PRIMEQUEST System Disk Mirror for Windows User's Guide V1.0

2.2 Unmirroring

This section explains how to unset the mirroring configuration.

To unset mirroring, you must be a user with administrator privileges (a user of the Administrators group).

1. Opening the command prompt

   Select [start]-[All Programs]-[Accessories]-[Command Prompt] to open Command Prompt.

   
   

2. Checking the mirror group name

   Check the GROUP field in the sdxinfo -D command output for the mirror group name.

   > sdxinfo -D
   OBJ  NAME   TYPE   GROUP   DEVNAM DEVBLKS      STATUS
   ---- ------ ------ ------- ------ ------------ -------
   disk Disk0  mirror Group0  0          35291136 VALID
   disk Disk1  mirror Group0  1          35291136 VALID

   
   For details on the sdxinfo command, see "sdxinfo - Disk configuration and status viewing."

   
   

3. Unsetting mirroring

   With the sdxsysdisk -R command, unset the mirroring.

   Responding to the message "Do you want to proceed (yes/no)?," type "yes" and press the Enter key. When the command is ended normally, the system is automatically rebooted.

   Example: The mirror group name is Group0.

   > sdxsysdisk -R -g Group0
   SDX: sdxsysdisk: 64206: INFO: After execution of this command, the system will reboot automatically. Do you want to proceed (yes/no)? yes

   
   For details on the sdxsysdisk command, see "sdxsysdisk - Mirroring and unmirroring."

   
   

4. Opening the command prompt

   After the system is rebooted, select [start]-[All Programs]-[Accessories]-[Command Prompt] to open Command Prompt.

5. Confirming the current state

   If mirroring is unset, the mirror group and mirror disks that belong to that group are excluded from PSDM management. One of the disks in VALID status will then be a disk that stores data and data on the other disks will no longer be ensured.

   With the sdxinfo -G command, confirm that the mirror group was removed.

   > sdxinfo -G
   OBJ   NAME    DISKS                       BLKS         SPARE JRM
   ----- ------- --------------------------- ------------ ----- ---

   Confirm that the disks were excluded from PSDM management. If excluded, the DKNAME field in the sdxinfo -P command output displays an asterisk (*).

   > sdxinfo -P
   OBJ    NAME BLOCKS       STATUS  DKNAME LOCATION
   ------ ---- ------------ ------- ------ ---------------------------------------
   device 0        35291136 *       *      IOU#0-HDD#0
   device 1        35291136 *       *      IOU#0-HDD#1

   Select [start]-[Control Panel]-[Administrative Tools]-[Computer Management]-[Disk Management] to check the disk that stores data.

   
   Partitions other than the boot partition (the C drive) may not automatically be mounted after the mirroring is unset. Check mount conditions from "Disk Management," and if they are not currently mounted, mount those partitions manually.

   
   For details on the sdxinfo command, see "sdxinfo - Disk configuration and status viewing."