Abstract: The present invention discloses a management module for a storage device. The management module comprises a primary server and a secondary server. Each server comprises a network port configured to interface the server and a telecommunication network and a virtual bridge configured to selectively enable or disable data transfer to and from the network port. The virtual bridges of the primary and secondary servers are linked for enabling data transfer between said virtual bridges, the virtual bridge of the primary server is configured to disable data transfer while the virtual bridge of the secondary server is configured to enable data transfer and the virtual bridge of the primary server is further configured to maintain an IP address of the management module.

Abstract: The present invention discloses a management module for a storage device. The management module comprises a primary server and a secondary server. Each server comprises a network port configured to interface the server and a telecommunication network and a virtual bridge configured to selectively enable or disable data transfer to and from the network port. The virtual bridges of the primary and secondary servers are linked for enabling data transfer between said virtual bridges, the virtual bridge of the primary server is configured to disable data transfer while the virtual bridge of the secondary server is configured to enable data transfer and the virtual bridge of the primary server is further configured to maintain an IP address of the management module.

Abstract: A method of managing reservation-control in a storage system that consists of a plurality of interfaces and a common storage resource, the method comprising responsive to receiving at an originator interface a reservation command related to the common storage resource, implementing a multi-phase reservation synchronization protocol including a lock phase consisting of locking the resource on a central controlling process, backing up respective lock phase data on a backup control process, and issuing a lock phase completion indication; an execution phase consisting of executing locally on each one of the plurality of interfaces a reservation operation, and issuing an execute phase completion indication; and an unlock phase consisting of unlocking the resource on the central controlling process; backing up respective unlock phase data on a backup control process, and issuing an unlock phase completion indication.

Abstract: Systems and methods for failure monitoring in a storage system. In some cases, a failed entity is detected based on an analysis of at least the indications obtained in return for input/output commands sent to multiple entities in the storage system. In some of these cases, it is also determined whether the failure is enduring or transient.