Modifying the Specifications of a FlexusL Instance

Scenarios

If the vCPUs, memory, system disk capacity, peak bandwidth, or data package of your FlexusL instance cannot meet your service requirements, you can upgrade the instance.

When you upgrade a FlexusL instance, the vCPUs, memory, system disk capacity, peak bandwidth, and data package packed into the instance are upgraded together to new specifications not lower than the current ones. For example, the following upgrade is not supported because the new peak bandwidth and data package are lower than the current ones.

**Table 1** Unsupported upgrade
Instance Specifications	vCPUs \| Memory	System Disk	Peak Bandwidth	Data Package
Current	2 vCPUs \| 8 GiB	120 GiB	10 Mbps	2,000 GB
New	4 vCPUs \| 8 GiB	180 GiB	6 Mbps	1,200 GB

Constraints

Resources (vCPUs, memory, data package, peak bandwidth, and system disk capacity) included in a FlexusL instance cannot be upgraded separately. They must be upgraded together.
Instance specifications can only be upgraded, not downgraded. Upgraded instance specifications cannot be downgraded either.

Change Impact

**Table 2** Change impact
Item	Impact
System disks	If the system disk capacity expansion is required, no additional operations like extending partitions or file systems are needed. Your existing data remains unchanged. If the new system disk capacity is already displayed on the console but the file systems are not expanded after you log in to the instance, you can expand the file system manually by referring to the following instructions: For Windows, see Extending Disk Partitions and File Systems (Windows). For Linux, see Extending Disk Partitions and File Systems (Linux).
Data Package	The used traffic remains unchanged. The monthly data package quota is changed to that of the new specifications.
Services	You need to stop the server before modifying the specifications. You are advised to modifying the specifications during off-peak hours.
Other	After the specifications are modified, the server expiration time and IP address remain unchanged, and the data on the system and data disks is not affected. Other resources are upgraded based on the new specifications.

Billing

When upgrading specifications, you need to pay the difference in price. For details, see "Pricing of a Changed Specification" > "Specification Upgrades".

Preparations

An upgrade failure may result in server data loss. You are advised to back up the data using CBR before you continue. For details, see Method 2: Manual Backup.

Procedure

Log in to the FlexusL console.
Upgrade the FlexusL instances using any of the following methods:
- Locate the target FlexusL instance and choose > Upgrade.
- On the Flexus L Instance page, click the target instance name. On the displayed page, choose > Upgrade in the upper right corner.
Select desired instance specifications on the displayed page.
Grayed-out specifications are not supported for the upgrade.

Before upgrading specifications, stop the server first or select Stop server on the Instance Upgrade page.
Read and agree to the agreement, click Submit, and complete the payment.
Wait until the upgrade is complete and check whether the specifications are upgraded.