1. Module 7: Server Cluster Maintenance and Troubleshooting

2. Overview
Cluster Maintenance
Troubleshooting Cluster Service

3. Cluster Maintenance Backup Restoring the First Node
Restoring Cluster Disks
Restoring the Second Node
Evicting a Node

4. Backup Backing Up the System State Backing Up the Local Disk
Backing Up the Cluster Disk

5. Restoring the First Node
Steps For Restoring a Server Cluster:
Restore the first node
Restore the cluster disks
Restore the second node
Perform node testing

6. Restoring Cluster Disks
Restoring Disk Signature Files
Restoring the Data on the Cluster Disk
Restoring the Cluster Configuration Files

7. Restoring the Second Node
Restoring the Remaining Node(s) of a Cluster
Perform Node Testing

8. Evicting a Node Steps for Evicting a Node Back up both nodes
Verify backup
Move all groups to the remaining node
Stop Cluster service on the node to be removed
Evict the node
Unplug the server from the shared bus

9. Troubleshooting Cluster Service
Troubleshooting Tools
Examining the Cluster Log
Troubleshooting Network Communications
SCSI Configuration Problems
Group and Resource Failures
Quorum Log Corruption

10. Troubleshooting Tools
Disk Manager
Task Manager
Performance Monitor
Network Monitor
Dr. Watson
Services Snap-in

11. Examining the Cluster Log
Copy of cluster - Wordpad
Creates a new cluster group
000003b b4::2000/10/02-19:44: [CS] Cluster Service started – Cluster Node Vers
000003b b4::2000/10/02-19:44: OS Version
000003b f0::2000/10/02-19:44: [CS] Service Starting…
000003b f0::2000/10/02-19:44: [EP] Initialization…
000003b f0::2000/10/02-19:44: [DM]: Initialization
000003b f0::2000/10/02-19:44: [DM]: Loading cluster database form D:\WINNT\clu
000003b f0::2000/10/02-19:44: [DM] DmpStartFlusher: Entry
000003b f0::2000/10/02-19:44: [DM] DmpStartFlusher: thread created
000003b f0::2000/10/02-19:44: [NM] Initializing…
000003b f0::2000/10/02-19:44: [NM] Local node name = SERVER1.
000003b f0::2000/10/02-19:44: [NM] Local node ID = 1.
000003b f0::2000/10/02-19:44: [NM] Creating object for node 1 (SERVER1)
000003b f0::2000/10/02-19:44: [NM] Initializing networks.
000003b f0::2000/10/02-19:44: [NM] Initializing network interfaces.
000003b f0::2000/10/02-19:44: [NM] Initializing complete.
000003b f0::2000/10/02-19:44: [NM] Starting worker thread…
000003b f0::2000/10/02-19:44: [API] Initializing
000003b f0::2000/10/02-19:44: [FM] Worker thread running
000003b f0::2000/10/02-19:44: [LM] :LMInitialize Entry.
000003b f0::2000/10/02-19:44: [LM] :TimerActInitialize Entry.
000003b f0::2000/10/02-19:44: [CS] Service Domain Account =
000003b f0::2000/10/02-19:44: [CS] Initializing RPC server.
000003b f0::2000/10/02-19:44: [INIT] Attempting to join cluster MYCLUSTER
000003b f0::2000/10/02-19:44: [JOIN] Spawning thread to connect to sponsor 10.
000003b f0::2000/10/02-19:44: [JOIN] Spawning thread to connect to sponsor 169
File Edit View Insert Format Help
The IDs of the process and thread issuing the log entry
timestamp
event description
In the above slide, when I printed this page in hard copy, the two bottom callouts are really difficult to read in hard copy. The box is transparent, so “The Ids of the process and thread…etc” are printed on top of the cluster log, and you can see the list of numbers underneath the boxes. I would try to have the graphic artist fix this.

12. Troubleshooting Network Communications
Troubleshooting Node-to-Node Communication
Verify RPC Communication’s
Verify Cluster Heartbeats
Troubleshooting Client-to-Node Communications
Check NetBT Cache with Nbtstat
Ping IP Address
WINS Static Mappings

13. SCSI Configuration Problems
SCSI Controllers
SCSI Terminiation
SCSI Cabling

14. Group and Resource Failures
Cluster Administrator – [MYCLUSTER (MYCLUSTER)]
File View Window Help
For Help, press F1
MYCLUSTER
Groups
Cluster Group
Mygroup
SQL Group
Resources
Cluster Configuration
SERVER1
SERVER2
Name State Owner Reso
Cluster IP Address Online SERVER2 IP Ad
Cluster Name Online SERVER2 Netw
Disk W: Online SERVER2 Physi
Printer Spooler Online SERVER2 Print
Public Failed SERVER2 File S
NUM

15. Quorum Log Corruption Reset the Quorum Log
Clussvc –debug -resetquorumlog
Delete the Quorum Log
-noquorumlogging

16. Lab A: Cluster Maintenance

17. Review
Cluster Maintenance
Troubleshooting Cluster Service