NEC Express5800/320Fc Manual download pdf (Page 73)

System Backup and Disaster Recovery

Setting Up the ftServer System 5-25

System Backup and Disaster Recovery

Your ftServer system provides many safeguards against losing data due to hardware

failures. However, it cannot cover all contingencies, so it is still important to perform

regular backups and enact a good disaster-recovery program.

Ethernet Devices

Network interface naming on ftServer systems running a supported Linux

distribution

together with Express Builder is different from that on other Linux systems. On ftServer

systems, physical devices are given names corresponding to their hardware location.

After installing Express Builder, the interfaces associated with the Ethernet adapters are

operational. Multiple interfaces can be bonded together in a channel-bonding interface.

This section discusses the following topics:

•

‘‘Physical Device Naming”

•

‘‘Monitoring and Configuring Channel-Bonding Interfaces”

•

‘‘MAC Addresses”

Physical Device Naming

On many Linux systems, Ethernet devices are normally assigned names based on the

order of discovery at system startup. The names begin with the letters “eth,” followed

by a number starting with 0 and counting up. This is convenient because the first (and

often only) device on a host is predictably named eth0 and can be configured without

detailed knowledge of the device type.

On an ftServer system, configuration may change dynamically when hardware failures

occur, repairs are made, or when an administrator adds or removes components.

Creating new Ethernet device names when new hardware is installed, tracking the

name of an device while it is removed and replaced and matching it up again, or

deleting the name would be difficult and the results confusing.

Instead, Express Builder assigns to network devices names that are derived from their

physical location in the system.

Table 5-2 shows the names of the embedded Ethernet

devices in ftServer CPU-I/O enclosures.

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 155 156

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NEC Express5800/320Fc Manual Page 73