Abstract: A storage controller includes a storage controller memory to store virtual disk metadata including an original stripe size (OSS) field and a logical stripe size (LSS) field, and a cache memory having an OSS buffer and a LSS buffer. The storage controller stores a first block size in the OSS field, configures a RAID array to provide storage blocks of the first block size based on the OSS field, stores a second block size in the LSS field, receives a first data transaction that includes a first data block of the second block size based upon the LSS field, maps the first data block from the second block size to the first block size, and executes the first data transaction on the RAID array using the first block size.

Abstract: A storage controller includes a storage controller memory to store virtual disk metadata including an original stripe size (OSS) field and a logical stripe size (LSS) field, and a cache memory having an OSS buffer and a LSS buffer. The storage controller stores a first block size in the OSS field, configures a RAID array to provide storage blocks of the first block size based on the OSS field, stores a second block size in the LSS field, receives a first data transaction that includes a first data block of the second block size based upon the LSS field, maps the first data block from the second block size to the first block size, and executes the first data transaction on the RAID array using the first block size.

Abstract: A RAID controller is provided for each host sharing a RAID. Each RAID controller can determine whether another host is sharing the RAID and assume a master or slave status with respect to rebuild operations for the shared disk. The master controller may then manage any rebuild operations on rebuild disks within the RAID.

Abstract: A RAID controller is provided for each host sharing a RAID. Each RAID controller can determine whether another host is sharing the RAID and assume a master or slave status with respect to rebuild operations for the shared disk. The master controller may then manage any rebuild operations on rebuild disks within the RAID.

Abstract: A RAID controller is provided for each host sharing a RAID. Each RAID controller can determine whether another host is sharing the RAID and assume a master or slave status with respect to rebuild operations for the shared disk. The master controller may then manage any rebuild operations on rebuild disks within the RAID.

Abstract: A storage architecture and method for managing the operation of a network in a RAID environment is provided in which a storage management agent is included in each server node of the network. The storage management agents monitor the status of the drives of the storage array in shared storage. If a storage management agent identifies a failed drive, the storage management agent monitors the rebuild of the degraded RAID volume. During the rebuild of a degraded RAID volume, the storage management agent determines if a server node has failed, and, if required, initiates the transfer of the RAID rebuild tasks of the failed server node to another server node.

Abstract: A system and method for prioritizing disk access for a shared-disk storage system are disclosed. The system includes a cluster of computing systems coupled via a network, wherein the cluster of computing systems includes at least two nodes. A storage system is coupled to the network. The at least two nodes each may access the storage system. A high-priority buffer stores requests from the cluster of computing systems for high-priority information stored in the storage system, and a low-priority buffer stores requests from the cluster of computing systems for low-priority information stored in the storage system. A storage-system controller serves requests stored in the high-priority buffer before serving requests stored in the low-priority buffer.

Abstract: A RAID controller is provided for each host sharing a RAID. Each RAID controller can determine whether another host is sharing the RAID and assume a master or slave status with respect to rebuild operations for the shared disk. The master controller may then manage any rebuild operations on rebuild disks within the RAID.