   -------------  -------------------  ----------
      1  1818-80E      SV12345001     1818-80E-SV12345001  21
      2  1818-80E      SV12345007     1818-80E-SV12345007  01
      3  1818-80E      SV12345003     1818-80E-SV12345003  13
      4  1818-80E      SV12345005     1818-80E-SV12345005  05
      5  1818-80E      SV12345004     1818-80E-SV12345004  37
      6  1818-80E      SV12345002     1818-80E-SV12345002  25
      7  1818-80E      SV12345008     1818-80E-SV12345008  17
      8  1818-80E      SV12345006     1818-80E-SV12345006  33

With the display ID set on the actual hardware, you should now verify that the locations defined in the cluster's configuration actually match the enclosure's position in its rack. If you find that the enclosures are not numbered 01, 05, 13, … starting from the bottom of the rack, then use the mmchcomploc command to correct the configuration. Then rerun mmsyncdisplayid and recheck the hardware.