In Windows Server 2003, you can use the ManageDisksOnSystemBuses DWORD registry entry to enable the system boot disk, the pagefile disks, and the cluster disks to be on the same bus.
Note After the cluster is installed and configured, an error message that resembles the following may be logged in the %Windir%\Cluster\Cluster.log file:
INFO Physical Disk <Disk Q:>: [DiskArb]- DisksArbitrate -.
INFO Physical Disk <Disk Q:>: [DiskArb] DisksOpenResourceFileHandle: Attaching to disk with signature eb14995a
INFO Physical Disk <Disk Q:>: [DiskArb] DisksOpenResourceFileHandle: Disk unique id present trying new attach
ERR Physical Disk <Disk Q:>: [DiskArb] Signature of disk has changed or failed to find disk with id, old signature 0xeb14995a new signature 0xeb14995a, status 2
ERR Physical Disk <Disk Q:>: SCSI: Attach, error attaching to signature eb14995a, error 2.
ERR Physical Disk <Disk Q:>: Arbitrate: Unable to attach to signature eb14995a. Error: 2.
INFO [MM] MmSetQuorumOwner(0,0), old owner 1.
ERR [FM] FmGetQuorumResource failed, error 2.
ERR [INIT] ClusterForm: Could not get quorum resource. No fixup attempted. Status = 5086
INFO [INIT] Cleaning up failed form attempt.
ERR [INIT] Failed to form cluster, status 5086.
ERR [CS] ClusterInitialize failed 5086
WARN [INIT] The cluster service is shutting down.
INFO [EVT] EvShutdown
WARN [FM] Shutdown: Failover Manager requested to shutdown groups.
INFO [FM] FmpCleanupGroups: Entry
INFO [FM] FmpCleanupGroups: Exit
INFO [Dm] DmShutdown
INFO [DM] DmpShutdownFlusher: Entry
INFO [DM] DmpShutdownFlusher: Setting event
INFO [DM] DmpRegistryFlusher: got 0
INFO [DM] DmpRegistryFlusher: exiting
WARN [MM] MMLeave is called when rgp=NULL.
ERR [CS] Service Stopped. exit code = 5086 Where error 5086 = The quorum disk could not be located by the cluster service.
INFO Physical Disk <Disk Q:>: [DiskArb] DisksOpenResourceFileHandle: Attaching to disk with signature eb14995a
INFO Physical Disk <Disk Q:>: [DiskArb] DisksOpenResourceFileHandle: Disk unique id present trying new attach
ERR Physical Disk <Disk Q:>: [DiskArb] Signature of disk has changed or failed to find disk with id, old signature 0xeb14995a new signature 0xeb14995a, status 2
ERR Physical Disk <Disk Q:>: SCSI: Attach, error attaching to signature eb14995a, error 2.
ERR Physical Disk <Disk Q:>: Arbitrate: Unable to attach to signature eb14995a. Error: 2.
INFO [MM] MmSetQuorumOwner(0,0), old owner 1.
ERR [FM] FmGetQuorumResource failed, error 2.
ERR [INIT] ClusterForm: Could not get quorum resource. No fixup attempted. Status = 5086
INFO [INIT] Cleaning up failed form attempt.
ERR [INIT] Failed to form cluster, status 5086.
ERR [CS] ClusterInitialize failed 5086
WARN [INIT] The cluster service is shutting down.
INFO [EVT] EvShutdown
WARN [FM] Shutdown: Failover Manager requested to shutdown groups.
INFO [FM] FmpCleanupGroups: Entry
INFO [FM] FmpCleanupGroups: Exit
INFO [Dm] DmShutdown
INFO [DM] DmpShutdownFlusher: Entry
INFO [DM] DmpShutdownFlusher: Setting event
INFO [DM] DmpRegistryFlusher: got 0
INFO [DM] DmpRegistryFlusher: exiting
WARN [MM] MMLeave is called when rgp=NULL.
ERR [CS] Service Stopped. exit code = 5086 Where error 5086 = The quorum disk could not be located by the cluster service.
Note The disk signature that is logged as a problem is not changed. There is no problem with the disk signature.