Latency on hard disk access

I have an high latency using a Windows 2000 Server virtual machine on VMWare Server 1.0.5.

Sometimes the virtual machine freezes itself and return in life after a couple of minutes.

I see these logs in the vmware.log file of the virtual machine: 

Mar 31 15:17:38: vcpu-0| SCSI0: RESET BUS

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command WRITE(10) took 127.582 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.999 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.995 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.995 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.995 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.995 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.994 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.994 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.993 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 124.000 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.999 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.997 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command READ(10) took 123.997 seconds (ok)

Mar 31 15:19:41: vcpu-0| SCSI0:0: Command WRITE(10) took 132.630 seconds (ok)

Mar 31 15:19:47: vmx| SCSI0:0: Command WRITE(10) took 1.747 seconds (ok)

Mar 31 15:19:57: vmx| SCSI0:0: Command WRITE(10) took 2.105 seconds (ok)

Mar 31 15:19:57: vmx| SCSI0:0: Command WRITE(10) took 1.594 seconds (ok)

Mar 31 15:23:10: vcpu-0| TOOLS unified loop capability requested by 'toolbox-dnd'; now sending options via TCLO

Mar 31 15:23:10: vcpu-0| GuestMsg: Channel 3, Cannot unpost because the previous post is already completed

Mar 31 15:23:10: vcpu-0| GuestRpc: Channel 3 reinitialized.

Mar 31 15:23:10: vcpu-0| GuestRpc: Channel 4, registration number 1, guest application toolbox-dnd.

Mar 31 15:23:10: vcpu-0| DISKUTIL: scsi0:0 : toolsVersion = 6531

Mar 31 15:23:10: vcpu-0| TOOLS unified loop capability requested by 'toolbox-dnd'; now sending options via TCLO

Mar 31 15:23:10: vcpu-0| GuestRpc: Channel 3, conflict: guest application toolbox-dnd tried to register, but it is still registered on channel 4

Mar 31 15:23:10: vcpu-0| GuestRpc: Channel 3 reinitialized.

Mar 31 15:23:10: vcpu-0| GuestRpc: Channel 3 reinitialized.

Someone could help me to understand what is the problem, please?

Thank you very much!

Bye.