HP StorageWorks XP Disk Array Mainframe Host Attachment and Operations Guide XP24000, XP20000 (A5951 - 96151, September 2007)

Service Information Messages (SIMs)
The storage system generates service information messages (SIMs) to identify normal operations (for
example, XP Continuous Access pair status change) as well as service requirements and errors or
failures. For assistance with SIMs, call your HP support representative.
SIMs can be generated by the front-end and back-end directors and by the SVP. All SIMs generated
by the storage system are stored on the SVP for use by HP personnel, logged in the SYS1.LOGREC
dataset of the mainframe host system, displayed by the XP Remote Web Console, and reported over
SNMP to the open-system host. The SIM display on the XP Remote Web Console enables users to
remotely view the SIMs reported by the attached storage systems. Each time a SIM is generated, the
amber Message LED on the control panel turns on. The C-Track remote maintenance tool also reports
all SIMs to HP.
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 mainframe host(s) once
every eight hours.
IMPORTANT:
If a serious or acute-level SIM is reported, the user should call HP immediately to ensure that the problem
is being addressed.
The following SIM message types are generated by the storage unit.
Table 15 SIM message types
Tracks DDM failures and problems.Direct access storage device (DASD) SIM
Tracks data check problems on the media.Media SIM
Tracks storage unit, power control, and other hardware
problems.
Storage unit SIM
Table 16 SIM severity levels
An irrecoverable error with possible loss of data. This severity level only
applies to DASD SIMs.
acute1
An irrecoverable error or a data check with loss of access to data.serious2
A system path is not operational and performance might be degraded. This
severity level does not apply to media SIMs.
moderate3
A recoverable error, equipment checks, or data checks. You can defer
repair.
service4
The following figure illustrates a typical 32-byte SIM from the storage system. 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.
Troubleshooting76