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13 troubleshooting, Connecting to the network – HP StoreOnce Backup User Manual

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13 Troubleshooting

Use the information in this chapter to troubleshoot problems. More detailed troubleshooting
information can be found at

http://www.hp.com/support

.

This chapter provides troubleshooting information on:

Connecting to the StoreOnce Backup System from the backup application

Connecting to the network

Using the 10-Gb ports

Performance

Web Management Interface errors and warnings

Power On/Off problems

Cannot connect to Web Management Interface

NFS State handle error

Cannot authenticate an iSCSI session

Diagnostic Fibre Channel device (page 130)

If the HP D2D runs out of space

Cannot access a storage shelf

Backup or replication fails

Recovering devices that have failed to start or have become read-only

StoreOnce Backup System configuration problems

Upgrade licenses

Replacement of hardware

Upgrades to component parts

Connecting to the StoreOnce Backup System from the backup application

Make sure you have the latest version or software patches for the backup application. Please see

http://www.hp.com/go/connect

or

http://www.hp.com/go/ebs

for supported applications.

Stop and restart the backup application services after the backup device has been discovered. If
you still cannot access the device, check Device Manager to make sure it is accessible from the
host.

Make sure that the iSCSI initiator is connected to the devices and log on to them, if they are
not, configure them on the Targets tab of the iSCSI Initiator.

If it is not accessible, rerun Discovery.

NOTE:

There are practical limitations on the number of devices that each host and FC switch or

HBA can access. It is possible to configure more drive and library devices than a host can access.
The limit for Windows or Linux hosts using the iSCSI interface is 64. Using the Fibre Channel
connection there is a theoretical limit of 255 devices per FC port on a host or switch, but the actual
limit is usually lower due to switch or host port imposed limits. It is recommended that no more
than 64 devices are configured for use by a single host.

Connecting to the network

NOTE:

If you have selected the Link aggregation mode, ensure that switch is configured correctly.

Connecting to the StoreOnce Backup System from the backup application

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