Target Reset; Not Ready To Ready Transition; Cap Element Accessed; Mode Parameters Changed - Sun Microsystems storagetek sl500 Reference Manual

Request Sense

Target Reset

The library generates this type of Unit Attention to all initiators after the library is
clear of all I/O processes following the Target reset.

Not Ready to Ready Transition

The library generates this type of Unit Attention when the library transitions to a
ready state from a not ready state. This transition can occur following any
conditions that cause a not ready state. A Unit Attention is generated for all
initiators.

CAP Element Accessed

The library generates this type of Unit Attention when the operator opens and
closes the CAP. Issue a Read Element Status command to obtain an updated
inventory. A Unit Attention is generated for all initiators.
Note – After running Send Diagnostic page code 80 or 81, this Unit Attention sense
key will be returned at completion, which indicates that the inventory has changed.

Mode Parameters Changed

The library generates this type of Unit Attention when a different initiator
performs a Mode Select operation. Issuing a Mode Sense command can retrieve the
current parameters. This Unit Attention is issued for all initiators except the one
that performed the Mode Select.

Persistent Reservations/Registrations Preempted or Released

The library generates these types of Unit Attention sense keys when one initiator
has its persistent reservations or registrations cleared by another initiator.

Microcode Has Been Changed

The library issues this Unit Attention sense key after executing a Write Buffer
command to update the functional microcode for the library.

LUN Data Has Changed

The library generates this type of Unit Attention to all initiators when the library
LUN configuration has changed.
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