Sun Microsystems Virtual Tape Library Uživatelský manuál stáhnout pdf (Strana 245)

96267 • G Appendix C Troubleshooting 231

Case: ConnectionfailswhileexpandingtheVTLservernode

1. Check the memory consumption on the console host.

2. If memory consumption is excessive, stop unnecessary processes, and retry.

3. If you can connect, stop here.

Avoidrunningmemory‐intensiveap pli c atio n sonthis hostwhentheconsoleisin

use.

4. If you cannot connect or if memory consumption appears to be within normal

limits, contact Sun technical support.

Issue: RequestedoperationscannotbeperformedfromtheVTLconsole

Indications: Theserverexhibit ssymptomsofhighCPUutilization,suchasServer Busy or

RPCTimeoutmessages.

Diagnostics: DeterminewhetherhighCPUutilizationisnormal.

1. Check the Event Log or syslog (/var/adm/messages) for CPU-intensive activity

on the server.

Backupjobsthatbackup tomultiplevirtualorphysicaldevicesinparallel,data

compression,andencryptionallplaceheavydemandsontheCPU.

2. If CPU-intensive processes are running on the server, stop here, and retry the

console later.

TheVTLserverisbehaving

normally.

3. If CPU-intensive processes are not running on the server, if the CPU is not

actually busy, or if the problem persists, contact Sun technical support.

Issue: VTLconsoleoperat ion sare veryslow

Indications: TheVTLconsoleisabnormallysloworunresponsive.

Diagnostics: Determinethe reason.

Case: Lowhostsystemmemory

1. Check memory utilization for all running processes on the host.

2. Stop unnecessary processes.

3. If no unnecessary processes are running, provide the host with more memory.

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Sun Microsystems Virtual Tape Library Uživatelský manuál Strana 245