Memorex LOCK - VERSION 2-24 Especificaciones Pagina 368

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Initializing Tapes (TSIDINIT) Mounting Tapes
12-10 User Reference
Sequential initialization requires that the last four characters of the volume serial number be
numeric (for example, EP1200 or A67019). Random initialization places no restrictions on
the volume serial number.
TSIDINIT normally checks each tape’s actual volume serial number before writing in the tape
to ensure that an active tape is not initialized by mistake. It also protects against the creation
of duplicate volume serial numbers. If one of the volume serial numbers specified already
exists in the DSN Catalog, BIM-EPIC issues an error message and request a new volume
serial number.
Forced Initialization: Use this only if initializing brand new tapes that have never been
previously initialized. Forced initialization directs TSIDINIT to bypass any attempt to read
data from the volume and to immediately initialize the volume with the requested volume
serial number. Caution should be exercised with forced initialization. It bypasses tape label
checking, so active data can be lost if the wrong tape is mounted. If the volume serial number
already exists in the DSN Catalog, TSIDINIT issues an error message, and the tape will have
nothing but tape marks on it.
If it is necessary to reinitialize a tape that is currently in scratch status, execute TSIDINIT with
UPSI xxx1.
If the initialization process is to use an ACL:
PARM=’CONSOLE’ cannot be used. CUU and volume serial information must be
submitted via SYSIPT statements.
PARM=’ACL=aclname’ or PARM=’ACL=aclname,COUNT=nnnnn’ must be present on
the // EXEC statement.
Random, sequential, or forced initializations are permitted. Forced should be used with
caution. If a volser should accidentally be specified for an existing volser containing an
active dataset, or if the volser is owned by another operating system or machine, EPIC
will initialize it and its data will be lost.
In multiple ACL’s are present, only one of them can be used in a TSIDINIT execution. If
concurrent TSIDINIT executions are to be done, each should specify a different ACL
Name.
Since the ACL mounts volumes by reading their barcodes, the volume serial numbers
specified to TSIDINIT must match the appropriate barcodes.
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