SPC-3 issue of direct interest to iSCSI implementations

[Ralph Weber <ralphoweber@compuserve.com>]

An SPC-3 editing review held in preparation for a T10 Letter Ballot
has uncovered some problems with the definition of iSCSI TransportID
values.

TransportIDs are used by Access Controls and Persistent Reservations
as a way for one initiator port to specify an action affecting
another initiator port.

Upon further review, problems have been found in a previously approved
proposal to use TransportIDs to identify initiators in the PERSISTENT
RESERVE OUT when the SPEC_I_PT (Specify Initiator Ports) bit is set to
one.

In all cases, the changes required to resolve the problems are technical
in nature and a proposal to effect them has been uploaded:

  ftp://ftp.t10.org/t10/document.03/03-203r0.pdf

The proposed changes have the potential to affect existing iSCSI
implementations that support Access Controls or the PERSISTENT
RESERVE OUT SPEC_I_PT function. So, review and comment by ips
participants is encouraged. Please direct comments to the T10
reflector (t10@t10.org).

WARNING: The proposal as written includes changes to the PERSISTENT
RESERVE OUT SPEC_I_PT function that are not backward compatible.

Regards,

.Ralph