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SRDF/A can drop on a remote array with no host, giving no indication of the drop to the local array host. Symptoms: No message is posted on the mainframe to alert the user that SRDF/A has changed state.There are no IEA480E messages for a CACA.10, and no LOGREC records written on the local host side.There are no EMC9998W SSID nnnn RDFG nn SRDF/A SESSION DROP, RC=10 messages. #SQ VOL shows that R1 devices have changed from RW-AS to TNR-SY.#SQ VOL,nnnn,INV_TRKS display has high counts of invalids owed to the R2s.
The SIM event is sent to the box where a CACA.10 happened. It is not sent across the link.
Sometimes for remote arrays, there is no SRDF/A specific message posted to the SYSLOG other than the SRDF Host component information to say the link is gone or a drive is down.Local arrays that drop SRDF/A generate messages to the local mainframe host as follows (in this case it is dropped for a CACA.10 event):EMCRDF and SYSLOG message: EMC9998W SSID nnnn RDFG nn SRDF/A SESSION DROP, RC=10, RPTD BY ccuu N(0000) SYSLOG message (this shows the part indicating that it is a CACA.10): *IEA480E ccuu,DASD,MODERATE ALERT,MT=2107,SER=nnnn-EBCDIC, REFCODE=E4CA-0000-1030, To get SRDF/A status change notification for a remote array, enable the Mainframe Enablers ResourcePak Base (SCF) SRDF/A monitor. Instructions for this are documented in the DELL ResourcePak Base for z/OS Product Guide. Shown below are sample initialization statements needed for the SCF started task that runs on the mainframe: SCF.ASY.MONITOR=ENABLE SCF.ASY.POLL.INTERVAL=1 SCF.ASY.SMF.RECORD=255 In this sample, every minute SCF polls the SRDF/A session and checks if the status has changed. If the status has changed, it posts a message to the log. SCF1234I ASY -- CONTROLLER nnnnn RDFGRP(nn) ACT CHANGED ON -> OFF It also creates an SMF record (TYPE 255 is the default), if specified in the SCF INI parameter SCF.ASY.SMF.RECORD. This is a statistical record of an event. The SMF record fields are documented in the Mainframe Enablers ResourcePak Base Product Guide. Macro members SRDFAUX1 and @RDFASMF in SCF.SAMPLIB define the structure of the SMF records. Both macros must be specified. There is also the option to set up a USEREXIT. This is a script that triggers when the SRDF/A monitor detects this change in the status of the SRDF/A session from the last time it polled. Macro members SRDFAUX1 and @RDFASMF in SCF.SAMPLIB define the structure of the SMF records. Both macros must be specified.A flex filter can be applied in the remote array to send an email to the primary contact if a CACA.10, or other critical events happen.
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