Emc Corporation

Pramod Kulyadi Pai

Steven Teng

Ethan D Roberts

Kenneth Fickie

Richard T Simon

Saravanan Chithambaram

Methods and systems for using watermarks to indicate alerts in a storage area network management console are disclosed. An alert provides notification of the occurrence of an event in a storage area network. An event associated with a component of the storage area network is detected. An alert level corresponding to the detected event is determined. A watermark is placed on the graphical user interface to indicate an alert. An initial characteristic of the watermark depends on the determined alert level, and the watermark is oriented to be visible at a distance from the graphical user interface. Multiple alerts may be indicated through changes in a characteristic of the watermark or by changing a watermark initially placed on the graphical user interface upon initiation of the graphical user interface.

Using watermarks to indicate alerts in a storage area network management console

Methods and apparatus for removing data from a cache are disclosed. The data may be one or more objects that are stored in a first cache. Each object stored in the first cache has an associated reference that is stored in a second cache. Each such reference has an associated timer. As a program accesses an object stored in the first cache, the timer associated with its reference is reset. A harvester process parses through the second cache over a period of time, locking a section of the second cache and determining if any timers associated with references therein have timed out. The harvester process removes any such timed-out timers from the second cache. A garbage collection process parses through the first cache, removing any objects therein that do not have an associated reference in the second cache.

Methods and apparatus for removing data from a cache

A method, apparatus and computer program product for presenting objects in an arranged fashion is presented. A group of objects is identified and a root of a tree structure for the group of objects is determined. An arrangement for grouping into subgroups objects from the group of objects is selected. A determination is made regarding whether at least a predetermined number of objects exist for forming the subgroups and when at least a predetermined number of objects exist then forming a next level of the tree structure according to the arrangement and when less than the predetermined number of objects exist then adding the objects as leaf nodes to the tree structure. The tree structure is displayed to the user.

Method and apparatus for presenting objects in an arranged fashion

A display function associated with a storage area network manager process initiates display of a respective hierarchical tree including elements of a storage area network. The hierarchical tree can include parent nodes (representing resources associated with the storage area network) that can be selectively expanded by a user for purposes of viewing sub-information associated with a respective parent resource in the tree. When a user clicks or selects a specific entry in the tree to expand it, a query object triggered by the selection notifies a respective processing function of managed objects (e.g., specific objects in a database) that are related to the selected storage area network resources. The respective processing function utilizes attribute information depending on a type of managed object in a database for purposes of reducing an amount of object data that must be retrieved from the database and identifying pertinent sub-information to update the hierarchical tree.

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Karnataka, India

Pramod Kulyadi Pai