存储+调优：存储-Cloud
Master Server 配置：
IP=192.168.1.254
useradd mfs
tar zxf mfs-1.6.11.tar.gz.gz
cd mfs-1.6.11
./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var/lib --with-default-user=mfs --with-default-group=mfs --disable-mfschunkserver --disable-mfsmount && make && make install
配置文件：
[root@mercury etc]# pwd
/etc
[root@mercury etc]# cp mfsmaster.cfg.dist mfsmaster.cfg
[root@mercury etc]# cp mfsexports.cfg.dist mfsexports.cfg
初始数据文件
[root@mercury etc]# cd /var/lib/mfs
[root@mercury mfs]# ls
metadata.mfs.empty
[root@mercury mfs]# cp metadata.mfs.empty metadata.mfs
启动MFS master：
/usr/sbin/mfsmaster start
日志：
tail -f /var/log/messages
===========================
meta logger 日志服务器
IP=192.168.1.123
tar zxf mfs-1.6.11.tar.gz.gz
cd mfs-1.6.11
useradd mfs
./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var/lib --with-default-user=mfs --with-default-group=mfs --disable-mfschunkserver --disable-mfsmount && make && make install
配置：
[root@xen mfs-1.6.17]# cd /etc/
[root@xen etc]# cp mfsmetalogger.cfg.dist mfsmetalogger.cfg
[root@xen etc]# vim mfsmetalogger.cfg
MASTER_HOST = 192.168.5.254
启动：
/usr/sbin/mfsmetalogger start
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Chunk Server 块服务器
IP=192.168.1.217
useradd mfs
tar zxf mfs-1.6.11.tar.gz.gz
cd mfs-1.6.11
./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var/lib --with-default-user=mfs --with-default-group=mfs --disable-mfsmaster --disable-mfsmount && make && make install
配置：
[root@stu159 mfs-1.6.17]# cd /etc/
[root@stu159 etc]# cp mfschunkserver.cfg.dist mfschunkserver.cfg
[root@stu159 etc]# vim mfschunkserver.cfg
MASTER_HOST = 192.168.1.254
[root@stu159 etc]# cp mfshdd.cfg.dist mfshdd.cfg
[root@stu159 etc]# vim mfshdd.cfg
[root@stu159 etc]# mkdir /mfs
[root@stu159 etc]# chown -R mfs:mfs /mfs/
[root@stu159 etc]# cat mfshdd.cfg
# mount points of HDD drives
#
#/mnt/hd1
#/mnt/hd2
#etc.
/mfs
[root@stu159 etc]# fdisk /dev/sda
[root@stu159 etc]# partprobe /dev/sda
[root@stu159 etc]# mkfs.ext3 /dev/sda5
[root@stu159 etc]# mount /dev/sda5 /mfs/
[root@stu159 etc]# ls -ld /mfs/
drwxr-xr-x 3 root root 4096 11-10 12:18 /mfs/
[root@stu159 etc]# chown -R mfs:mfs /mfs/
[root@stu159 etc]# /usr/sbin/mfschunkserver start
错误：
[root@stu228 ~]# /usr/sbin/mfschunkserver stop
working directory: /var/lib/mfs
can't create lockfile in working directory: Permission denied
drwxr-xr-x 2 root root 4096 12-01 15:21 mfs
解决：
chown mfs:mfs /var/lib/mfs
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MFS Client 配置：
IP：192.168.1.237
yum install -y fuse fuse-libs fuse-devel
useradd mfs
./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var/lib --with-default-user=mfs --with-default-group=mfs --disable-mfsmaster --disable-mfschunkserver --enable-mfsmount && make && make install
挂载：
mfsmount /mnt/mfs/ -H 192.168.1.254
使用：
[root@www mfs]# touch 5
检查副本数：
[root@www mfs]# mfscheckfile /mnt/mfs/5
/mnt/mfs/5:
[root@www mfs]# echo "111" > 6
[root@www mfs]# mfscheckfile /mnt/mfs/6
/mnt/mfs/6:
1 copies: 1 chunks
块在那里？咱多大真实空间？
[root@www mfs]# mfsfileinfo /mnt/mfs/6
/mnt/mfs/6:
chunk 0: 00000000000002AC_00000001 / (id:684 ver:1)
copy 1: 192.168.5.3:9422
[root@www mfs]# mfsdirinfo /mnt/mfs/6
/mnt/mfs/6:
inodes: 1
directories: 0
files: 1
chunks: 1
length: 4
size: 70656
realsize: 70656
修复：
[root@www mfs]# mfsfilerepair /mnt/mfs/1
/mnt/mfs/1:
chunks not changed: 207
chunks erased: 236
chunks repaired: 0
设定副本数量：
[root@www mfs]# mkdir one
[root@www mfs]# mkdir two
[root@www mfs]# mkdir four
[root@www mfs]# mfssetgoal -r 1 /mnt/mfs/one/
/mnt/mfs/one/:
inodes with goal changed: 0
inodes with goal not changed: 1
inodes with permission denied: 0
[root@www mfs]# mfssetgoal -r 2 /mnt/mfs/two/
/mnt/mfs/two/:
inodes with goal changed: 1
inodes with goal not changed: 0
inodes with permission denied: 0
[root@www mfs]# mfssetgoal -r 4 /mnt/mfs/four/
/mnt/mfs/four/:
inodes with goal changed: 1
inodes with goal not changed: 0
inodes with permission denied: 0
[root@www mfs]#
[root@www four]# mfsfileinfo file4
file4:
chunk 0: 00000000000002E2_00000002 / (id:738 ver:2)
copy 1: 192.168.5.3:9422
copy 2: 192.168.5.16:9422
copy 3: 192.168.5.21:9422
copy 4: 192.168.5.110:9422
copy 5: 192.168.5.218:9422
chunk 1: 00000000000002E3_00000001 / (id:739 ver:1)
copy 1: 192.168.5.3:9422
copy 2: 192.168.5.21:9422
copy 3: 192.168.5.77:9422
copy 4: 192.168.5.220:9422
[root@www four]# mfsdirinfo file4
file4:
inodes: 1
directories: 0
files: 1
chunks: 2
length: 75431944
size: 75507712
realsize: 302030848
