Patent ID: 9311195
Filing Date: 2016-04-12
CPC Classification: G06F

Claim Text:
1. A method for collecting statuses on a plurality of paths, the method comprising: collecting a list of path identifiers to a logical unit number (LUN), and in response, determining that at least one additional path remains untraversed, and in response, issuing a Small Computer System Interface (SCSI) read command directed to a first at least one additional path; determining a failure with SCSI error and status set to reservation conflict for a read command directed to the first at least one additional path, and in response, subsequently determining that at least a second additional path remains untraversed, and in response, subsequently issuing a SCSI read command directed to the second additional path; and determining an absence of a Small Computer System Interface (SCSI) read command failure with SCSI error and status set to reservation conflict with respect to the second additional path, and in response, returning a current path identifier corresponding to the second additional path.