Patent ID: 9563374
Date: 2017-02-07
CPC Classifications: G06F,H04L

Claim:
1. A storage proxy method used in a storage area network (SAN) comprising a server, a SAN device coupled to the server and received at least one command, and a first and a second storage systems coupled to the SAN device, wherein the first storage system includes a first logical unit, the second storage system includes a second logical unit mirrored with the first logical unit, where the first and second logical units combine to form a first mirrored logical unit, and each of the logical units has a specific identity, the storage proxy method comprising steps of: selecting one of the logical units of one of the first and second storage systems as a first proxy logical unit; simulating the first mirrored logical unit as a first virtual logical unit in the SAN device, wherein the first virtual logical unit has a first virtual identity the same as the identity of the first proxy logical unit; and providing a transparent communication of management functions between the server and the first proxy logical unit via the first virtual logical unit, wherein the at least one command related to the first virtual identity directly bypasses the first virtual logical unit to be free from being translated, and the server and the first and the second storage systems transparently pass therebetween the at least one command.