SVT1X0125I Mount request ignored for foreign volume xxxxxx
Article ID: 139241
Updated On:
Products
Issue/Introduction
Trying to read a Volser with label CRTG, using Copycat Tapemap, the job can end with the error:
SVT1X0125I Mount request ignored for foreign volume xxxxxx
Why is this error occurring and how can it be bypassed?
Environment
Component : Vtape Virtual Tape System
Resolution
With use of the CTS or Copycat Tapemap utilities, BLP processing is used, and this results in an EXPDT of 98000 being assigned to the tape. In this case it is necessary to set the Vtape 'ForeignTapesExpdt' parameter to '00000' (or use the default) so that a Vtape virtual tape can be successfully mapped by the tapemap utility. Further information about foreign tape processing can be found in the CA VTAPE Configuring Guide, section titled 'Foreign Tape Processing'. The doc link is below, followed by the contents found via this link:
A foreign tape is a tape that has not been defined to the Tape Management System. Foreign tapes fall into two categories, VOLSERs that were never defined to the Tape Management System and duplicate VOLSERs.
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Foreign tape processing involves coding a special value in your JCL to indicate that the Tape Management System should not track and validate the use of the VOLSER referenced. The special value is typically LABEL=EXPDT=98000.
CA Vtape™ Virtual Tape System will automatically attempt to intercept any mount for a VOLSER that has been defined to CA Vtape™ Virtual Tape System if the unit esoteric or generic coded in the mount request includes the CA Vtape™ Virtual Tape System Virtual Devices. If you have a tape with a VOLSER that matches a Virtual Volume, you need to use a unit esoteric or generic that does not include the Virtual Devices, hardcode a device number that does not belong to CA Vtape™ Virtual Tape System, or use Foreign Tape Processing to bypass CA Vtape™ Virtual Tape System.
When a specific mount request for a CA Vtape™ Virtual Tape System VOLSER is detected and the referenced DD statement defines an expiration date that matches the CA Vtape™ Virtual Tape System ForeignTapesExpdt attribute value, the Virtual Devices will be marked ineligible in the eligible device list (EDL). The mount request will be ignored by CA Vtape™ Virtual Tape System.
If you write to a VOLSER that matches that of a CA Vtape™ Virtual Tape System Virtual Volume, all subsequent mount requests for this VOLSER must use a LABEL=EXPDT value equal to the ForeignTapesExpdt value or CA Vtape™ Virtual Tape System will try to intercept the mount request and mount the Virtual Volume instead of the original VOLSER written.
You should define a ForeignTapesExpdt value consistent with that used by the tape management system installed.
For example, when mounting a tape that is not controlled by CA 1, you code LABEL=EXPDT=98000 on the DD statement to bypass CA 1 validation. Using the same value for CA Vtape™ Virtual Tape System will allow a foreign tape with a VOLSER matching that of a Virtual Volume to be mounted on a non-Virtual Device.
To correct problems you might need to mount a Virtual Volume, but bypass tape management validation. To do this you would set the CA Vtape™ Virtual Tape System ForeignTapesExpdt attribute to a value that does not match that of the tape management system and issue the SVTn REFRESH=OPTIONS console command to pick up the change. When you code LABEL=EXPDT=98000 in your JCL, you will bypass the tape management system, but not CA Vtape™ Virtual Tape System.
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