Distributive Cache Accessing Device and Method for Accelerating to Boot Remote Diskless Computers

A distributive cache accessing method for accelerating to boot remote diskless computers, installed in a distributive cache accessing device of a local diskless computer connected with a plurality of remote diskless computers and an iSCSI target having the distributive cache accessing device via a network to execute the following steps of:

• generating a iSCSI read command;
• searching if the distributive cache accessing devices of the plurality of remote diskless computers have data to be read by the iSCSI command;
• if positive, retrieving the data from the corresponding remote diskless computers having the data;
• if negative, sending the iSCSI read command to the iSCSI target to process;
• retrieving the data from the iSCSI target;
• and
• storing the data in the distributive cache accessing device of the local diskless computer.

A distributive cache accessing method for accelerating to boot remote diskless computers, installed in a distributive cache accessing device of an iSCSI target connected with at least one diskless computer having the distributive cache accessing device via a network to execute the following steps of:

• receiving an iSCSI command from a diskless computer;
• determining if the iSCSI command is an iSCSI read command;
• if the iSCSI command is an iSCSI read command, generating an OSP and a WHWL;
• determining if the distributive cache accessing device of the iSCSI target has data associated with the iSCSI read command;
• if the data are found, transmitting the data to the diskless computer;
• if the data are not found, reading the data from a storage device in the iSCSI target;
• storing the data in the distributive cache accessing device of the iSCSI target;
• transmitting the data back to the diskless computer;
• if the iSCSI command is not an iSCSI read command, determining if the received command is a pre-reading list acquiring command;
• if it is a pre-reading list acquiring command, reading data of a pre-reading list;
• transmitting the data back to the diskless computer;
• and
• if it is not a pre-reading list acquiring command, ignoring the received command and terminating.