Expanding an Available Disk

Scenarios

Currently, disk capacities can be expanded, but cannot be reduced.

Expanding an Available disk means that the to-be-expanded disk has not been attached to a server.

Shared disks cannot be expanded when they are in the In-use state. Therefore, you need to detach the disk from all its servers and then perform the expansion. Once the disk status changes to Available, you can expand the disk according to the operations provided in this topic.

Procedure

1. Log in to the management console.
2. Choose Dedicated Storage Service > Disks.

   The disk list page is displayed.

3. (Optional) If the to-be-expanded disk has been attached to a server, detach it first. For details, see Detaching a Disk.

   When the disk status changes to Available, the disk is successfully detached.

4. In the disk list, locate the row that contains the target disk and choose More > Expand Capacity in the Operation column.

   The expansion page is displayed.

5. Set the Add Capacity (GB) parameter as prompted and click Next.
6. On the Details page, check the disk information again.
   • If you do not need to modify the specifications, click Submit to start the expansion.
   • If you need to modify the specifications, click Previous to modify parameters.

   After the specifications are submitted, the disk list page is displayed.

7. In the disk list, view the capacity of the expanded disk.

   When the disk status changes from Expanding to Available, the additional capacity has been added to the disk and the expansion succeeded.

   

   If the expansion fails, customer service personnel will contact you and help you handle this error. Do not perform any operations on the disk before the customer service personnel contact you. If you require that the error be handled as soon as possible, contact our customer service personnel. The disk will no longer be charged once its status changes to Expansion failed.

8. Attach the expanded disk to a server. For details, see Step 3: Attach a Disk.
9. After the capacity expansion has succeeded, perform subsequent operations for the additional space.

   The operation method varies depending on the server OS.

   • For Windows OSs, see Performing Post-Expansion Operations for a Windows Disk.
   • For Linux OSs,
     • If the fdisk partitioning tool will be used, see Performing Post-Expansion Operations for a Disk in Linux (fdisk), Performing Post-Expansion Operations for a SCSI Data Disk in Linux (fdisk), or Performing Post-Expansion Operations for a System Disk in Linux (fdisk).
     • If the parted partitioning tool will be used, see Performing Post-Expansion Operations for a Disk in Linux (parted).