XenServer命令行工具指南-xe param list的param属性

执行XenServer的xe param list命令，比如sr-param-list会返回

[root@xs150 ~]# xe sr-param-list uuid=a90e4c0b-ad89-189f-fac0-4ba6ae51111c 
uuid ( RO)                    : a90e4c0b-ad89-189f-fac0-4ba6ae51111c
              name-label ( RW): Local storage
        name-description ( RW): 
                    host ( RO): xs150
      allowed-operations (SRO): VDI.create; VDI.snapshot; PBD.create; PBD.destroy; ...
      current-operations (SRO): 
                    PBDs (SRO): 06685028-a1ee-56cf-de8f-2b6320cbb64b
      virtual-allocation ( RO): 2866290884608
    physical-utilisation ( RO): 2932711882752
           physical-size ( RO): 2996284948480
                    type ( RO): lvm
            content-type ( RO): user
                  shared ( RW): false
           introduced-by ( RO): 
            other-config (MRW): i18n-original-value-name_label: Local storage; i18n-key: local-storage
               sm-config (MRO): allocation: thick; use_vhd: true; devserial: scsi-SATA_ST3000DM001-1CH_Z1F1V7G5
                   blobs ( RO): 
     local-cache-enabled ( RO): false
                    tags (SRW):

返回值的属性分为 RO, RW, SRO, SRW, MRO, MRW, 分别代表什么意思

RO和RW很常见

RO - 表示数据是只读的(Read Only)

RW - 表示数据是可读写的(Read Write)

S代表数据是Set 

M代表数据是Map

参考

http://discussions.citrix.com/topic/348010-ro-rw-mrw-mro-srw/