Operating instructions

SEPTEMBER 2005 MAGNUM 1X7 LTO AUTOLOADER
15-3
WHAT YOU SEND TO THE AUTOLOADER
DVCID – Bytes 06, Bit 0
The DVCID (device ID) bit indicates whether the autoloader appends the
device identifier for the tape drive, if available, to the standard data transfer
element descriptor, as follows:
0 – Do not append the device identifier
1 – Append the device identifier
Allocation Length – Bytes 07 through 09
This field specifies the length in bytes of the space that you are allocating for
returned element descriptors. Only complete element descriptors are
returned. The autoloader returns element descriptors until one of the
following conditions is met:
 All available element descriptors have been returned.
 The number of element descriptors specified in the Number of Elements
field has been returned.
 The remaining allocation length is smaller than the next complete element
descriptor or header to be returned.
S/N Request – Byte 11, Bit 7
This bit indicates whether the autoloader appends the ten-byte tape drive
serial number to the standard data transfer element descriptor, as follows:
0 – Do not append the tape drive serial number.
1 – Append the tape drive serial number.