The second entry instructs the run_ssa_healthcheck shell script to run once each hour.
This shell script causes the SSAadapter to log any errors that might exist in the SSA
subsystem, but that are not causing application programs to fail.
The third entry instructs the run_ssa_encl_healthcheck shell script to run at 30 minutes
past each hour.This shell script searches for SSA enclosures that provide support for
SCSI Enclosure Services (SES). If any of those enclosures detects errors, the shell
script causes entries to be made in the error log .
The fourth entry instructs the run_ssa_link_speed shell script to run at 04:30 each day.
This shell script searches for SSAlinks that are not running at the best speed. If one is
found, an entry is made in the system error log.
Note: Youcan use 20-MB-per-second (black) SSA cables to connect
40-MB-per-second SSAnodes. If you do, however, the run_ssa_link_speed shell
script might cause errors to be logged that can be solved only by exchanging the
black cables for 40-MB-per-second cables (blue) SSAcables. If you are using
20-MB-per-second SSAcables to connect 40-MB-per-second SSA nodes,
therefore, delete the run_ssa_link_speed cron entry.
Microcode Maintenance
This section describes how to:
vCheck the ID and the level of the microcode package
vMaintain the adapter microcode
vMaintain the disk drive microcode
Checking the ID and Level of the Microcode Package
For some problems, the service request number (SRN) might ask you to check the
microcode package ID or the microcode level before you exchange any
field-replaceable units (FRUs).
Todetermine the microcode package ID, give the following command:
lsattr -E -l adapter -a ucode
where adapter is the ID of the adapter that you want to check; for example, ssa0.
An example of a response to this command is:
ucode 14109100.05.50 Name of adapter code download file False
The microcode package ID is 14109100.05.50
Note: The word “False”shows that this attribute cannot be changed.
Todetermine the adapter microcode level, use the Display or Change Configuration or
Vital Product Data (VPD) service aid to display the VPD for the adapter (see the
314 User’s Guide and Maintenance Information