Dell Products Inc.

Somashekar Ajjampur Manjunatha

Sujoy Sen

Sandeep Agarwal

Deepu Syam Sreedhar M

Krishna Kumar P K

A storage management method includes receiving a degrade signal indicating a degraded state of a virtual disk associated with a host system. Rebuild-flush operations may be performed. The operations may include writing, to the virtual disk and also to a hot spare drive (HSP) associated with the virtual disk, valid-modified data, stored in a host storage cache, associated with the virtual disk. In contrast, valid-unmodified storage cache data associated with the virtual disk, may be written to the HSP only. After the rebuild-flush completes, the virtual disk may be rebuilt. During rebuild, however, any cached-LBA may be skipped where traditional RAID rebuild operations are performed for un-cached LBAs only.

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Bengaluru, India

Somashekar Ajjampur Manjunatha