Citrix XenServer：如何在沒有 XenCenter 的情況下將 RAM 添加到來賓 VM？

是否可以在不使用 XenCenter 的情況下，而是從主機控制台或遠端電腦向來賓 VM 添加 RAM？

在 XenServer 6.0 中，這可以通過以下vm-memory-limits-set命令完成：

[root@localhost 1274]# xe help vm-memory-limits-set
command name            : vm-memory-limits-set
       reqd params     : static-min, static-max, dynamic-min, dynamic-max
       optional params : <vm-selectors>
       description     : Configure the memory limits of a VM. The simplest way to select the VM on which the operation is to be performed is by supplying the argument 'vm=<name or uuid>'. VMs can also be specified by filtering the full list of VMs on the values of fields. For example, specifying 'power-state=halted' will select all VMs whose power-state field is equal to 'halted'. Where multiple VMs are matching, the option '--multiple' must be specified to perform the operation. The full list of fields that can be matched can be obtained by the command 'xe vm-list params=all'. If no parameters to select VMs are given, the operation will be performed on all VMs.

假設 VM 已關閉，以下是實際使用它的範例：

[root@localhost 1274]# xe vm-list name-label=Local-PerformanceVM params=all |grep memory
                memory-actual ( RO): 0
                memory-target ( RO): <expensive field>
              memory-overhead ( RO): 4194304
            memory-static-max ( RW): 268435456
           memory-dynamic-max ( RW): 268435456
           memory-dynamic-min ( RW): 268435456
            memory-static-min ( RW): 16777216
              recommendations ( RO): <restrictions><restriction field="memory-static-max" max="34359738368" /><restriction field="vcpus-max" max="8" /><restriction property="number-of-vbds" max="7" /><restriction property="number-of-vifs" max="7" /></restrictions>
                       memory (MRO):
[root@localhost 1274]# xe vm-memory-limits-set dynamic-max=300000000 dynamic-min=300000000 static-max=300000000 static-min=16777216 name-label=Local-PerformanceVM
[root@localhost 1274]# xe vm-list name-label=Local-PerformanceVM params=all |grep memory
                memory-actual ( RO): 0
                memory-target ( RO): <expensive field>
              memory-overhead ( RO): 5242880
            memory-static-max ( RW): 300000000
           memory-dynamic-max ( RW): 300000000
           memory-dynamic-min ( RW): 300000000
            memory-static-min ( RW): 16777216
              recommendations ( RO): <restrictions><restriction field="memory-static-max" max="34359738368" /><restriction field="vcpus-max" max="8" /><restriction property="number-of-vbds" max="7" /><restriction property="number-of-vifs" max="7" /></restrictions>
                       memory (MRO):
[root@localhost 1274]#

引用自：https://serverfault.com/questions/292560