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116 Chapter 6
Troubleshooting
6.2 Service Information Messages (SIMs)
The 9900 subsystem generates service information messages (SIMs) to identify normal
operations (e.g., TrueCopy pair status change) as well as service requirements and errors or
failures. For information on SIMs, please contact the Hitachi Data Systems Support Center
(see section 6.3). (The SIM list in this document was removed because it was not complete.)
SIMs can be generated by the CHIP and ACP microprocessors and by the SVP. All SIMs
generated by the 9900 are stored on the SVP for use by Hitachi Data Systems personnel,
logged in the SYS1.LOGREC dataset of the S/390
®
host system, logged on the Remote Console
PC (the Remote Console PC must be running), and reported via SNMP to the open-system
host. The Remote SIM (R-SIM) feature of the 9900 Remote Console PC enables users to view
the SIMs reported by the attached 9900 subsystems on the Remote Console PC. Each time a
SIM is generated, the amber Message LED on the 9900 control panel turns on and the Remote
Console PC displays a warning message, even when the remote console software is not
running. The Hi-Track
®
remote maintenance tool also reports all SIMs to the Hitachi Data
Systems Support Center.
SIMs are classified according to severity: service, moderate, serious, or acute. The service
and moderate SIMs (lowest severity) do not require immediate attention and are addressed
during routine maintenance. The serious and acute SIMs (highest severity) are reported to
the S/390
®
host(s) once every eight hours. Note: If a serious or acute-level SIM is reported,
the user should call the Hitachi Data Systems Support Center immediately to ensure that the
problem is being addressed (see section 6.3).
Figure 6.1 illustrates a typical 32-byte SIM from the 9900 subsystem. SIMs are displayed by
reference code (RC) and severity. The six-digit RC, which is composed of bytes 22, 23, and
13, identifies the possible error and determines the severity. The SIM type, located in byte
28, indicates which component experienced the error.
Byte
SIM SSB
0123456 89107 11121314151617181920212223 2524 26 27 28 29 30
0090 10 00 00 00E0 44 1000 0C 69 000000 02 05 10 42 C000 020004 0400
70
SSB22, 23
SSB13
Indicates SIM.
RC = 307080
SIM type
F1: DKC SIM
F2: CACHE SIM
FE: DEVICE SI
M
FF: MEDIA SIM
8F 80 30 F1
Figure 6.1 Typical 9900 SIM Showing Reference Code and SIM Type