A method of implementing soft raid under Windows nt/2000

RAID (Redundant array of inexpensive disks) means a redundant array of inexpensive disks, a fault-tolerant approach that provides high levels of availability and redundancy by concatenating a large number of disks logically. As we all know, a hardware RAID solution is an effective approach, but its cost is very high ... Windows nt/2000 provides embedded software raid that implements RAID0, RAID1, and RAID5. Because can save a considerable amount of money, so many small and medium-sized enterprises can use the software method to achieve.

NT Server supports RAID1 (disk mirroring) and RAID5 (stripe set with checksums), NT also supports RAID0 (without checksum stripe set), which does not provide data redundancy, but provides performance gains. The NT Workstation does not support fault-tolerant RAID (RAID1, RAID5) but supports RAID0.

1, on the NT management RAID5

The purpose of creating the RAID5 stripe set with parity is to consider that the disk does not lose data when it fails, creating the following steps:

Run "Disk Administrator" (start→programs→administrative tools→disk Administrator);

Select at least three free space areas on three different physical disks;

Select the Create stripe Set with Parity from the Fault tolerance menu;

Enter the size you want, and then click OK.

"Note" When a member of the stripe set with parity fails, the user does not get any warning and the system continues to run. As an indication, when the user runs Disk Administrator, a system event log is generated that records the location space of the partition in the event log. You can re-create the stripe set by performing the following steps:

Replace the fault-tolerant disk and start NT;

Run Disk Administrator;

Select the stripe set you want, and then select a space area that is not partitioned on the new physical disk;

Select regenerate from the Fault tolerance menu.

You can recreate a corrupted stripe set by using the steps above.

To delete a stripe group, perform the following steps (note that this will lose all data information on the stripe group):

Run Disk Administrator;

Select the stripe group you want to delete;

Select Delete from the Partition dropdown menu

Confirm the delete operation.

2, on the NT management RAID1

To create a mirrored partition (RAID1), you first create a primary partition, and then you can create its mirrored partition.

Run "Disk Administrator";

Click the existing partition that makes up the primary partition, and press the CTRL key;

Click an unpartitioned area of disk space (you must select an unpartitioned space area without selecting an existing partition);

Select "Establish Mirror" from the "Fault Tolerance" menu;

Select "Commit Changes now" from the Partition menu, copy start;

The machine needs to be rebooted after completion. If a mirrored partition is corrupted, you can fix it by using the following steps:

The first is to ensure that there is an unpartitioned space at least the same size as the primary partition;

Run "Disk Administrator";

Click the workspace where you want to perform the partition, press the CTRL key, and then select the unpartitioned space;

Select "Establish Mirror" from the Fault Tolerance menu.

In this way, the damaged Morror group is repaired.