Method for processing a cache barrier command for a disk array and device for the same
AssigneeKorea Advanced Institute of Science and Technology
InventorYoujip WON
Life of this patent
Estimating the term…
Abstract
Provided is a method of controlling a RAID controller, the method including generating, by the RAID controller, a command sequence, and transmitting, by the RAID controller, when a first cache barrier command included in the command sequence is identified, at least one cache barrier command to an arbitrary disk constituting a RAID before transmitting a first write command arranged after the first cache barrier command in the command sequence to the arbitrary disk.
Claims15
A method of controlling RAID controller, comprising:
- generating, by the RAID controller, a command sequence;
- and
- transmitting, by the RAID controller, when a first cache barrier command included in the command sequence is identified, at least one cache barrier command to an arbitrary disk constituting a RAID before transmitting a first write command arranged after the first cache barrier command in the command sequence to the arbitrary disk.
A RAID controller that is adapted to transmit, when a first cache barrier command included in a command sequence used to generate a stripe is identified, at least one cache barrier command to an arbitrary disk constituting a RAID before transmitting a first write command arranged after the first cache barrier command in the command sequence to the arbitrary disk.
Dependencies are inferred from the claim text.