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SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
5–131
PERSISTENT RESERVATION OUT Command (5Eh) (continued)
Table 5–60 Persistent Reservation Type Codes and Their Meanings (continued)
Code
Name
Description
3h
Exclusive Access
READS: Exclusive; any command from any initiator other than the initiator
holding the persistent reservation that attempts a transfer from the
disk results in a reservation conflict.
WRITES: Exclusive; any command from any initiator other than the
initiator holding the persistent reservation that attempts a transfer
to the disk results in a reservation conflict.
ADDITIONAL RESERVATIONS: Restricted; any PERSISTENT RESERVATION
OUT command with the Reserve service
action from any initiator other than the
initiator holding the persistent reservation
results in a reservation conflict. The initiator
that holds the persistent reservation can
reserve the logical unit, extents, or elements
as long as the persistent reservations do not
conflict with any reservations already
known to the device server.
4h
Shared Access
READS: Shared; any application client on any initiator may execute
commands that perform transfers from the disk to the initiator.
WRITES: Shared; ; any application client on any initiator may execute
commands that perform transfers to the disk from the initiator.
ADDITIONAL RESERVATIONS: Restricted; any PERSISTENT RESERVATION
OUT command with the Reserve service
action from any initiator other than the
initiator holding the persistent reservation
results in a reservation conflict. The initiator
that holds the persistent reservation can
reserve the logical unit, extents, or elements
as long as the persistent reservations do not
conflict with any reservations already
known to the device server.
5h
WRITE Exclusive,
Registrants Only
READS: Shared; any application client on any initiator may execute
commands that perform transfers from the disk to the initiator.
WRITES: Exclusive; any command from an initiator that has not previously
performed a Register service action with the device server that
attempts a transfer to the disk results in a reservation conflict
ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve the
logical unit, extents, or elements as long as
the persistent reservations to not conflict
with any reservations already known to the
device server.
(continued)
Summary of Contents for Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB
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Page 19: ...Contents Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives xix...
Page 25: ...About This Manual 1 4 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 55: ...Installation 3 28 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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Page 315: ...Feature Descriptions 6 14 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 321: ...Appendix A Quick Reference A 6 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 363: ...Appendix B SCSI Bus Signal Timing B 42 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 369: ...Index I 4 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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