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

3.1.3 Restoring Disks after Swapping (Adding Disks)

After swapping disks, add the new disks to the mirror group.

The procedure below explains how to add disks to a mirror group. You must be a user with administrator privileges (a user of the Administrators group) to perform this procedure.

1. Checking the replacement disk

   Check the disk number of the replacement disk.
   Its location can be different from the location of the disk that was replaced.

   Example: The replacement disk location is IOU#0-HDD#1.

   > sdxinfo -P
   OBJ    NAME BLOCKS       STATUS  DKNAME LOCATION
   ------ ---- ------------ ------- ------ ---------------------------------------
   device 0        35291136 VALID   Disk0  IOU#0-HDD#0
   device 1        35291136 *       *      IOU#0-HDD#1

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

   
   

2. Adding the disk

   Add the replacement disk to the mirror group.

   Before performing this procedure, exit "Disk Management" or the diskpart command if it is active.

   Example: The mirror group name is Group0 and the disk number of the replacement disk is 1.

   > sdxsysdisk -A -g Group0 -p 1

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

   
   

3. Confirming the mirroring state

   After a disk is added, the synchronization copying from a VALID disk in the mirror group to the disk is automatically initialized. During the synchronization, the disk will be in COPY status.

   Example: The mirror group name is Group0, and the disk number of the added disk is 1 and the disk name is Disk1.

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

   The synchronization copying progress (%) is shown in the RATE field in the sdxinfo -G -e long command output. When the synchronization copying is completed, the RATE field comes to display an asterisk (*).

   > sdxinfo -G -e long
   OBJ   NAME    DISKS                       BLKS         SPARE JRM TYPE   COPY RATE CURBLKS      COPYBLKS     DLY
   ----- ------- --------------------------- ------------ ----- --- ------ ---- ---- ------------ ------------ ----
   group Group0  Disk0:Disk1                     35291136     0 on  mirror run     2       705823     34766848    0

   When the synchronization copying is ended normally, all the disks in the mirror group will be in VALID status.

   > 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."