HP StorageWorks Enterprise File Services WAN Accelerator 3.0.4 deployment guide (AG421-96001, March 2007)

HP STORAGEWORKS ENTERPRISE FILE SERVICES WAN ACCELERATOR DEPLOYMENT GUIDE 5
CONTENTS
Configuring TACACS+ Authentication in the HP EFS WAN
Accelerator....................................................................................... 117
Basic Steps.................................................................................. 118
Chapter 13 Troubleshooting Deployment Problems ................................ 119
Problem: Duplex Mismatch.............................................................. 120
Solution: Ensure Speed and Duplex Match................................ 120
Solution: Manually Set Speed and Duplex Settings................... 120
Solution: Use an Intermediary Hub or Switch ........................... 121
Problem: Inability to Access Files During WAN Disruption............ 121
Solution: Use Proxy File Service ............................................... 121
Problem: Network Asymmetry......................................................... 121
Solution: Use Connection Forwarding....................................... 122
Solution: Use Virtual In-Path Deployment................................. 123
Solution: Deploy a Four-Port HP EFS WAN Accelerator.......... 123
Problem: Old Anti-Virus Software ................................................... 124
Solution: Upgrade Anti-Virus Software ..................................... 124
Similar Problems ........................................................................ 124
Problem: Packet Ricochet................................................................. 124
Solution: Add In-Path Routes..................................................... 124
Solution: Use Simplified Routing .............................................. 125
Problem: Router CPU Spike After WCCP Configuration................ 125
Solution: Check Internetwork Operating System
Compatibility.............................................................................. 125
Solution: Use Inbound Redirection ............................................ 125
Solution: Use Inbound Redirection with Fixed-Target
Rules........................................................................................... 126
Solution: Use Inbound Redirection with Fixed-Target
Rules and Redirect List .............................................................. 126
Solutions: Base Redirection on Ports Rather than ACLs........... 126
Solution: Use Policy-Based Routing.......................................... 126
Problem: Server Message Block Signed Sessions............................ 126
Solution: Enable Secure-CIFS.................................................... 128
Solution: Disable SMB Signing with Active Directory ............. 128
Similar Problems ........................................................................ 128
Problem: Unavailable Opportunistic Locks...................................... 129
Solution: None Needed............................................................... 129
Similar Problems ........................................................................ 129
Problem: Underutilized Fat Pipe....................................................... 130
Solution: Enable High-Speed Transmission Control
Protocol ...................................................................................... 130
Glossary ....................................................................................................... 131
Index ....................................................................................................... 137