Sequential Access Device Page; Tapealert Page; Table 3-37 Sequential Access Device Page Codes - Oracle StorageTek T10000 Reference Manual

Log Sense Command

Sequential Access Device Page

The Sequential Access Device page (0Ch) returns counts of data bytes transferred to
and from tape and information about cleaning in binary format.

TABLE 3-37 Sequential Access Device Page Codes

Parameter
Code Description
0000h Number of bytes received from the initiator
(write command)
0001h Number of data bytes written on tape
0002h Number of bytes read from tape
0003h Number of bytes read by the initiator
0100h Cleaning
000 = No cleaning required
001 = Cleaning required
8000h Number of 4k bytes left on tape from the current position

TapeAlert Page

The TapeAlert Log Sense page (2Eh) is read from a tape drive at the following times,
as a minimum:
• At the beginning of a write/read job, after the media is loaded.
• Immediately after a fatal error during the write/read job.
• At the end of each tape when the write/read job spans multiple tapes.
• At the end of a write/read job, when the tape has been unloaded.
Each flag will be cleared to zero in the following circumstances:
• At drive power on.
• When the TapeAlert Log page is read.
• When specified corrective action has been taken (such as using a cleaning
cartridge).
• On a reset.
When a flag is cleared by reading the TapeAlert page, a flag cannot be set again until
the error condition is removed (for example, the specific corrective action has been
taken).
A Log Select Reset for the TapeAlert page does not reset the TapeAlert flags. It is
rejected with Illegal Request.
72 T10000: Interface Reference Manual
Note – The entire TapeAlert page should be read to obtain all the
information.
Length Default
(bytes) Threshold
8 FFFFFFFF
FFFFFFFF
8 FFFFFFFF
FFFFFFFF
8 FFFFFFFF
FFFFFFFF
8 FFFFFFFF
FFFFFFFF
4 N/A
4 N/A
August 2016