Patent ID: 8756370
Filing Date: 2014-06-17
Classification: G06F

Abstract:
1. A method for use in upgrading disk drive firmware in a data storage environment, the method comprising: selecting a first physical disk from a set of physical disks, the first physical disk having firmware; wherein the set of physical disks are mapped to a set of logical disks; wherein the mapping of the set of physical disks to the set of logical disks includes a redundant array of inexpensive disks (RAID) system; removing the first physical disk; wherein based on the RAID system, removal of the first physical disk is transparent to input/output (I/O) on the set of logical disks; upgrading the firmware of the first physical disk while allowing I/O access to the set of logical disks; wherein the allowed I/O access occurs on the set of logical disks while the first physical disk is removed, wherein the allowed I/O includes reads and writes on the set of logical disks; wherein the data storage environment is enabled to determine if the upgrading of the firmware of the first physical disk was successful; and based a negative determination, marking the firmware upgrade of the first physical disk as bad to inhibit an upgrade of firmware of other drives.