| US 7,484,055 B1 | ||
| Fast handling of state change notifications in storage area networks | ||
| Sumit Gupta, Newark, Calif. (US); Deepak M. Babarjung, Newark, Calif. (US); and Sajid Zia, Fremont, Calif. (US) | ||
| Assigned to Sun Microsystems, Inc., Santa Clara, Calif. (US) | ||
| Filed on Jun. 13, 2005, as Appl. No. 11/151,631. | ||
| Int. Cl. G06F 13/00 (2006.01); G06F 12/00 (2006.01) | ||
| U.S. Cl. 711—156 [711/100; 711/154; 709/223] | 20 Claims |
| 9. A storage network, comprising:
a storage area network (SAN) configured for digital data communications;
a naming service device running a name server operable to register devices linked to the SAN and to transmit state change
notifications upon a change in state of one or more registered devices on the SAN;
a plurality of target devices linked to the SAN and registered with the name server; and
an initiator device linked to the SAN and registered with the name server for receiving the state change notifications, wherein
the initiator device comprises a change notice handler processing a received one of the state change notifications to identify
a set of the target devices affected by a state change, to initiate a cleaning of I/O resources at the initiator device of
I/O operations related to the set of affected target devices, and to issue a new session request to at least one of the affected
target devices.
|