Reserve (6)
234 SL150 Interface Reference Manual Julyl 2017
Reserve (6)
The 6-byte Reserve command (16h) allows the initiator to perform unit reservations.
Unit reservations are reservations of the library as a whole.
Other Commands and Reservations
Unit reservations are released or canceled by:
• A “Release” command from the same initiator
• A Task Management reset:
• Target Reset
• LUN Reset
• An interface reset
• A power-on reset of the library
If the library is reserved as a unit, the library processes only the following commands
from another initiator:
• Prevent/Allow Medium Removal with Prevent bits set to 0
• Inquiry
• Log Sense
• Release (the reservation is not released)
• Request Sense
• Report LUNs
• Report Target Port Groups
All other commands result in a Reservation Conflict status (18h).
TABLE 4-130 Reserve Command
Byte
Bit
76543210
0 Operation Code (16h)
1 Ignored Obsolete (0h)
2 Obsolete (00h)
3 to 4 Obsolete (00h)
5 Control Byte
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