NFS部署

NFS

Our configuration is going to use NFS for both primary and secondary storage. We are going to go ahead and setup two NFS shares for those purposes. We’ll start out by installing nfs-utils.

# yum -y install nfs-utils

We now need to configure NFS to serve up two different shares. This is handled comparatively easily in the /etc/exports file. You should ensure that it has the following content:

/secondary *(rw,async,no_root_squash,no_subtree_check)
/primary *(rw,async,no_root_squash,no_subtree_check)

You will note that we specified two directories that don’t exist (yet) on the system. We’ll go ahead and create those directories and set permissions appropriately on them with the following commands:

# mkdir /primary
# mkdir /secondary

CentOS 6.x releases use NFSv4 by default. NFSv4 requires that domain setting matches on all clients. In our case, the domain is cloud.priv, so ensure that the domain setting in /etc/idmapd.conf is uncommented and set as follows: Domain = cloud.priv

Now you’ll need uncomment the configuration values in the file /etc/sysconfig/nfs

LOCKD_TCPPORT=32803
LOCKD_UDPPORT=32769
MOUNTD_PORT=892
RQUOTAD_PORT=875
STATD_PORT=662
STATD_OUTGOING_PORT=2020

Now we need to configure the firewall to permit incoming NFS connections. Edit the file /etc/sysconfig/iptables

-A INPUT -s 172.16.10.0/24 -m state --state NEW -p udp --dport 111 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p tcp --dport 111 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p tcp --dport 2049 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p tcp --dport 32803 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p udp --dport 32769 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p tcp --dport 892 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p udp --dport 892 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p tcp --dport 875 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p udp --dport 875 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p tcp --dport 662 -j ACCEPT
-A INPUT -s 172.16.10.0/24 -m state --state NEW -p udp --dport 662 -j ACCEPT

Now you can restart the iptables service with the following command:

# service iptables restart

We now need to configure the nfs service to start on boot and actually start it on the host by executing the following commands:

# service rpcbind start
# service nfs start
# chkconfig rpcbind on
# chkconfig nfs on

 

showmount -e 172.16.4.64