Dell Products Inc.

Ashokan Vellimalai

Sandeep Agarwal

Deepu Syam Sreedhar M

Anup Atluri

Amit Pratap Singh

A method for copying data from a storage device that has been identified for replacement or has failed to a spare storage device. The method includes a storage controller tracking input/output statistics for several storage devices. The storage controller determines if a first storage device storing first data has been identified for replacement within the storage devices. In response to the first storage device having been identified for replacement, a first least written to data address space within the first storage device is determined based on the input/output statistics. First data contained in the first least written to data address space is copied from the first storage device to the spare storage device.

System and method for replacing storage devices

Methods and systems for efficient rebuild of storage devices in a RAID may include generating a data-modified map of a storage device. The data-modified map may be updated when a RAID virtual device associated with the storage device is degraded to indicate write operations. The data-modified map may be used to rebuild selective portions of the storage device, instead of performing a full rebuild. The data-modified map may also be used to perform a full rebuild of the storage device.

Efficient rebuild of storage devices in a redundant array of independent disks (RAID)

An information handling system includes a plurality of physical disks, a memory to store metadata for the physical disks, and a controller. The controller is configured to communicate with the physical disks and with the memory. The controller to receive a request to enable a redundant array of independent disks (RAID) mode on the physical disks, to allocate a portion of the memory to store the metadata while in the RAID mode, to store the metadata for the physical disks in each of the physical disks and in the portion of the memory, and to update and synchronize the metadata in response to a configuration change of the physical disks.

System and method for providing consistent metadata for RAID solutions

In one embodiment, a system includes a processor and a memory communicatively coupled to the processor. The processor is configured to receive a write request associated with a cache pool, which comprises a plurality of disks. The write request comprises data associated with the write request. The processor is additionally configured to select a first disk from the plurality of disks using a life parameter associated with the first disk. The processor is further configured to cause the data associated with the write request to be written to the first disk.

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Bengaluru, India

Ashokan Vellimalai