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Current Power-on
Count
Power-on Time
World Time
UTC
NTP
Library Time
CD-ROM Emulation/Disaster Recovery mode page
This page can be used irrespective of whether the drive is acting as a tape or a CD device.
7
0
1
2
3
CD-ROM Emulation/Disaster Recovery mode page fields:
Non-Auto
CDmode
94
Commands
MODE SENSE
The number of times the drive has been
powered on
The number of seconds since the drive
has been powered on
The number of seconds from 00:00:00
on January 1, 1970
0 The local timezone has been used.
1h World Time is UTC.
0 Unsure if NTP-synced
1h World Time is set from NTP source.
The time in hrs:mins:secs set by the
library controller
6
5
Reserved (0)
When a system restarts after booting off tape, the drive detects the SCSI resets issued
during reboot and, in conjunction with knowing that more than 100 blocks have been
read in CD-ROM emulation mode, will revert back to behaving as a tape device. This is
the standard method by which the drive automatically reverts to being a tape drive in
order that a backup application can do file system recovery. The method of reversion
involves a firmware reboot, so the drive might become unavailable for a few seconds
during its "power-on" following the SCSI reset. (Note that normal SCSI reset response does
not involve a firmware reboot).
Setting this flag to 1 inhibits this automatic return to tape drive behavior; the drive will
remain in CD-ROM mode irrespective of blocks read and SCSI resets.
MODE SENSE
0 The drive is in tape drive mode.
1 The drive is in CD-ROM emulation mode.
MODE SELECT
Ignored
Ignored
Ignored if WT = 0
Ignored if WT is 0
Set to 1 if UTC World Time is being used.
Ignored if WT is 0
Set to 1 if World Time is NTP-synced.
Ignored
4
3
Page Code {3Eh}
Page Length {02h}
Reserved (0)
2
1
0
Non-Auto CDmode
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