Abstract: The present invention is directed to a method and system for expanding volume capacity. A method of expanding volume capacity on a storage device may include receiving a request to expand capacity of a target volume by a requested amount. A first hierarchy is queried for unused capacity, wherein if unused capacity is at least one of greater than or equal to the requested amount, the unused capacity is positioned within the target volume. If unused capacity is less than the requested amount, at least one successive hierarchy is queried to locate unused capacity, which is at least one of greater than or equal to the requested amount, the successive hierarchy located at a logic block address further from a target volume logic block address than a first hierarchy logic block address. The unused capacity is then positioned to be included with the target volume.

Abstract: The present invention provides an apparatus and method for verifying and correcting storage area network (SAN) configuration information. With the apparatus and method of the present invention, configuration information is collected from components of the SAN using a SAN configuration scanning device. The configuration information collected by the SAN configuration scanning device is then compared to certified configuration parameters by a SAN configuration verification device. The comparison results in variances between the collected configuration information and the certified configuration parameters. It is then determined whether these variances are correctable or not. The variances that are correctable are corrected to reflect the certified configuration parameters by a SAN configuration correction device. Variances that are not correctable are output to an error report generation device that generates an error report for use by a SAN system administrator.