Abstract: A method of performing a full data reconstruction in a redundant array of independent disks (RAID) system with a protection pool of storage units includes determining that a physical disk of a storage cluster has been removed from service. The physical disk includes a set of physical extents and at least one physical extent of the set of physical extents is associated with an array of physical extents distributed across physical disks of the storage cluster. The method further includes transmitting a message to one or more array groups of the physical disks, to allocate replacement physical extents and assign the replacement physical extents to the array of physical extents and initiating reconstruction of data from the set of physical extents of the physical disk to the replacement physical extents.

Abstract: A method of adding a disk in a redundant array of independent disks (RAID) system with a protection pool of storage units includes receiving a request to add a new physical disk to a storage cluster and partitioning the new physical disk into a set of physical extents. The method further includes allocating one or more physical extents of the set of physical extents of the new physical disk to at least one array of physical extents, wherein the array of physical extents is distributed across physical disks of the storage cluster.

Abstract: A method of performing a reconstruction of data in a redundant array of independent disks (RAID) system with a protection pool of storage units includes receiving a request to perform a reconstruction of a first set of physical extents stored on a first physical disk of a set of physical disks. Each physical extent of the first set of physical extents is associated with an array of a second set of physical extents. The second set of physical extents is distributed across the set of physical disks. The method further includes allocating a third set of physical extents on one or more physical disks of the set of physical disks other than the first physical disk, and distributing data from each of the first set of physical extents of the first physical disk to a corresponding physical extent of the third set of physical extents.

Abstract: A method of performing a migration of a physical extent in a redundant array of independent disks (RAID) storage system with a protection pool of storage units includes identifying a first physical extent of a first physical disk to be migrated to a second physical disk, wherein the first physical extent is associated with an array of physical extents distributed across physical disks of a storage cluster. The method further includes assigning a second physical extent from the second physical disk to the array to replace the first physical extent and migrating data from the first physical extent of the first physical disk to the second physical extent of the second physical disk.

Abstract: A method of performing a full data reconstruction in a redundant array of independent disks (RAID) system with a protection pool of storage units includes determining that a physical disk of a storage cluster has been removed from service. The physical disk includes a set of physical extents and at least one physical extent of the set of physical extents is associated with an array of physical extents distributed across physical disks of the storage cluster. The method further includes transmitting a message to of the physical disks, to allocate replacement physical extents and assign the replacement physical extents to the array of physical extents and initiating reconstruction of data from the set of physical extents of the physical disk to the replacement physical extents.

Abstract: A method of performing a reconstruction of data in a redundant array of independent disks (RAID) system with a protection pool of storage units includes receiving a request to perform a reconstruction of a first set of physical extents stored on a first physical disk of a set of physical disks. Each physical extent of the first set of physical extents is associated with an array of a second set of physical extents. The second set of physical extents is distributed across the set of physical disks. The method further includes allocating a third set of physical extents on one or more physical disks of the set of physical disks other than the first physical disk, and distributing data from each of the first set of physical extents of the first physical disk to a corresponding physical extent of the third set of physical extents.

Abstract: A method of adding a disk in a redundant array of independent disks (RAID) system with a protection pool of storage units includes receiving a request to add a new physical disk to a storage cluster and partitioning the new physical disk into a set of physical extents. The method further includes allocating one or more physical extents of the set of physical extents of the new physical disk to at least one array of physical extents, wherein the array of physical extents is distributed across physical disks of the storage cluster.

Abstract: A method of performing a migration of a physical extent in a redundant array of independent disks (RAID) storage system with a protection pool of storage units includes identifying a first physical extent of a first physical disk to be migrated to a second physical disk, wherein the first physical extent is associated with an array of physical extents distributed across physical disks of a storage cluster. The method further includes assigning a second physical extent from the second physical disk to the array to replace the first physical extent and migrating data from the first physical extent of the first physical disk to the second physical extent of the second physical disk.