I have performed a disk cleanup to my virtual disk. I finished after a while.
After this VMWARE started to claim my virtual disk was corrupt.
The log shows this
2013-03-17T00:09:47.239-04:00| Worker#0| I120: MsgQuestion: msg.disk.scaryWithNoLostSectors reply=0
2013-03-17T00:09:47.459-04:00| Worker#0| I120: DISKLIB-SPARSECHK: [/Users/marceloneira/My Virtual Machines/sanlcnu7511k5r.corp.carestreamhealth.com/sanlcnu7511k5r.corp.carestreamhealth.com.vmdk] Moving grain GT[374][421] = 162356864 to @45371776 to fill hole
2013-03-17T00:11:41.943-04:00| Worker#0| I120: FileIOErrno2Result: Unexpected errno=5, Input/output error
2013-03-17T00:11:41.943-04:00| Worker#0| I120: VMXAIOMGR: "/Users/marceloneira/My Virtual Machines/sanlcnu7511k5r.corp.carestreamhealth.com/sanlcnu7511k5r.corp.carestreamhealth.com.vmdk" : read s=83126714368 n=65536 ne=1
2013-03-17T00:11:41.943-04:00| Worker#0| I120: VMXAIOMGR: v[0]=102131000:65536
2013-03-17T00:11:41.943-04:00| Worker#0| I120: VMXAIOMGR: Retry on read "/Users/marceloneira/My Virtual Machines/sanlcnu7511k5r.corp.carestreamhealth.com/sanlcnu7511k5r.corp.carestreamhealth.com.vmdk" : Input/output error.
2013-03-17T00:11:41.943-04:00| Worker#0| I120: VMXAIOMGR: system : err=50002 errCode=5 freeSpace=11731976192
2013-03-17T00:11:41.943-04:00| Worker#0| I120: Msg_Question:
2013-03-17T00:11:41.943-04:00| Worker#0| I120: [msg.vmxaiomgr.retrycontabort.rudeunplug] The operation on file "/Users/marceloneira/My Virtual Machines/sanlcnu7511k5r.corp.carestreamhealth.com/sanlcnu7511k5r.corp.carestreamhealth.com.vmdk" failed.
2013-03-17T00:11:41.943-04:00| Worker#0| I120+ If the file resides on a remote file system, make sure that the network connection and the server where this disk resides are functioning properly. If the file resides on removable media, reattach the media.
2013-03-17T00:11:41.943-04:00| Worker#0| I120+ Select Retry to attempt the operation again.
2013-03-17T00:11:41.943-04:00| Worker#0| I120+ Select Cancel to end this session.
2013-03-17T00:11:41.943-04:00| Worker#0| I120+ Select Continue to forward the error to the guest operating system.
2013-03-17T00:11:41.943-04:00| Worker#0| I120: ----------------------------------------
2013-03-17T00:11:47.057-04:00| Worker#0| I120: MsgQuestion: msg.vmxaiomgr.retrycontabort.rudeunplug reply=0
2013-03-17T00:13:41.468-04:00| Worker#0| I120: FileIOErrno2Result: Unexpected errno=5, Input/output error
2013-03-17T00:13:41.468-04:00| Worker#0| I120: VMXAIOMGR: "/Users/marceloneira/My Virtual Machines/sanlcnu7511k5r.corp.carestreamhealth.com/sanlcnu7511k5r.corp.carestreamhealth.com.vmdk" : read s=83126714368 n=65536 ne=1
2013-03-17T00:13:41.468-04:00| Worker#0| I120: VMXAIOMGR: v[0]=102131000:65536
2013-03-17T00:13:41.895-04:00| Worker#0| I120: VMXAIOMGR: Retry on read "/Users/marceloneira/My Virtual Machines/sanlcnu7511k5r.corp.carestreamhealth.com/sanlcnu7511k5r.corp.carestreamhealth.com.vmdk" : Input/output error.
2013-03-17T00:13:41.895-04:00| Worker#0| I120: VMXAIOMGR: system : err=50002 errCode=5 freeSpace=11731947520
2013-03-17T00:13:41.895-04:00| Worker#0| I120: Msg_Question:
I luckily have a 4 month old backup and I could recover some file from the supossed corrupted vmdk file with a tool called vdk.exe that mounts the virtual disk as a normal drive in Windows. After a whole day work I recovered 99.9% of my information.
I was in doubt how by using the Disk Cleanup could end in such disaster so I have backed up again and performed the disk cleanup again to reclaim to the host operating system some sace not used by the guest. The result was the same a corruoted vmdk file,
I'm using the lasted VMWARE fusion and my OS is Snow Leopard 10.8.3.
I advice to other users of Fusion to avoid using this cleanup option. Very dangerous.
I wonder if VMWARE has really tested this?