Small computer system interface input output (SCSI IO) referral

摘要

The method includes receiving a command at a first storage system of a block storage cluster. The command is transmitted by the initiator system to the first storage system via a network and includes a request for data. The method further includes transferring the stored data from the first storage system to the initiator system via the network when data requested in the data request is stored by the first storage system. The method further includes transmitting a referral response from the first storage system to the initiator system when a portion of the data requested in the data request is not stored by the first storage system, but is stored by a second storage. system of the block storage cluster.

主权项

1. A method for communication between an initiator system and a block storage cluster, comprising: receiving a command at a first storage system, the command being transmitted by the initiator system to the first storage system of the block storage cluster via a network, the command being associated with data, wherein the command includes a block storage protocol request directed to the data; and when a portion of the data associated with the command is not stored by the first storage system, but is stored by a second storage system, transmitting a referral response from the first storage system to the initiator system, wherein the referral response provides information for directing the initiator system to transmit a second command to the second storage system, wherein the second command is associated with the portion of the data stored by the second system, and wherein the second command includes a block storage protocol request directed to the portion of the data.