Windows 2000 Disk Quota Configuration

In a computer network where Windows 2000 Server is the server operating system, system administrators have an important task of setting disk quotas for clients accessing server resources, that is, limiting them once. The amount of volume space to access server resources. The purpose of this is to prevent a client from overusing server and network resources, causing other clients to lose access to the server and use the network. This section describes the configuration of server disk quotas.

5.5.1 How System Administrators Configure Disk Quotas

Disk quotas are not important for normal Windows 2000 users, but for system administrators throughout the network. The operation is of the utmost importance. Because once there are many clients in the network and frequently access server resources and use the network, no matter how powerful the computing power of the server is, or how much traffic the network can bear, it is difficult to meet the needs of all users. Therefore, the system administrator must set disk quotas for clients on the network. In Windows 2000, disk quotas control disk space usage by volume tracking. The system administrator can configure it by following the steps:

? Prevent further use of disk space and login events when users exceed the specified disk space limit.

? Log in an event when the user exceeds the specified disk space alert level.

? When you start a disk quota, you can set two values: a disk quota limit and a disk quota alert level. Quota limits specify the amount of disk space a user can use. The alert level specifies the point at which the user is close to the quota limit. For example, set the user disk quota limit to 60MB and the disk quota alert level to 40 MB. In this case, the user can store no more than 60MB of files in the volume. If the user stores more than 40MB of files in the volume, there will be a disk quota system logging in to a system event.

In addition, the system administrator can also specify that users can exceed the quota limit. Because it is useful to start quotas and not limit disk space usage when you don't want to deny users access to the volume but want to track each user's disk space usage. You can also specify whether to log in to the event when the user exceeds the quota limit and the disk quota alert level.

When starting a disk quota for a volume, new users from that point will automatically track the use of the volume. However, existing volume users will not be able to apply for disk quotas. You can request disk quotas for existing volume users by adding new quota entries in the Quota Entries window. Quotas can be started on local and remote volumes, but volumes that can only be shared in the root of the volume are formatted as NTFS.

To support disk quotas, disk volumes must be formatted as NTFS version 5.0. NTFS version 4.0 volumes will automatically be updated to Windows NT Setup to NTFS version 5.0 format. Also, in order to manage volume quotas, users must be members of the Administrators group on the same computer as the drive.

Note If the volume is not in NTFS format, or if the user is not a member of the Administrators group on the local computer, the Quota tab does not appear on the property page of the volume. In addition, file compression does not affect the volume of the volume's billing numbers. For example, if the user Jace is limited to 5MB of disk space, the user can only store 5MB of files, even if the files are compressed.

5.5.2 Disk Quotas vs. Users

In Windows 2000, disk quota monitor volumes are used by only a single user, so each user can use the same volume in disk space. The user's disk quota. For example, if a user stores a 60MB file to volume E, the user cannot write additional data to the volume without first deleting or moving some existing files. However, other users can continue to store 60MB of space in that volume.

Disk quotas depend on the ownership of the file, regardless of the folder location of the user files in the volume. For example, if a user moves files from the same volume from one folder to another, the use of volume space does not change. However, if the user copies the files to a different folder on the same volume, the volume space usage is doubled.

5.5.3 Impact of Physical Disks and Folders on Disk Quotas

Disk quotas apply only to volumes, regardless of the folder structure of the volume and the distribution of physical disks. If the volume has multiple folders, quotas are assigned to volumes that collectively apply for all folders. For example, if Companyhch and CompanySales are the same volume, the shared folder in volume E, the user's use of Companyhch and CompanySales cannot exceed the quota allocated on the E volume.

If a single physical disk contains multiple volumes, you can assign a quota to each volume, and each volume quota applies only to the specified volume. For example, sharing two different volumes (volume E volume F), the quota tracking for two volumes is independent, even if they exist on the same physical disk.

If a volume spans multiple physical disks, the same quota for the volume applies to the entire span. For example, an E volume has a 60MB limit quota, so users cannot store more than 60 MB of data to volume E, regardless of whether the E volume is on a physical disk or spans three physical disks.