
When you format a partitioned tape, keep the following rules in mind:
Before formatting new partitions, you must position the tape at
LBOT (if it is currently a single-partition tape), or at the logical
beginning of one of the partitions (if it is a dual-partition tape).
The EXB-8505 must be set to write in 8500c format.
Field Definitions
Byte 00, Bit 7 - PS (Parameters Savable)
The Parameters Savable bit indicates if the MODE SELECT parameter
data contained in this page is savable. The EXB-8505 does not
support this feature. The valid value for this bit is 0.
Byte 00, Bits 5 through 0 - Page Code
The Page Code identifies the page being transferred. The valid value
is 11h (Medium Partition Page).
Byte 01 - Page Length
The Page Length indicates the number of bytes in the Medium
Partition Page that follow this byte. The two valid values for this byte
are 06h (for the short form) and 08h (for the long form). Note that the
MODE SENSE command always returns the long form (08h).
Byte 02 - Maximum Additional Partitions
The Maximum Additional Partitions byte indicates the maximum
number of additional partitions that can be defined for the loaded tape.
That is, it specifies how many partitions in addition to the original
partition (the entire tape) can be defined. The EXB-8505 supports a
maximum of two partitions on a tape, so the value returned for this
byte in the MODE SENSE data is 01h. This field is ignored by the
EXB-8505 in the MODE SELECT command.
Byte 03 - Additional Partitions Defined
The Additional Partitions Defined byte indicates how many
additional partitions you are defining with the Medium Partition
Page. The valid value depends on which form of the Medium
Partition Page you are using, as follows:
For the short form, specify 00h to indicate that you are defining
no additional partitions (the tape will have only one partition).
May 1994 EXB-8205 and EXB-8505
(Standard and XL)
10-45
10 MODE SELECT (15h) andMODE SENSE (1Ah)
Kommentare zu diesen Handbüchern