Disk Status

Disk Management displays the status of each disk and volume.

Online - Displayed by basic and dynamic disks. The disk is accessible. No user action is required.

Online (Errors) - Displayed by dynamic disks only. The disk is accessible, but input/output (I/O)
            errors have been detected. If the I/O errors are intermittent, right click the disk and select
            Reactivate Disk. This normally returns the disk to Online status.

Offline Or Missing - Displayed by dynamic disks only. This disk is not accessible. Attempt to rescan
            the disks on the computer by selecting Rescan Disks from the Action menu in Disk
            Management. If the scan is unsuccessful, look for a physical (cables disconnected, no power
            to disk, failed disk). If needed to be replace a failed drive, first delete all volumes on the disk,
            right-click the disk, and select Remove Disk.

Foreign - Displayed by dynamic disks only. The disk has been moved to this computer from another
            computer. Right-click the disk, and then select Import Foreign Disk. If desire not to keep the
            information on the disk, Convert To Basic Disk can be selected but all information on the
            disk will be lost.

Unreadable - Displayed by basic and dynamic disks. The disk is not accessible. Disks might show
            this status while they are initializing. If a disk continues to show this status, the disk might
            have failed entirely. Restart the computer to determine whether the disk will become
            accessible. If it is a dynamic disk, attempt to repair the disk by right-clicking it and selecting
            Rescan Disks.

Unrecognized - The disk is an unknown type, and Windows XP cannot recognize it.

No Media - This status is on drives with removable media, such as a CD-ROM drive, when the drive
            is empty.

Volume status types and the recommended action (if required) are:

Healthy - The volume is accessible and has no detected problems.

Healthy (At Risk) - If the disk status is Online (Errors), the volumes will be accessible, but all
            volumes will display this status. Restoring the disk to Online will clear this status from the
            volume.

Initializing -The volume is in the process of initializing. No action is required. After the initialization
            is complete, the volume should show a status of Healthy.