Array Administration

Array Administration

This section provides information about creating and deleting disk arrays.

Creating Disk Arrays:

  You can use disk arrays to improve security, performance, and reliability.

To create a disk array:

1. Click on the   icon on the Tool Bar or select Manage Disk Arrays
    from the Advanced pull-down menu; then, select Create Disk Array.
    A screen similar to the following appears.
    
   
2.  Select one or more Ready (RDY) drives for the new disk array from the Main screen of the  Administration and Monitoring Program.

    To select a RDY drive, click the desired RDY button from the device area.
    A disk array identifier appears beside each RDY drive added to the disk array.

    If you change your mind about a selected drive, select the button again to remove the selected drive from the disk array.

3.  Click on OK to define a logical drive for the new array.
    A screen similar to the following appears.
    
   
4.  Select the appropriate RAID level from the pull-down list.

   Note: The number of hard disk drives in the array determines the RAID levels available for the array.

   •  If the array contains one hard disk drive, you can select only RAID level-0 for the logical drive.
   •  If the array contains two hard disk drives, you can select RAID level-0 or RAID level-1 for the logical drive.
   •  If the array contains three or more hard disk drives, you can select RAID level-0, RAID level-1, or RAID level-5 for the logical drive.

5.  Enter the Requested Space in the entry field.

    The ServeRAID program uses the maximum available space for the selected RAID level to calculate  the default value that it assigns.

   Note: The actual logical drive size might be slightly different  from what you type in the Requested Space field.
    The RAID level and the number of hard disk drives determine the size of the logical drive.  For example, a disk array consisting of three, 1 GB hard disk drives with a requested RAID level-0  logical drive of 1000 MB will actually contain only 999 MB because the data is striped across all three drives, with 333 MB on each drive.

6.  Click on OK to create the disk array.

Deleting Disk Arrays:

 
Deleting a disk array deletes all logical drives that are defined in that disk array.
All data and programs on the logical drives in the disk array will be lost during this procedure.

To delete a disk array:

1. Click on the   on the Tool Bar or select Manage Disk Arrays from
    the Advanced pull-down menu; then, select Delete Disk Array.
    A screen similar to the following appears.
    
   
2.  Select the desired disk array ID from the pull-down list.

     -Attention- Before proceeding, ensure that you have backed up any data  and programs that you want to save.

3.  Click on OK to delete the disk array.

   Note: For some operating systems, deleting a disk array and its associated logical drives might  change the drive-letter assignments of the remaining drives when you restart the system.

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