Emc Corporation

Yogita Bijani

Rangarajan Suryanarayanan

Pashupati Kumar

Akhil Kaushik

Subramaniam Periyagaram

Jian Xing

Ajay Pratap Singh Kushwah

Mayank Joshi

Subramanian Periyagaram

Jian Jack Xing

A method for information management comprises intercepting an output from an application; distributing packets according to a routing scheme, wherein the packets are associated with the output, and wherein distributing the packets may occur when the application is associated with a first operating system, and may also occur when the application is associated with a second operating system; and storing the packets.

Versatile information management

Information management is disclosed. A file output from an application to an operating system is intercepted before the file output arrives at the operating system. The file output is directed towards protected data. The intercepted file output is analyzed to determine whether a predetermined type of version of the protected data has been created. In the event it is determined that the predetermined type of version of the protected data has been created at least in part because the analyzed intercepted file output includes a modification to the protected data, the protected data automatically backed up, including by storing at least a portion of the file output as a backup version of the protected data. In the event it is determined that the predetermined type of version of the protected data has not been created, the protected data is not backed up.

Backup information management

A method for information management comprises monitoring output from an application to an operating system, wherein the output is monitored substantially continuously; determining if a policy applies to data associated with the output; and executing the policy if the policy applies.

Information management

Changes are tracked by tracking a change request which when performed by a disk driver changes a portion of disk storage. The change request is allowed to pass to the disk driver to be performed by the disk driver. Information associated with the change request is stored in an operating system's persistent storage. A differential backup is performed using the information associated with the change request stored in the operating system's persistent storage after a system, which includes the disk driver and the disk storage, has shut down and restarted.

Write interceptor for tracking changes to a disk image

A technique for quiescing a file system is described. The technique includes holding a change request, flushing the file system, and releasing the change request. Flushing may include sending a flush request, determining whether a cache associated with the file system is flushed, and in the event that the cache is not flushed, resending the flush request and determining whether the cache is flushed.

File system quiescing driver

In one embodiment, a method for information management comprises monitoring output from an application, wherein the output is monitored substantially continuously; determining if the output is associated with a predetermined type of version; and saving data associated with the output if the output is associated with the predetermined type of version.

According to some embodiments, a technique for tracking changes to a disk image is disclosed. The technique comprises tracking a change request associated with a disk block; allowing the change request to pass to a disk driver; and associating the change request with an operating system's persistent storage.

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Santa Clara, CA, United States of America

Yogita Bijani