Specifications
ATAPI For Streaming Tape QIC-157 Rev B
77
The Medium Format Recognition field is a Device-defined value indicating the Device's capability
to automatically identify the medium format and partition information when reading an unknown
volume.
Table 6-55 Medium Format Recognition Field
Value Meaning
00h Incapable of format or partition recognition.
01h Capable of format recognition only.
02h Capable of partition recognition only.
03h Capable of format and partition recognition.
04h-FFh Reserved.
Implementor's Note: If a Device indicates that it is not capable of medium format recognition, the
Host must supply all necessary parameters for the Device to identify the specific format. The value in
this field may be different following a medium change.
6.8.8.73.Capabilities and Mechanical Status Page Code 2Ah
Table 6-56 Capabilities and Mechanical Status Page
Bit
Byte
7 6 5 4 3 2 1 0
0 Reserved Page Code (2Ah)
1 Page Length (12h)
2 Reserved
3 Reserved
4 Reserved Reserved SPREV Reserved Reserved Reserved Reserved RO
5 Reserved Reserved QFA Reserved EFMT Reserved Reserved Reserved
6 CMPRS ECC Reserved Reserved EJECT PREVENT LOCKED LOCK
7 SLOWB Reserved Reserved Reserved Reserved BLK1024 BLK512 Reserved
8 (MSB) Maximum Speed Supported (in KBps)
9 (LSB)
10 (MSB) Maximum Stored Defected List Entries
11 (LSB)
12 (MSB) Continuous Transfer Limit (in blocks)
13 (LSB)
14 (MSB) Current Speed Selected (in Kbps)
15 (LSB)
16 (MSB) Buffer Size (in 512 bytes)
17 (LSB)
18-19 Reserved
If the SPREV bit is set, the Devices supports SPACE in the reverse direction.
If the RO bit is set, the Device is operating in a read only mode.
If the QFA bit is set, the Device supports the QFA two partition formats.
If the EFMT bit is set, the Device supports ERASE command initiated formatting.
If the CMPRS bit is set, the Device supports data compression.
If the ECC bit is set, the Device supports error correction.
If the EJECT bit is set, the Device can mechanically unload the volume with the LOAD/UNLOAD
command.