nfs – 中年韭菜的自我关爱

hyper-v下的nfs磁盘性能

muyunyying — Sun, 16 Aug 2015 08:02:11 +0000

windows ahci单盘，hanewin nfs server共享ntfs硬盘目录

hyper-v安装dsm5.2和ubuntu server 15.04，vhd都在ssd上

dsm不受hyper-v支持，ubuntu原生3.2集成服务

只测了一下大文件拷贝

2g文件，dsm上传速度在50-70MB/s之间，可以看作60MB左右，

Legacy网卡果然只能随便用用，性能就不要想了

另外5g文件上传失败，不知道是nfs传输限制还是dsm问题

ubuntu上传6g文件，跑到本地硬盘上限95MB/s，可见千兆网速毫无压力

是不是Hyper-v windows下的10g网速就不知道咧~

ubuntu nfs 挂载权限问题

muyunyying — Thu, 13 Aug 2015 07:56:29 +0000

ubuntu默认没有安装nfs-common包，使用mount -t nfs 会报错：

for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.

aptitude install nfs-common

mount -t nfs 192.168.1.200:/owncloud /home/www-data/owncloud-data

这样挂载以后root权限会覆盖目标目录权限

umount /home/www-data/owncloud-data

网上有人说用cifs共享就可以指定用户，其实hanewin nfs server一样可以

在hanewin的export文件里给目录加上：

-mapall:33:33 （33是ubuntu里www-data用户的uid和gid）

这样export以后

kerrigan@ubuntu-server:/home/www-data$ showmount -e 192.168.1.200
Export list for 192.168.1.200:
/video    (everyone)
/photo    (everyone)
/music    (everyone)
/homes    (everyone)
/owncloud -mapall:33,33

查看权限：

kerrigan@ubuntu-server:/home/www-data$ ll
total 12
drwxr-xr-x 3 www-data www-data 4096 Aug 13 09:36 ./
drwxr-xr-x 4 root root 4096 Aug 13 09:34 ../
drwxr-xr-x 2 www-data www-data 4096 Aug 13 09:33 owncloud-data/

owncloud写入nfs需要nolock参数

开机自动挂载

编辑/etc/fstab，加入：

192.168.1.200:/owncloud /home/www-data/owncloud-data nfs defaults,nolock 0 0

hyper-v dsm黑裙安装, nfs, photo station

muyunyying — Wed, 12 Aug 2015 07:42:59 +0000

wait for it

使用hanewin nfs server时，如果不加参数

会导致ubuntu mount以后所有目录权限变为root:root

在dsm下无问题，在ubuntu下会使apache2的www-data用户无法写入

The exports file uses the same format as on Unix. Directories must follow the Windows notation starting with a drive specification, e.g. C:\unix

The following options are supported:

-name: assigns a name to the exported path as an alternate name for mounting.

-alldirs allows the host(s) to mount at any point within the filesystem.

-umask: set the umask for group and world permissions on the filesystem, default 022

-readonly limits access to reading

-public Enables WebNFS access.

-lowercase maps all file names to lowercase, otherwise case is preserved.

-exec forces in access rights the x bit for all files.

-mapall:[:] all Unix user-ids and group-ids are mapped to the specified user-id and group-id.

-maproot:[:] the Unix super user root is mapped to the specified user-id, group-id. Without a mapping entry root will be mapped to user and group nobody.

-range IP adresses are interpreted in pairs as from-to ranges enabling client access from all addresses in a range (more flexible than the unix -net -mask options).

估计要指定uid:gid

`-name:`	assigns a name to the exported path as an alternate name for mounting.
`-alldirs`	allows the host(s) to mount at any point within the filesystem.
`-umask:`	set the umask for group and world permissions on the filesystem, default 022
`-readonly`	limits access to reading
`-public`	Enables WebNFS access.
`-lowercase`	maps all file names to lowercase, otherwise case is preserved.
`-exec`	forces in access rights the x bit for all files.
`-mapall:[:]`	all Unix user-ids and group-ids are mapped to the specified user-id and group-id.
`-maproot:[:]`	the Unix super user root is mapped to the specified user-id, group-id. Without a mapping entry root will be mapped to user and group nobody.
`-range`	IP adresses are interpreted in pairs as from-to ranges enabling client access from all addresses in a range (more flexible than the unix -net -mask options).