HP 3PAR StoreServ 7000 Storage Troubleshooting Guide

Network
Displays Ethernet issues for administrative and Remote Copy over IP (RCIP) networks that have
been logged on the previous 24-hours. Also, reports the storage system has fewer than two nodes
with working administrative Ethernet connections.
• Check the number of collisions in the previous day log. The number of collisions should be
less than 5% of the total packets for the day.
• Check for Ethernet errors and transmit (TX) or receive (RX) errors in previous day’s log.
Format of Possible Network Exception Messages
Network -- "IP address change has not been completed"
Network "Node<node>:<type>" "Errors detected on network"
Network "Node<node>:<type>" "There is less than one day of network history for this
node"
Network -- "No nodes have working admin network connections"
Network -- "Node <node> has no admin network link detected"
Network -- "Nodes <nodelist> have no admin network link detected"
Network -- "checkhealth was unable to determine admin link status
Network Example 1
Network -- "IP address change has not been completed"
Network Suggested Action 1
The setnet command is issued to change some network parameter, such as the IP address, but
the action has not completed. Use setnet finish to complete the change, or setnet abort
to cancel. Use the shownet command to examine the current condition.
cli% shownet
IP Address Netmask/PrefixLen Nodes Active Speed Duplex AutoNeg Status
192.168.56.209 255.255.255.0 0123 0 100 Full Yes Changing
192.168.56.233 255.255.255.0 0123 0 100 Full Yes Unverified
Network Example 2
Component ---Identifier---- -----Description----------
Network Node0:Admin Errors detected on network
Network Suggested Action 2
Network errors have been detected on the specified node and network interface. Commands such
as shownet and shownet -d are useful for troubleshooting network problems. These commands
display current network counters as checkhealth shows errors from the last logging sample.
NOTE: The error counters shown by shownet and shownet -d cannot be cleared except by
rebooting a controller node. Because checkhealth is showing network counters from a history
log, checkhealth stops reporting the issue if there is no increase in error in the next log entry.
shownet -d
IP Address: 192.168.56.209 Netmask 255.255.255.0
Assigned to nodes: 0123
Connected through node 0
Status: Active
Troubleshooting Storage System Components 39