NAS on eth1

ThomasRonshof · 08-15-2013, 05:15 AM

Hi,

I have a Cent OS using eth0 for networking with clients.

Is it possible to connect a NAS to eth1 and mounting a share on it from the Linux host ?

I was thinking that perfomance on the NAS would increase, if it has its own netcard in the Linuxserver running 1GB.

eth0 is 192.168.1.1
How should i define eth1 ?

Regards
Thomas

lleb · 08-15-2013, 07:54 AM

NAS devices are designed to stand alone. The bottle neck will not be the Ethernet connection, but the performance of the HDDs inside of the NAS, that is unless you are running on a 10BaseT network, or using a HUB instead of a Switch for your LAN.

If you have a 2nd NIC inside of your CentOS box then it should be active to begin with. You would just assign the IP the same way you did for eth0.

The path should be: /etc/sysconfig/network-scripts/ifcfg-eth#

here is mine:

Code:

[root@centos ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
TYPE="Ethernet"
HWADDR=00:00:00:00:00:00
NAME="System eth0"
ONBOOT="yes"
#BOOTPROTO="dhcp"
BOOTPROTO="static"
NM_CONTROLLED="no"
IPADDR=192.168.1.2
NETMASK=255.255.255.0
USERCTL="no"
#DEFROUTE=yes
#PEERROUTES=yes
#PEERDNS=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no

you would just set yours eth1 to what ever IP scheme you need.

ThomasRonshof · 08-15-2013, 08:00 AM

Thanks, looks simple :-)

dt64 · 08-16-2013, 06:37 AM

Depending on what exactly you want to achieve with this setup you might want to consider having the second NIC (eth1) on a different subnet than eth0.
If it's just about bandwith you could as well use bonding with both NICs on the same network.
Make sure that the whole network part supports your bandwith needs, it doesn't make sense to have 2x 1GB NIC at both ends bonded up and the switche(s) in the middle of the way can't process the amount of data...