---------- Forwarded message ----------
From: Shai Hess <[email protected]>
Date: Fri, Nov 4, 2011 at 1:34 PM
Subject: MTL and NONMTL Tapes and MFNetDisk and NON MFNetDisk tapes managers
To: [email protected]
**
People ask me about MFNetDisk supports for tapes manager.
So, MFNetDisk supports MTL or NONMTL drive 3490.
MFNetDisk support MFNetDIsk tapes manager or other tapes manager (CA1, TMM).
In one PC MFNetDisk, you can run many MTL, and one NONMTL library.
One MF MFNetDisk can support many MTL and many NONMTL library because each
tape specify in MF point to specific PCIP.
Tapes manager are used to manages tapes atrribute, meaning SCARTCH or
non SCARTCH tapes.
If user want to support the MFNetDisk tape managers, they must specify in
MVS parameter file (MPCOPT) TAPE CTLSCR=Y.
If you have your own tape manager (CA1, TMM) you must specify TAPE CTLSCR=N
The meaning of TAPE CTLSCR=Y/N parameter is if MFNetDisk will check for
scratch using OAM (CTLSCR=N) or send the request to PC (CTLSCR=Y) to try to
manage the SCARTCH request..
In PC you have option which specify if PC will reject SCRATCH or PRIVATE
requests (TAPE SCRATCHMANAGER=DISABLE), or will look in his internal data
for tape with SCARTCH attribute to be used by MF for the pending SCARTCH or
PRIVATE requests (TAPE SCRATCHNANAGER=ENABLE).
To set this value in PC run PCTOOL with
MODIFY>TAPE>SCARTCHMANAGER=DISABLE/ENABLE.
If SCARTCHMANAGER=DISABLE and MFNetDisk PC receive tape mount request for
SCARTCH, MFNetDisk will return IO error to MF.
If this is the case MF will reissue the mount request and the mount request
will stay mount pending. To enable the MFNetDisk to retry the mount request
with the IO error, run F MPC,ATTN=UUUU where UUUU is the tape drive.
If SCRATCHMANAGER=ENABLE and MFNetDisk PC receive tape mount request for
SCARTCH, MFNetDisk will search is tapes pools for tape with attribute
SCARTCH and supply the tape label to MF and mount the specific tape to be
used by the job in MF. If the tape is MTL, MFNetDisk will change the
specific tape attribute to SCARTCH in the OAM automatically.
The recommendation is:
MTL or NONMTL and MFNetDisk tape manager:
MF: TAPE CTLSCR=Y
PC: SCARTCHMANAGER=ENABLE
MTL or NONMTL and CA1 or other tape manager product but not MFNetDisk tape
manager:
MF: TAPE CTLSCR=N
PC SCRATCHMANAGER=DISABLE
In all options (MTL and NONMTL) you must define:
In MF:
TAPEDRV - define the tapes drives used for MTL and NONMTL.
TAPELOC- define all the tapes labels and the PC IP which support these
tapes.
In PC:
Define PCSTORAGE- Define the PC disks locations which MFNetDisk used to
store the tapes data.
Define TAPERANGES- Define all the tapes belong to NONMTL and MTL managed by
the PC.
For MTL, the script must specify the MTL
library name which used by the tapes range.
For
MTL:CONFIG>TAPE>TAPERANGE>ADDTAPESRANGE>MTL
For
NONMTL:CONFIG>TAPE>TAPERANGE>ADDTAPESRANGE>NOMTL
If you run with MFNetDisk tape manager, you need to defined your rules to
change tapes attribute to SCARTCH.
MFNetDisk support parameters which are used by many tapes manager in the MF
market.
The supported MF value are: JOBNAME,DSN,PGM. Also MFNetDisk support EXPDT
and more JCL parameters.
The default rule is that after tape write, the tapes retention days is 7
days.
To update rules run script MODIFY>TAPE>RULE and then select the required
parameters.
To display the rules, run script DISPLAY>TAPES>RULES.
If you use MFNetDisk tape manager and MTL, the OAM must contained the tapes
labels support for specific MTL.
MFNetDisk can do it for you by running the
CONFIG>TAPE>TAPERANGE>ADDTAPESRANGETOOAM
Thanks,
Shai Hess, MFNetDisk product.
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