基本上搭建glusterfs都是用了2个副本，用来保证数据冗余
建立新卷，/export/test-vol目录不用事先建立，会自动建立的：
gluster volume create test-vol replica 2 transport tcp 172.16.8.5:/export/test-vol/ 172.16.8.6:/export/test-vol/
如上建立新卷后，test-vol的属主是root，如果我们想基于gfs之上做个虚拟的vsftpd，建设用户是virtual.virtual，500.500
设置卷uid/gid属性：
gluster volume set test-vol storage.owner-uid 500
gluster volume set test-vol storage.owner-gid 500
设置卷的quota空间配额：
gluster volume quota test-vol enable
gluster volume quota test-vol limit-usage / 10GB
gluster volume quota test-vol limit-usage /path/in/volume 2G
gluster volume set test-vol features.quota-timeout 30
gluster volume quota test-vol list
gluster volume quota test-vol list /path/in/volume
去掉quota限制：
gluster volume quota test-vol remove /
gluster volume quota test-Vol remove /path/in/volume
优化tcp参数：
gluster volume set test-vol diagnostics.brick-log-level WARNING
gluster volume set test-vol diagnostics.client-log-level WARNING
gluster volume set test-vol nfs.enable-ino32 on
gluster volume set test-vol nfs.addr-namelookup off
gluster volume set test-vol nfs.disable on
gluster volume set test-vol performance.cache-max-file-size 2MB
gluster volume set test-vol performance.cache-refresh-timeout 4
gluster volume set test-vol performance.cache-size 256MB
gluster volume set test-vol performance.write-behind-window-size 4M
gluster volume set test-vol performance.io-thread-count 32
设置卷访问权限
gluster volume set test-vol auth.allow 192.168.2.*
gluster volume set test-vol auth.reject 192.168.2.*
监控
gluster volume profile zfws-vol start
gluster volume profile zfws-vol info