HP StoreEver Tape Libraries Failover User Guide (5697-3323, June 2014)
Table Of Contents
- HP StoreEver Tape Libraries Failover User Guide
- Contents
- 1 Overview
- 2 Enabling basic path failover
- 3 Installing advanced path failover
- 4 Preparing the switches and hosts for failover
- 5 Configuring failover for the HP StoreEver ESL G3 Tape Libraries
- 6 Configuring failover for HP StoreEver MSL6840 Tape Libraries
- 7 Configuring failover for other HP StoreEver MSL Tape Libraries
- 8 Installing and using Windows advanced path failover drivers
- 9 Installing and using Linux advanced path failover drivers
- 10 Installing and using HP-UX advanced path failover drivers
- 11 Troubleshooting failover operation
- 12 Advanced troubleshooting techniques
- 13 Support and other resources
- A Data Protector device discovery with advanced path failover
- Index
Table 3 Event Log Entries (continued)
MessageSeverityEvent
Path failure detected on SCSI Port %s
Bus %3 Target Id %4 Logical Unit %5
ErrorPath failure detected
Failover session established on SCSI
Port %2 SCSI Bus %3 Target Id %4
Logical Unit %5
InformationalFailover session established
Failover session establishment error on
SCSI Port %2 SCSI Bus %3 Target Id
%4 Logical Unit %5. Reason code %6.
ErrorFailover session establishment error
The reason code for a failover session establishment error is a Windows system error number.
Because there is no particular action that the user can take that depends upon the error code, the
values are not described here. The reason code should be included with the rest of the message
in any report sent to technical support.
For simplified viewing, the Windows system Event Log may be filtered using the 'Actions' panel
and selecting just events from HPtapeFailover_filt and HPtapeFailover_mpio. Including
events from UserPnp may also provide additional helpful information.
Diagnostic application
The Advanced Failover Diagnostic application communicates with the drivers to obtain the state
of failover sessions. The diagnostic application is installed with the driver and can be found in the
driver installation directory, C:\Program Files\Hewlett-Packard\Advanced Failover
Drivers\Utils.
The application consists of two files, HPAdvFoDgn.exe and HPtapeFailover_mpio.dll.
Operation
The diagnostic application is started by double-clicking its icon. It displays a windows like the
window shown in Figure 19 (page 55). The window contains four panes:
54 Troubleshooting failover operation