StorageTek 312564001 User Manual
DB2 Manager User Guide
41
StorageTek
Proprietary
Requirement: Optional
Default:
0
Validation: nnnn = 1-4 digit numeric value in range 0 - 1440
Use: The RETAINTAPE parameter specifies the number of minutes
for which a tape is to remain mounted after all outstanding
retrieval requests from that tape have been processed by the
DB2 Manager control region.
retrieval requests from that tape have been processed by the
DB2 Manager control region.
A tape which has not been referenced for the specified interval
will be automatically dismounted. A dismount of a tape may
be forced by DB2 Manager prior to expiration of this time
interval if no free tape drive is available for allocation of a new
tape volume, and the tape is the least-recently referenced of
all currently mounted tape volumes.
be forced by DB2 Manager prior to expiration of this time
interval if no free tape drive is available for allocation of a new
tape volume, and the tape is the least-recently referenced of
all currently mounted tape volumes.
A value of 0 indicates that tapes will be dismounted
immediately after the last outstanding request for retrieval from
each tape has been processed.
each tape has been processed.
A value of 1440 indicates that tapes are held permanently on a
drive until a dismount is forced when there are no free tape
drives to satisfy a new request (as described above), or until
termination of the DB2 Manager control region.
drives to satisfy a new request (as described above), or until
termination of the DB2 Manager control region.
Notes: This setting may be varied during DB2 Manager operation via
the 'SET RETAINTAPE' operator command.
If this parameter is omitted, a default value of RETAINTAPE=0
will be used.
TAPECNTL: TAPEWAIT
TAPEWAIT = nnnn
Requirement: Optional
Default:
0
Validation: nnnn = 1-4 digit numeric value in range 0 - 1440
Use: TAPEWAIT is an optional parameter which is used to control
whether retrieval requests for tape-resident Archive Manager
objects which cannot be immediately satisfied are rejected
(with a ‘resource unavailable’ reason code) or queued
internally until a tape retrieval resource becomes available, or
until a maximum wait limit has been exceeded. ‘nnnn’ must
be a 1-4 digit numeric character string in the range 0-1440,
which specifies the maximum number of minutes for which
requests are to be queued internally.
objects which cannot be immediately satisfied are rejected
(with a ‘resource unavailable’ reason code) or queued
internally until a tape retrieval resource becomes available, or
until a maximum wait limit has been exceeded. ‘nnnn’ must
be a 1-4 digit numeric character string in the range 0-1440,
which specifies the maximum number of minutes for which
requests are to be queued internally.