Tekelec

Netapp, Inc.

Network Appliance, Inc.

David W Minnich

Rithin Kumar Shetty

David Brittain Bolen

Yoogin Lean

Richard James Spangler

Kevin Allen Sapp

Merl Allen Trimmer, Jr

Alan Stuart Driscoll

Stephen Wu

Vikas Yadav

Brian Christopher Parkison

Amol Chitre

Guillermo Roa

Adarsh Seetharam

A system and method for lun migration between data containers, such as aggregates of a storage system is provided. A new destination lun is created on a destination aggregate. A background copy process is then started that copies all data from a source lun on a source aggregate to the destination lun. The storage system continues to process client-originated data access requests directed to the source lun while the background copying continues. Once all the data of the source lun has been copied to the destination lun, processing of data access requests to the lun(s) is quiesced by the storage system. Lun maps of the storage system are then updated and processing of the client-originated data access requests is resumed with those requests now being directed to the destination lun.

System and method for migrating lun data between data containers

Lun clones are transferred from a primary server to a secondary server. The lun clones on the secondary server maintain the same data storage space saving relationship with backing luns of the lun clones as exists on the primary server. Incremental backups and restores of the lun clones between the primary and secondary servers involves transferring less than the total number of data blocks associated with the lun clone.

System and method for transferring and backing up luns and lun clones on primary and secondary servers

Techniques introduced here swap logical unit meta-data of a logical unit without offlining the logical unit. In accordance with the techniques, a connection between a network storage controller and a host for the logical unit is maintained while meta-data of the logical unit are swapped with another logical unit available to the network storage controller. The swapping substitutes one logical unit for another without disconnecting the host. Advantageously, the host is not required to perform operations to re-establish a connection. Various software and hardware units can implement the techniques described herein.

Method and system for logical unit substitution

Methods and systems for link-level alignment between processing modules or cards and distributed processing system are disclosed. According to one method, cards that support link level communications parameter negotiation exchange link status signal units (LSSUs) to negotiate a common set of link level communications. For link level communications between a card that supports parameter negotiation and a card that does not support link level communications parameter negotiation, LSSUs are exchanged, and the cards establish link level communications using a default set of parameter values.

Methods and systems for extensible link level alignment between modules in a distributed processing system

An automatically configurable network monitoring system includes a network monitoring communications protocol used for communications between a network monitoring client executing on a routing node () being monitored and a network monitoring server executing on a network monitoring processor (). According to the network monitoring communications protocol, the network monitoring client broadcasts a network monitoring service request message to the network monitoring servers. The service request message identifies a signaling link for which network monitoring service is being requested. The network monitoring servers provisioned to the requested provide network monitoring service respond affirmatively and thereby automatically grant network monitoring service. The network monitoring system may be completely probeless or, alternatively, used in conjunction with probe-based network monitoring devices.

Methods and systems for automatically configuring network monitoring system

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Hillsborough, NC, United States of America

David W Minnich