Storage area network (SAN) switch multi-pass erase of data...

Details Storage area network (SAN) switch multi-pass erase of data... Storage area network (SAN) switch multi-pass erase of data...

2011-04-19

2011-04-19

Elmore, Stephen C (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S004000, C711S111000, C711S112000, C711S114000, C711S150000, C711S203000, C360S057000, C360S118000, C365S185300

Reexamination Certificate

active

07930494

ABSTRACT:
Techniques are provided for performing multi-pass erase. An erase command is received at a storage area network (SAN) switch in a storage area network. The erase command is associated with a block of data on a target device. A virtual initiator is determined for performing the erase command on the block of data. Multiple bit patterns are generated using a multi-pass erase algorithm. The multiple bit patterns are generated for writing over the block of data on the target device. Repeated writes are performed over the block of data using the bit patterns. The block of data is repeatedly overwritten to remove remanence of the block of data on the target device.

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Goheer, et al., U.S. Patent Application titled “Storage Area Network (San) Switch Multi-Pass Erase Of Data On Target Devices,” filed Sep. 10, 2007, U.S. Appl. No. 11/852,945.

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