Win disktodisk copy=100% CPU usage?

1. Need to find out what process is running besides disk-to-disk copy. Close all programs. Open Task Manager (Ctrl+Shift+Esc) and click on Process tab an then click on CPU to sort by CPU usage. Proceed to copy files such that you can see the task manager at the same time. Observe what process(es) is consuming the CPU. Once you found it, either disable or uninstall it.

2. It could be HW that might be the cause. Uninstall all devices (PCI, zip, CD-ROM). If this resolved the problem, install one at a time to find the culprit.

3. If you still have the problem, one of the HDs may be failing. Do a HD diagnostic test.

While the above is correct it also depend upon what is being copied at the time you said Disk to Disk coping so it sounds like some sort of Backup and if there is a lot of Data to transfer and in big chunks it could be quite normal depending upon the system.

Like if I copy 14 ISO images from a SATA drive to a 15K SCSI while the transfer is running I will see 100% CPU usage on a Dual Processor M'Board with Built in SCSI. But if it is a 20 K file I usually don't see much of a increase in CPU usage. So while you need to find out what processes are running in the background you also need to look at what is being copied. If they are big files or lots of small files 100% CPU usage is quite acceptable while the transfer is occurring.

Col

Disk to disk copying should improve if disks are on separate IDE channels.

7200 RPM UDMA drives are fairly fast if configured correctly.

Dalton