barcode vb.net free Lesson 2 in Visual C#.NET

Generation ANSI/AIM Code 39 in Visual C#.NET Lesson 2

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When you create a volume, the next available drive letter is assigned to the volume. The New Volume Wizard and New Partition Wizard give you a chance to specify an alternative representation for the new logical volume. You can also right-click an existing volume and choose Change Drive Letter and Paths. A volume can be represented by only one drive letter, though you can configure a volume to have no drive letter. However, you can mount a volume in one or more empty folders on local NTFS volumes. In the Change Drive Letter And Paths dialog box, you can click Remove or Change to delete or modify an existing drive letter or folder mounting for the volume.

Click Add to add a drive letter or mount point. Figure 11-3 shows a server in which the Docs folder on the X drive is a mount point to another volume. Note that the folder appears in the Explorer namespace exactly where it should but displays a drive volume icon. When a user navigates to that folder, the user is transparently redirected to the volume.

Figure 11-3

Mounting a volume in a folder on an existing volume effectively increases the target volume s size and free space. You can mount volumes regardless of whether the volumes involved are on basic or dynamic disks and regardless of what type of volume they are. But the empty folder, the path of which becomes the path to the mounted volume, must reside on an NTFS volume. The mounted volume can, technically, be formatted as FAT or FAT32, but, of course, that is not the best practice.

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Another way to increase a volume s capacity is to extend the volume. You can extend a simple or spanned volume on a dynamic disk so long as that volume is formatted as NTFS and so long as the volume is not the system or boot volume. Right-click the volume and click Extend Volume. Follow the Extend Volume Wizard s instructions screen to select unallocated space on dynamic disks on which to extend the existing volume. If you extend a simple volume onto space on another physical disk, you create a spanned volume. You can extend a partition on a basic disk using the DISKPART command. The basic partition must be formatted as NTFS, must not be the system or boot partition, and must be extended onto immediately contiguous space on the same physical disk that is either unallocated and unformatted, or formatted with NTFS.

Basic disk partitions can be extended only to immediately contiguous space on the same physical disk. Dynamic disk volumes can be extended to any unallocated space on any physical disk. You cannot extend partitions or volumes that contain the operating system or boot files.

It is possible to move disks between computers. If, for example, you plan to take a server offline, you might attach its physical disks to another server so that data can continue to be accessed. The process for doing so is the following: 1. Check the health of the disk while it is in the original server. It is recommended to open Disk Management and confirm that the disk status displays Healthy before moving the disk. If the disk is not Healthy, repair the disk. 2. Uninstall the disk in the original computer. If the original server is online, uninstall the disk by right-clicking the disk in Device Manager and choosing Uninstall. 3. Remove a dynamic disk correctly. If the original server is online, open Disk Management, right-click the dynamic disk and choose Remove. This step is not necessary or possible with basic disks. 4. Physically detach the disk. If the computer supports hot-swapping the drive, you may remove the drive. Otherwise, shut down the computer to remove the physical disk. 5. Attach the disk to the target server. Open Disk Management and, if the drive has not been detected automatically, right-click the Disk Management node and choose Rescan Disks. Otherwise, shut down the target server before adding the physical disk.