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FDRINSTANT for FlashCopy has been enhanced
to support V2 of the IBM FlashCopy function, which includes flashing
data sets and removes some restrictions compared to V1.
To use FlashCopy V2, you must install the Flashcopy V2 microcode
on your IBM 2105 ESS (Shark) and you must install the co-requisite
IBM FlashCopy V2 PTFs on your operating system.
FDRINSTANT for FlashCopy now enhances FDRCOPY
so that when you are copying or moving a data set between two volumes
in an ESS with the V2 support installed, it will automatically use
FlashCopy to copy the data. FDRCOPY will complete in just seconds.
The data is actually copied in the background by the ESS microcode
but the copied data sets can be accessed as soon the FDRCOPY step
ends.
In a test where 2 sequential datasets
of 800 cylinders each were FlashCopied from one ESS volume to another,
the FDRCOPY step took only 3 seconds. By contrast, copying the same
datasets within the ESS without FlashCopy took 165 seconds.
For a full-volume FlashCopy for FDR or ABR backups,
Flashcopy V2 now allows you to flash between any two volumes in
the same ESS (V1 requires that the volumes be in the same LSS, Logical
Subsystem). Because of changes in the IBM API for FlashCopy V2,
FDRINSTANT V5.4 level 30 is required even for full-volume FlashCopy
if you install V2.
The EMC Symmetrix DMX disk subsystem is supported by FDR V5.4 level
24 and above. This only applies to customers licensed for FDRINSTANT
for EMC Timefinder, FDRSOS, or FDRPAS. Other customers may use any
supported level of FDR with EMC DMX subsystems.
Since its inception, FDRINSTANT for EMC Timefinder has enhanced
FDRCOPY to use EMCCOPY, an internal copy function, whenever you
are copying or moving a data set between two volumes in the same
EMC Symmetrix system. EMCCOPY was faster than a regular READ/WRITE,
but it takes some time.
In FDR V5.4/30, FDRCOPY has been enhanced
to use the EMCSNAP function when copying between two volumes
in the same Symmetrix. The EMCSNAP
function is "instant" in that it appears to complete
in just seconds. The data is actually copied in the background
by the
Symmetrix microcode but the copied data sets can be accessed as
soon the FDRCOPY step ends.
However, EMCSNAP support is shipped disabled because of interactions
with Timefinder BCVs. FDRINSTANT customers should review the member
called EMCSNAP in the ICL library.
EMCSNAP gets elapsed times similar those quoted for IBM FlashCopy
above.
FDRINSTANT
works alongside FDR and ABR, and in conjunction with DASD
Subsystem facilities such as EMC TimeFinder, StorageTek/IBM
SnapShot Copy, HDS ShadowImage and IBM FlashCopy V1 and V2,
which can all create offline duplicates of DASD volumes, seamlessly
without disruption for 24 x 7 availabilty.
FDRINSTANT provides the ability to take
"instant" point-in-time backups from the offline
duplicate. This can be done while applications (CICS, TSO,
Batch, etc.) continue to use the real data on the original
volumes.
FDRINSTANT easily interfaces with DB2.
Utilizing DB2 LOG SUSPEND allows you to backup DB2 without
closing the system. FDR and ABR supports RESTORE of the
entire DB2 system and individual tablespaces.
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FDR products will support all models of the
new IBM z990 processor.
No special versions of FDR are required, except that certain
FDR versions may be required for the operating system level you
are running. For details, visit our web site at http://www.innovationdp.fdr.com/osreq.cfm
The z990 supports more than 15 LPARs, although that support will
not be available until October 2003. FDRPAS customers using LPAR
numbers over 15 (X'0F') must use FDRPAS V5.4 level 24 or higher.
FDR products have been tested with a StorageTek
9840B drive on a FICON channel. All supported versions of FDR will
work with these drives.
A test was run with a FICON 9840B tape drive, dumping a 4GB Open
System volume in a FICON-attached EMC subsystem with FDRSOS. The
same test was run on an ESCON-attached 9840B drive. The results
are:
| ELAPSED |
DATA
RATE |
IMPROVEMENT |
| 9840B
ESCON |
5.4M |
13.4 MB/sec |
| 9840B
FICON |
4.2M |
17.2
MB/sec 22% |
As of V5.4/20, tapes created by ABR Archive
can be managed directly by ABR as a EDM (External Data Manager).
As an EDM, ABR tells the tape management system when a tape is
ready to be released to scratch; the tape management system will
not scratch it until it is notified.
This is ONLY for ABR Archive tapes.
Currently ABR supports EDM for tape management systems CA-1, CA-DYNAM/TLMS
and DFSMSrmm (RMM).
For CA-1 and CA-DYNAM/TLMS, one advantage of EDM is a reduction
in the number of CA-1 DSNBs and TLMS auxiliary records required.
Because ABR stacks many backup files on each tape, it may require
a large number of DSNBs or aux records; EDM eliminates that requirement
for ABR Archive tapes.
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