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Full Discussion: Booting off of a SAN
Top Forums UNIX for Dummies Questions & Answers Booting off of a SAN Post 302294579 by Neo on Thursday 5th of March 2009 12:29:52 PM
Old 03-05-2009
Booting off the network means that any network problem you have will effect your system at the very core. I don't recommend it for production systems unless you like making things more unreliable.

Many years ago I was working somewhere and someone has configured all the /home user accounts across the network and so every we logged in and there was any slight network problem, it was impossible to work.

Networks are not perfect. They break. Cables get kinked. There are routing problems. There are protocol bugs.

It is best to remove the network unless you absolutely have to, for example, you have a web server front end and a database back on connect on the same LAN segment. Normally, these devices are in the same rack and use very reliable cables.

If you are in the same rack and have very good cable control, then you might consider it.

Othewise, caution is advised.
 

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SYSTEMD-NETWORKD.SERVICE(8)				     systemd-networkd.service				       SYSTEMD-NETWORKD.SERVICE(8)

NAME
systemd-networkd.service, systemd-networkd - Network manager SYNOPSIS
systemd-networkd.service /lib/systemd/systemd-networkd DESCRIPTION
systemd-networkd is a system service that manages networks. It detects and configures network devices as they appear, as well as creating virtual network devices. To configure low-level link settings independently of networks, see systemd.link(5). systemd-networkd will create network devices based on the configuration in systemd.netdev(5) files, respecting the [Match] sections in those files. systemd-networkd will manage network addresses and routes for any link for which it finds a .network file with an appropriate [Match] section, see systemd.network(5). For those links, it will flush existing network addresses and routes when bringing up the device. Any links not matched by one of the .network files will be ignored. It is also possible to explicitly tell systemd-networkd to ignore a link by using Unmanaged=yes option, see systemd.network(5). When systemd-networkd exits, it generally leaves existing network devices and configuration intact. This makes it possible to transition from the initrams and to restart the service without breaking connectivity. This also means that when configuration is updated and systemd-networkd is restarted, netdev interfaces for which configuration was removed will not be dropped, and may need to be cleaned up manually. CONFIGURATION FILES
The configuration files are read from the files located in the system network directory /lib/systemd/network, the volatile runtime network directory /run/systemd/network and the local administration network directory /etc/systemd/network. Networks are configured in .network files, see systemd.network(5), and virtual network devices are configured in .netdev files, see systemd.netdev(5). SEE ALSO
systemd(1), systemd.link(5), systemd.network(5), systemd.netdev(5), systemd-networkd-wait-online.service(8) systemd 237 SYSTEMD-NETWORKD.SERVICE(8)
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