Identify the Problem Domain
View Client
Network
View Manager
View Composer
vCenter Server
Compute
Storage

Check View Administrator Dashboard
Shows system health and any issues 

Use Event Database for initial troubleshooting
Understand the client connection process
Check Connection Broker Logs
Match and filter SessionID, User, FSP
Check View Agent Logs
Check View Desktop PCoIP Logs
Use kb.vmware.com
Use http://www.baremetalsoft.com/baretail/

Domain 1: Failure to Communicate
View client can't connect

Common Issues:
Logon failure
Black Screen
Poor quality display
Randomly Disconnected Session

Troubleshoot with:
Connection Broker Logs ( Client logs?)
Event database
Look for:
Client Connects
Client sends user/pw
Broker authentication
User has authenticated to Broker
Use the Session ID

Domain 2: Desktop Not Available

Common Issues:
No Desktop Available
Pool provisioning issues
Agent not communicating with broker
User sat at desktop login screen (SSO)

Troubleshoot with:
Connection Broker/View Agent logs
Event Database

Look for:
Broker desktop request
Broker allocates session to user
Broker attempts SSO
Broker starts session on VM
Agent responds
Broker provisioning error

Domain 3: Broken Broker

Look for:
Adam Replication
repadmin.exe /showrepl localhost:389 DC=vdi,DC=vmware,DC=int
vCenter Server Connectivity
VS_DOWN events
View Composer
VMs have been manually deleted
Causes Composer DB and VC DB to get out of sync
Composer thinks VM already exists
"Virtual Machine with Input Specification already exists"
JMS Connectivity
Split site architecture not supported (3ms responses expected)
Connect Server Logs
tracker REJOIN messages - JMS connectivity
tracker RESYNC messages - messages being delayed

Domain 4: Why is my desktop so slow?

Common Issues:
Storage IO Bottleneck
20ms or less disk latency expected
Memory contention
CPU contention
Network Issues

Look at:
vCenter Server
3rd Party Tools

What to look for:
VM %READY Time(ESXTOP)
Swapping/Ballooning
VMs per VMFS LUN (SCSI reservations)
Disk Read Latency > 20 ms