International Business Machines Corporation
Host initiated link reset in a storage area network

Abstract:

Embodiments include performing a host-initiated link reset in a storage area network (SAN). Aspects include identifying, by a host in communication with the SAN, each link in the SAN, wherein each link is defined by a pair of ports. Aspects also include obtaining, by the host, a buffer credit balance for each port in the SAN and calculating, by the host, a buffer credit imbalance for each link in the SAN. Aspects further include causing a reset of the link based on a determination that the buffer credit imbalance for a link exceeds a threshold value.