HP Store Once Backup System 2700, 4500 and 4700 Installation and Configuration Guide

12 Troubleshooting
Use the information in this chapter to troubleshoot problems. More detailed troubleshooting
information will be made available at http://www.hp.com/support.
This chapter provides troubleshooting information on:
• Connecting to the network (page 106)
• Connecting to the StoreOnce Backup System from the backup application (page 107)
• Performance (page 107)
• Power off and power on (page 107)
• Licensing problems (page 108)
• Problems expanding storage (page 109)
• Cannot connect to NAS share (page 109)
• Cannot access a storage shelf (page 109)
Connecting to the network
If you cannot access the StoreOnce target device on the network, please check the following:
1. Regardless of the network configuration mode and interface type, please ensure that there is
a CAT-5E (or above) Ethernet cable connected to network port.
2. Check that the LEDs are flashing on the LAN Port. (See also Understanding LEDs (page 97).)
• If no LEDs are flashing, there is no network connection – check the Ethernet cable or
consult your network administrator.
• If LEDs are flashing, check that you have the correct IP address for your HP StoreOnce
Backup system. Are you using DHCP or Static IP addressing for your HP StoreOnce Backup
system? If you are unsure of your settings, please use the StoreOnce CLI command:
# net show status all
3. Use the StoreOnce CLI command, net ping, to check that you can ping another network IP
in the configured subnet. Ping a known IP address in each configured subnet and also check
that you can ping the StoreOnce system from another system in that same subnet to check that
ping works in both directions. If it fails, check the network configuration on the StoreOnce
system is correct for the subnet. Also, check that the subnet is working correctly by ping testing
between other systems in the subnet experiencing an issue.
4. Is your network running IPv4 mode?
• IPv6 mode is not supported.
• Ensure that you have selected the correct IP Address for the network you are using.
• At this time, the HP StoreOnce Backup system does not support DHCPv6.
5. Is backup running across a Virtual LAN?
• VLAN tagging is supported, but must be enabled on the portset and configured correctly.
• Make sure that the correct VLAN tag IDs for each VLAN subnet have been configured
during configuration.
6. Is the StoreOnce appliance configured for network bonding mode 4, where LACP is used. If
this is the case, both the StoreOnce appliance and network switch must be configured for
LACP. Similarly, if you were using LACP and have changed to another mode, you must disable
LACP on both the network switch and the StoreOnce appliance.
7. If you still cannot access the HP StoreOnce Backup system, contact HP Support.
106 Troubleshooting