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Special Forums Hardware Filesystems, Disks and Memory Differences between SAN and NAS Post 43108 by rhfrommn on Tuesday 11th of November 2003 05:32:37 PM
Old 11-11-2003
I've always been kinda fuzzy on the difference between the two myself, but here is my basic understanding of it. If anybody has better information or definitions of the two I'd be happy to be corrected . . . .

SAN is where the storage runs its own separate network, always (with maybe some rare exceptions?) over fiber. There are separate switches that connect the storage devices to each other, and you have host bus adapters in the servers that connect into those switches to access the storage.

NAS is basically just adding huge fileserver type boxes to the network. It may have direct connections to the servers or may just be accessed over the regular ethernet network.
 

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ifplugd.conf(5) 						File Formats Manual						   ifplugd.conf(5)

NAME
ifplugd.conf - ifplugd configuration file SYNOPSIS
/etc/default/ifplugd DESCRIPTION
ifplugd.conf is the configuration file for ifplugd. It is a shell script that is sourced by the init script starting the daemon. It shall be used to set environment variables which are interpreted by the init script: OPTIONS
INTERFACES Specifies the ethernet interfaces to monitor. It has to contain a space seperated list of network interfaces names. Most users will probably use "eth0" here, however you may add additional interfaces for monitoring more than one device. A special value is sup- ported as well: "auto" will enable a more or less working auto detection of available network devices. This won't make you happy when using network module auto loading, since it cannot detect currently unloaded network devices. HOTPLUG_INTERFACES Specifies the interfaces that can be hotplugged (like interfaces on PCMCIA, USB or WLAN adapters). "all" can be used to make the udev script start an ifplugd process for any hotplugged interfaces (except those already listed in INTERFACES). ARGS Additional command line arguments for ifplugd invocation. See ifplugd(8) for further information. ARGS_iface If specified for an interface this variable takes precedence over ARGS. This may be useful if more than one network device is present. SEE ALSO
ifplugd(8) COMMENTS
This man page was written using xmltoman(1) by Oliver Kurth. Manuals User ifplugd.conf(5)
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