E20425-01 •
Chapter 4 Commands
147
Prevent/Allow Medium Removal Command
■
Prevent/Allow Medium Removal Command
The Prevent/Allow Medium Removal command enables and disables the
unload switch. The switch is enabled unless this command is used.
Notes:
1. The tape does not have to be ready when a Prevent command is issued.
The Prevent Medium Removal command disables only the unload switch.
Unload commands from the host are still permitted.
2. Allow Medium Removal returns status to the host only after all buffered
data is written on tape (the tape must be loaded and ready).
3. Medium removal is allowed only after all initiators that issued a Prevent
have issued an Allow Medium Removal command.
4. A reset condition clears the prevent condition.
Table 107. Prevent/Allow Medium Removal Command
Byte
Bit
7
6
5
4
3
2
1
0
0
Operation Code (1Eh)
1
thru
3
(MSB)
Reserved
(LSB)
4
Reserved Prevent
5
Control Byte
Parameter
Value
Prevent Prevent
medium
removal:
00 = Allow medium removal (enable switch)
01 = Prevent medium removal (disable switch)
Summary of Contents for Storage Tek T10000
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Page 18: ...What s New xx T10000 Interface Reference Manual January 2011 E20425 01...
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