Hitachi ShadowImage for IBM z/OS User"s Guide (T5213-96002, June 2007)

4 Troubleshooting
Hitachi ShadowImage™ for IBM
®
z/OS
®
User’s Guide
SIM Reporting
The storage system reports a service information message (SIM) to the host
when it is necessary to notify the user of a possible service requirement for
the storage system. The SIMs are classified according to severity for reporting
and logging purposes:
1. Service
2. Moderate
3. Serious
4. Acute
The larger the number becomes, more the message becomes important. The
SVP reports all SIMs related to SIz operations, and all SIMs are stored on the
SVP for use by Hitachi personnel. The SIMs reported to the zSeries
®
and
S/390
®
host are logged in the SYS1.LOGREC dataset of the host operating
system. Each time a SIM is generated, the amber Message LED on the control
panel (under the Ready and Alarm LEDs) turns on as an additional alert for
the user. The Storage Navigator computer also displays the SIMs to provide an
additional source of notification for the user.
Note:
For further information on SIM reporting, please contact your Hitachi
Data Systems representative or the Hitachi Data Systems Support Center.
The following figure shows a typical 32-byte SIM from the storage system.
Byte
0 1 2 3 4 5 6 7 8 9 101112131415 16 17181920212223 24 25 26 27 28 2930 31
SIM SSB
00 90 10 00 00 00
8F
E0 44 10 00 04 00
80
04 0C 69 00 00 00 00 02
47 D0
05 10 42 C0
F1
00 02 00
Indicates SIM.
SSB13
RC = 47D080
SSB22, 23
SIM Type
F1: DKC SIM
F2: CACHE SIM
FE: DEVICE SIM
FF: MEDIA SIM
Figure 8-2 Typical SIM Showing Reference Code and SIM Type
SIMs are displayed on the host console by reference code (RC) and severity.
The six-digit RC (composed of bytes 22, 23, and 13) identifies the possible
error and determines the severity. The SIM type (byte 28) indicates the
component which experienced the error.
The following figure shows the DKC SIM (byte 28 = F1) related to SIz
operations.