- 谨慎对待 force。
常见的linux命令，通常会使用force参数来强制执行命令。在执行的目的上与不带force是相同的。但是gluster命令集合里面，有些force参数会有所不同。
（1）gluster volume rebalance <VOLNAME> start
（2）gluster volume rebalance <VOLNAME>start force
这两个命令行都会平衡迁移数据，但是命令行（2）会更好的处理链接文件。所以当链接文件比较多的时候最好使用命令行（2），避免影响性能。
2 . gluster volume set VolName cluster.server-quorum-ratio 命令。
文档上虽然说是针对卷的。但是VolName只能是all，并不能针对特定卷。 注意：尽量不要修改此参数，避免脑裂。
3 . gluster volume quota data limit-usage / 100MB 注意书写。
注意此处的参数100MB,必须写成MB而不能写成M。下面的命令，会报错
gluster volume quota data limit-usage / 100M
因为缺少字符B。
4 . gluster volume reset-brick
这个命令不是用来替换盘的。换盘请使用replace-brick。请注意二者的区别。
5 .友情客串： lvs 与lvdisplay
前者并不是后者的简写。二者并不相同。
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