Hi Tom,
Yes it is possible to use Flashcopy to establish Flashcopy pairs for a
large number of volumes at approximately the same time. We do this in
conjunction with a daily syncpoint where activity is suspended in DB2 to
support DRP.
PAGE 0001 5695-DF175 DFSMSDSS V1R07.0 DATA SET SERVICES
2006.359 00:30
ADR004I (SCH)-PRIME(01), USER ABEND 0001 WILL BE ISSUED ON OCCURRENCE
0001 OF MESSAGE ADR306
PARALLEL
ADR101I (R/I)-RI01 (01), TASKID 001 HAS BEEN ASSIGNED TO COMMAND
'PARALLEL'
COPY FULL INDDNAME(SOURCE1) OUTDDNAME(TARGET1) DUMPCONDITIONING -
PURGE FCNOCOPY ADMINISTRATOR ALLDATA(*) ALLEXCP
ADR101I (R/I)-RI01 (01), TASKID 002 HAS BEEN ASSIGNED TO COMMAND 'COPY '
COPY FULL INDDNAME(SOURCE2) OUTDDNAME(TARGET2) DUMPCONDITIONING -
PURGE FCNOCOPY ADMINISTRATOR ALLDATA(*) ALLEXCP
ADR101I (R/I)-RI01 (01), TASKID 003 HAS BEEN ASSIGNED TO COMMAND 'COPY '
COPY FULL INDDNAME(SOURCE3) OUTDDNAME(TARGET3) DUMPCONDITIONING -
PURGE FCNOCOPY ADMINISTRATOR ALLDATA(*) ALLEXCP
ADR101I (R/I)-RI01 (01), TASKID 004 HAS BEEN ASSIGNED TO COMMAND 'COPY '
COPY FULL INDDNAME(SOURCE4) OUTDDNAME(TARGET4) DUMPCONDITIONING -
PURGE FCNOCOPY ADMINISTRATOR ALLDATA(*) ALLEXCP
ADR101I (R/I)-RI01 (01), TASKID 005 HAS BEEN ASSIGNED TO COMMAND 'COPY '
COPY FULL INDDNAME(SOURCE5) OUTDDNAME(TARGET5) DUMPCONDITIONING -
PURGE FCNOCOPY ADMINISTRATOR ALLDATA(*) ALLEXCP
To minimize the time you can use multiple jobs, multiple steps in each
job (we do 20 volumes in each step), and use the PARALLEL option in
DFDSS.
You can Flashcopy hundreds or thousands of volumes quickly. A typical
Flashcopy job here does 100 volumes in 5 steps in 30 to 50 seconds
total.
Best Regards,
Sam Knutson, GEICO
Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
Do not seek to follow in the footsteps of the men of old; Seek what
they sought.
Basho
-----Original Message-----
>
> What you describe is exactly what I did for a client in Columbus OH.
> They had a Shark for their mainframe. We flashed as soon as the batch
> cycle ended and then did the full volume copies to tape (2 copies)
(one
> for on site and one for offsite). As I recall, Backups of the flash
> copies started between 5a-6a and finished by 9AM. 3390-3s and 3490
with
> "oreos". I've forgotten how many 3490 units and how many DASD units.
>
> Oh yeah, and D/R tests worked the first time, every time.
>
Steve,
Over what period of time were the volumes FlashCopy'd? My understanding
is
that DFDSS front-ends the FlashCopy function, so you only get the
FlashCopy
just before DFDSS can do the physical backup to tape. Can you batch all
the
FlashCopy's, then copy them to tape later? It's very important to keep
the
time window when the volumes are actually copied as small as possible.
Regards,
Tom Conley
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