虚拟主机硬盘文件(.vmdk) 的大小会随着安装软件不断变大，有时候空间紧张的话，最好收缩一下，刚好有个命令，使用参数-k就行了，也可以使用-d命令来整理一下，参考如下：
E:/VMware/VMware Server> /?
VMware Virtual Disk Manager - build 56528.
Usage: OPTIONS diskName | drive-letter:
Offline disk manipulation utility
Options:
-c : create disk; need to specify other create options
-d : defragment the specified virtual disk
-k : shrink the specified virtual disk
-n <source-disk> : rename the specified virtual disk; need to
specify destination disk-name
-p : prepare the mounted virtual disk specified by
the drive-letter for shrinking
-q : do not log messages
-r <source-disk> : convert the specified disk; need to specify
destination disk-type
-x <new-capacity> : expand the disk to the specified capacity
Additional options for create and convert:
-a <adapter> : (for use with -c only) adapter type (ide, buslogic o
r lsilogic)
-s <size> : capacity of the virtual disk
-t <disk-type> : disk type id
Disk types:
0 : single growable virtual disk
1 : growable virtual disk split in 2Gb files
2 : preallocated virtual disk
3 : preallocated virtual disk split in 2Gb files
The capacity can be specified in sectors, Kb, Mb or Gb.
The acceptable ranges:
ide adapter : [100.0Mb, 950.0Gb]
scsi adapter: [100.0Mb, 950.0Gb]
ex 1: -c -s 850Mb -a ide -t 0
ex 2: -d
ex 3: -r -t 0
dk
ex 4: -x 36Gb
ex 5: -n
ex 6: -k
ex 7: -p m:
(A virtual disk first needs to be mounted at m:
using the VMware Diskmount Utility.)