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背景
xxxxxxxxxx
开发服务器磁盘空间不足,申请挂在nas存储.
处理流程
- 评估大小
- 给总部负责存储同事发邮件
- 登陆服务器挂在
踩坑经过
从申请到总部同事存储分配过程都很顺利
-
下面进行挂载
-
执行命令 [root@ovz-big-dmp-01 ~]# mount -t nfs 172.16.138.134:/vol/abcd_big /abcd-dmp/file
x
[root@ovz-big-dmp-01 ~]# mount -t nfs 172.16.138.134:/vol/abcd_big /abcd-dmp/file
mount: 文件系统类型错误、选项错误、172.16.138.134:/vol/abcd_big 上有坏超级块、
缺少代码页或助手程序,或其他错误
(对某些文件系统(如 nfs、cifs) 您可能需要
一款 /sbin/mount.<类型> 助手程序)
有些情况下在 syslog 中可以找到一些有用信息- 请尝试
dmesg | tail 这样的命令看看。
-
问题所在
centos7默认不支持挂在nfs文件系统. 安装包:yum install nfs-utils rpcbind
-
-
再次执行命令 [root@ovz-big-dmp-01 ~]# mount -t nfs 172.16.138.134:/vol/abcd_big /abcd-dmp/file
xxxxxxxxxx
[root@ovz-big-dmp-01 ~]# mount -t nfs 172.16.138.134:/vol/abcd_big /abcd-dmp/file
等了好久。。。
毛都没有。。。
命令执行后不在报错,但是一直处于等待状态,类似于ping 逾时的现象
- 问题发现
xxxxxxxxxx
[root@ovz-big-dmp-01 ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 xx.xx.xxx.1 0.0.0.0 UG 100 0 0 eno16777984
xx.xx.xx.0 0.0.0.0 255.255.255.0 U 100 0 0 eno16777984
172.16.134.0 0.0.0.0 255.255.254.0 U 100 0 0 eno33557248
172.17.0.0 172.16.135.1 255.255.0.0 UG 100 0 0 eno33557248
[root@ovz-big-dmp-01 file]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno16777984: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether xxxx brd ff:ff:ff:ff:ff:ff
inetxxxxxxxxxx/24 brd 10.130.81.255 scope global eno16777984
valid_lft forever preferred_lft forever
inet6 fe80::250:56ff:feb3:76fc/64 scope link
valid_lft forever preferred_lft forever
3: eno33557248: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether xxxxxxxxxx brd ff:ff:ff:ff:ff:ff
inet 172.16.135.167/23 brd 172.16.135.255 scope global eno33557248
valid_lft forever preferred_lft forever
inet6 fe80::250:56ff:feb3:3cbb/64 scope link
172.16.135.167作为本机挂在nas使用,通过对比跟172.16.138.134不在一个网段,故通讯前需要路由.
从上面看本机并没有到172.16.138.134网段的路由,fuck ......
#增加一波路由
[root@ovz-big-dmp-01 ~]# ip route add 172.16.0.0/16 via 172.16.135.1 dev eno33557248
[root@ovz-big-dmp-01 ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 xx.xx.xx.1 0.0.0.0 UG 100 0 0 eno16777984
xx.xx.xx.0 0.0.0.0 255.255.255.0 U 100 0 0 eno16777984
172.16.0.0 172.16.135.1 255.255.0.0 UG 0 0 0 eno33557248
172.16.134.0 0.0.0.0 255.255.254.0 U 100 0 0 eno33557248
172.17.0.0 172.16.135.1 255.255.0.0 UG 100 0 0 eno33557248
路由有了自然就挂载成功了
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