GDDR: M29 Script Does Not Complete In Step 8, Unable to Resume SRDF Replication

Summary: A CACA10 error was received, and GDDR script M29 is processed and unable to resume the R1 to R2 replication (SRDF/A). The R1 Symmetrix is managing invalid tracks in back ground which had not been completed prior to the resume command being issued. ...

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Symptoms

Recovery of the disaster recovery system was delayed after a M29 script failure. The disaster recovery solution suffered a CACA10 error during month-end processing, GDDR issued a script (M29) to resume the R1 to R2 data replication to recover.

The script had to be resubmitted for completion, delaying the recovery. The recovery of the R1 to R2 took several hours thus leaving the disaster recovery exposed. The SYMM cleanup takes 10-20 minutes to complete the background process.
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Errors that are seen:

EMCCW88E Inline D0 failure: error code 190100DD
EMCGM25E SYMM CMD ERR: CMD=D0 ERR=0019 SRDFA sessions are being cleaned up
EMCCWFEE Command failed (CMD:630)

Error information from GDDR joblogs: 

00.37.47 JOBnnnnn +GDDR639I GDDR Function Status ===> 787
Version: 0 17-May-2023 2/4
787 >
787 > GDDR Function Issue RDF Command ( GDDRRDF0 )
787 > Completed step 8 of 22 in 51.133439 Seconds
787 > With Return code 8
787 >

00.37.47 JOBnnnnn +GDDR874I GDDR Function Issue RDF Command completed in 51.133439 secs 00.37.47 JOB10457 +GDDR639I GDDR Completed Script Function Call Stats with rc 0
00.37.47 JOBnnnnn +GDDR721I GDDR Starting Script Function Call Stats
00.37.47 JOBnnnnn +GDDR639I GDDR Function Status ===> 791
791 >
791 > GDDR Function Resume SRDF/A (MSC) after link loss ( GDDRPA29 )
791 > Completed In 259.935615 Seconds
791 > With Return code 8
791

Cause

A CACA10 error was encountered during month-end processing. GDDR issued a recovery script to resume data replication which failed. 

Resolution

Workaround:

  • Rerun the script after waiting for background tasks to finish. Time to completion may vary. From past experience, 15 to 20 minutes seems to be the average time to completion.


Permanent Fix:

  • For GDDR 6.0 fix GD60022 has been developed to correct the issue. It is available to download from Dell Technologies Online Support.
  • For GDDR 6.1, the issue is resolved in the base product.  It is available to download from Dell Online Support.

Affected Products

Geographically Dispersed Disaster Restart (GDDR)
Article Properties
Article Number: 000213674
Article Type: Solution
Last Modified: 19 May 2025
Version:  2
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