Expanding Cloud System Disks
When expanding a cloud system disk, you have three methods at your disposal.
Expanding Cloud Data Disks
To expand a data disk, the following three methods are provided.
Depending on the detachable attribute of the CBS data disk, you can choose different operation entrances to expand the data disk.
If the current disk is a detachable CBS data disk, you can expand it through the Cloud Disk Console or by using Expanding Cloud Disks.
If the current disk is a non-detachable CBS data disk, you can expand it through the Cloud Server Instance Console or by using Expanding Cloud Disks.
Note
If the maximum capacity of the cloud disk still cannot meet your business needs, you can opt to either build a RAID group with multiple elastic cloud disks or construct LVM logical volumes with multiple elastic cloud disks.
Once the data disk capacity is expanded, you must perform the following operations for the instance to recognize and use the data disk:
Before Expansion | After Expansion | See Also |
File system not created | Disk capacity is less than than 2 TB. | |
| Disk capacity ≥ 2 TB | |
File system created | Disk capacity is less than than 2 TB. | If you are expanding a cloud disk on a Windows cloud server: Extending Partitions and File Systems (Windows) If you are expanding a cloud disk on a Linux cloud server: Extending Partitions and File Systems (Linux) |
| Disk capacity ≥ 2 TB | For GPT partition format: Extend Partition and File System (Windows) or Extend Partition and File System (Linux). Adopting MBR partition format: Not supported. The maximum disk capacity supported by MBR partition format is 2TB. If your disk partition is in MBR format and needs to be expanded beyond 2TB, it is recommended to create and mount a new data disk, then copy the data to the new disk after using the GPT partition format. |
Billing Description
Expanded capacity fees will be charged after cloud disk expansion. For cloud disks in different billing modes:
Monthly Subscribed Cloud Disks: The expansion capacity is priced based on the remaining time of the lifecycle, making up the difference between the new and old configurations. The specific situation depends on the actual circumstances, which can be viewed on the payment page.
Pay-as-you-go cloud disks: The changes take effect immediately and billing commences based on the newly configured price.
Billing rules for monthly subscribed cloud disks:
The price difference should be made up based on the number of days. Configuration upgrade fees = price difference for upgrade per month number of months for upgrade applicable discount.
Price difference for the upgrade per month: Unit price difference between the new and old configurations.
Number of months for upgrade: Upgrade fees are calculated by month based on the number of days.
Number of days for upgrade = resource expiration time - current time
Number of months for upgrade = number of days for upgrade / (365/12)
Applicable discount: The applicable discount is matched based on the number of months for upgrade as effective at the official website.
Note
This operation doesn't affect the resource expiration time.
This operation allows you to use vouchers and free credits for fees deduction.
Billing Example
Note
The following prices are for illustrative purposes only and do not reflect the actual prices on the official website. For actual cloud disk prices, see Cloud Disk Storage Space Price Overview.
A user in the Guangzhou region purchased a 200GB monthly subscription Balanced SSD cloud disk for a duration of one month on May 1, 2022, to be used as a data disk. On May 5, 2022, the disk was expanded to 300GB. The cost calculation is as follows:
Price difference for upgrade per month = 150 - 100 = 50 CNY/month
Number of days for upgrade = 27 days
Applicable discount = No discount available
Final total upgrade cost = 50 x (27 / (365/12)) x 1 = 44.38 CNY