创建文件系统的时候使用了-R 2 -M 2 但是r m没有指定,使用的是failgroup1,来自一个磁盘阵列
想之后再添加failgroup 2,failgroup2的磁盘来自另一个阵列,
看了下,可以在不下线件系统的情况下修改 m r 的属性来做镜像,
但是怎么能查看这个镜像的进度是多少呢??哪个大神能帮忙咨询下
mmchfs可以修改 -r 和 -m的值,修改过之后需要运行mmrestripefs,运行到100%同步就完成了,严重影响IO,建议找业务不忙的时候操作
-r DefaultDataReplicas
Changes the default number of data replicas. Valid values are 1, 2, and (for GPFS V3.5.0.7 and later) 3. This value cannot be greater than the value of MaxDataReplicas set when the file system was created.
Changing the default replication settings using the mmchfs command does not change the replication setting of existing files. After running the mmchfs command, the mmrestripefs command with the -R option can be used to change all existing files or you can use the mmchattr command to change a small number of existing files.