Changing Network Configurations; Managing Settings On Network Interfaces; Tcp Status Tab - HP StoreVirtual 4000 User Manual

Changing network configurations

Changing the network configuration of a storage system may affect connectivity with the network
and application servers. Consequently, we recommend that you configure network characteristics
on individual storage systems before creating a management group or adding them to existing
clusters.
If you do need to change the network characteristics of a storage system while it is in a cluster, be
sure to follow HP's recommendations. See
(page 46).
Best practices when changing network characteristics
Plan to make network changes during off-peak hours to minimize the impact of those changes.
Make changes on one storage system at a time.
Some network changes cause the storage server to restart the SAN/iQ software services,
making the storage system unavailable for a short time. Check the Availability tab for each
storage system to see if any volumes will become unavailable if the services restart on the
storage system.
Volumes and snapshots may become temporarily unavailable while services restart. Examples
include unreplicated volumes, or snapshots that are causing a restripe of the data.
After the changes are in place, verify the iSCSI sessions or Fibre Channel active paths. You
may need to update these.

Managing settings on network interfaces

Configure or change the settings of the network interfaces in the storage systems. See for more
information.
Requirements
These settings must be configured before creating NIC bonds.

TCP status tab

Review the status of the TCP interfaces and change the speed and duplex, frame size, and NIC
flow control of an interface. Changing the speed and duplex and NIC flow control can only be
performed on interfaces that are not in a bond. The frame size can be changed on interfaces
individually or on a bonded interface.
NOTE: You cannot change the speed, duplex, or flow control of a VSA.
Review the status of the network interfaces on the TCP Status tab.
Table 12 Status of and information about network interfaces
Column
Name
46 Managing the network
"Best practices when changing network characteristics"
Description
Name of the interface. Entries vary depending on the
storage system.
bond0—The bonded interface(s) (appears only if
storage system is configured for bonding)
Motherboard:Port1
Motherboard:Port2
G4-Motherboard:Port1