fastDFS配置reserved_storage_space

# reserved storage space for system or other applications.

# if the free(available) space of any stoarge server in

# a group <= reserved_storage_space,

# no file can be uploaded to this group.

# bytes unit can be one of follows:

### G or g for gigabyte(GB)

### M or m for megabyte(MB)

### K or k for kilobyte(KB)

### no unit for byte(B)

### XX.XX% as ratio such as reserved_storage_space = 10%

reserved_storage_space = 10%

# storage server 上保留的空间，保证系统或其他应用需求空间。可以用绝对值或者百分比。只要同组内任一storage server剩余空间小于这个值，就不允许再上传文件。

#(注意如果同组的服务器的硬盘大小一样,以最小的为准,也就是只要同组中有一台服务器达到这个标准了,这个标准就生效,原因就是因为他们进行备份)

任何一个存储节点的值达到标准临界值，都会上传不了