PROBLEM: (QAR.82428) (PATCH ID: TCR510-005) ******** The Quorum disk becomes inaccessible if manually adding Quorum disk by the command "clu_quorum -d add" because the PR flag is not cleaned up. However; it will work in the next reboot. A member cannot boot under specific hardware due to the CFS mount fails because of the PR flag is not cleaned up. PROBLEM: (84515, 84489, 83411, 83297, 83658) (PATCH ID: TCR510-021) ******** This patch fixes several problems, including addressing the need for IOCTL for remote DRD, adding clean up for failed remote closes for non-disks, fixing error returns on failed tape/changer closes and fixes to tape deadlock experienced in netbackups. PROBLEM: (83065) (PATCH ID: TCR510-009) ******** This patch fixes an issue with a tape/changer failing to correctly report a close failure of a device in a cluster environment. PROBLEM: (83038, N/A) (PATCH ID: TCR510-016) ******** This patch addresses two issues: - A problem which results in a system panic while doing tape failovers. - A node panic during fiber port disables. PROBLEM: (83370) (PATCH ID: TCR510-011) ******** This patch fixes an issue with a tape/changer giving back busy on open if a close from a remote node failed. PROBLEM: (82423) (PATCH ID: TCR510-022) ******** This patch provides TCR portion of the functionality to support EMC storage boxes that support Persistent Reserves (SCSI command set) as defined by the final SCSI specification. PROBLEM: (83297) (PATCH ID: TCR510-012) ******** This patch fixes an issue with requests being stuck on a failed disk in a cluster