Method for the off-road of disk-related tasks from the RAID adapter, system, program (off-road of disk-related tasks from the RAID adapter)

摘要

And without imposing a burden on the [challenge] RAID adapter, do not confuse the access to the network or the rest of the disk array, and to perform a variety of disk-related maintenance work. [MEANS FOR SOLVING PROBLEMS] The storage system includes a (HDD) hard disk drive RAID adapter, disk array switches, and the sub-processors. Disk-related operation is started in the RAID adapter. In order to (sub-or processor) disk array processor to perform the operation on more than one drive 1, RAID adapter sends a command to the processor of the enclosure. The adapter can in one processor in a single enclosure, the processor within the enclosure of a large number, and transmits the command or through the upstream switch enclosure via the disk array switches. Then, the adapter, free to perform other functions. One by one, at a time (or all) or more than one at a time, the processor starts the operation that is specified for the selected drive more than one at a time. Operation is completed, the processor sends a result, the adapter receives. Accordingly, by offloading tasks to the sub-processor dispersed, burden on RAID adapter is significantly reduced, reducing the use of system bandwidth, access to the drive (and the enclosure of the other) the other in the enclosure can be maintained. The tasks may be offloaded in this method, data erasure update drive firmware, the drive scrubbing, and secure include, but are not limited to these. [Selection] Figure Figure 1