Updated on 2024-09-27 GMT+08:00

Instance Specifications

This section describes the resources contained in a FlexusL service package.

Instance Specifications

A cloud server packaged in a FlexusL instance uses the x86 architecture and the same underlying hardware resources as an ECS. It delivers the same compute performance as an ECS with the same vCPUs and memory.

Instance specifications include vCPUs and memory, a system disk, a data package, and an EIP. You can associate EVS disks, HSS, or cloud backup vaults with your FlexusL instance as needed.

For details, see Resource Configuration for FlexusL Instances.

Table 1 Instance specifications

vCPU | Memory

System Disk Capacity | Type

Peak Bandwidth | Data Package

(Optional) Associated Service Resources

2 vCPUs | 1 GiB

40 GiB | General Purpose SSD

30 Mbit/s | 2084 GB

The following service resources can be purchased together with FlexusL instances:

  • Data disk: General Purpose SSD V2 | Custom capacity
  • HSS: Basic edition
  • CBR: Server backup | Custom vault capacity

2 vCPUs | 2 GiB

60 GiB | General Purpose SSD

30 Mbit/s | 3072 GB

2 vCPUs | 4 GiB

80 GiB | General Purpose SSD

30 Mbit/s | 4096 GB

2 vCPUs | 8 GiB

160 GiB | General Purpose SSD

30 Mbit/s | 5120 GB

4 vCPUs | 8 GiB

240 GiB | General Purpose SSD

30 Mbit/s | 6144 GB

4 vCPUs | 16 GiB

320 GiB | General Purpose SSD

30 Mbit/s | 7168 GB

EVS Disk

In a service package, an EVS disk is attached to a FlexusL instance and is detached, renewed, or unsubscribed together with the instance.

EVS Disk

Type

Constraints

System disk

General Purpose SSD

  • Each FlexusL instance can only have one system disk attached.
  • The system disk cannot be expanded or detached, and no more system disks can be attached.

Data disk

General Purpose SSD V2

  • Each FlexusL instance can only have one data disk attached.
  • Data disks can only be attached or expanded on the FlexusL console. Existing data disks cannot be attached to FlexusL instances.
  • Data disks cannot be detached.

For details about EVS disks, see Disk Types and Performance.

Network

Network Setting

Description

Private network

  • After a FlexusL instance is created, a fixed VPC is configured for it by default. You cannot customize the VPC.
  • By default, FlexusL instances created by the same account in the same region are located in the same VPC. They can communicate with each other over a private network.

    When cloud resources (such as ECSs and cloud databases) created by the same account in the same region are located in the same VPC (vpc-default-smb) as FlexusL instances, they can communicate with each other over a private network. If they are not in the same VPC, they can communicate with each other through peering connection. For details, see VPC Peering Connection Usage Examples.

  • FlexusL instances that are created by different accounts or located in different regions are located in different VPCs and they cannot communicate with each other over a private network. To access FlexusL instances and cloud resources in other VPCs, you can use the following methods:
    • Cloud Connect: enables cross-account or cross-region access with other FlexusL instances or cloud resources (such as ECSs and cloud databases). For details, see Cloud Connect.
    • Peering connection: enables intra-account or cross-account access with other FlexusL instances or cloud resources in the same region. For details, see VPC Peering Connection Usage Examples.
  • The private IP address of a FlexusL instance cannot be changed.

EIP

After a FlexusL instance is created, a fixed elastic IP address (EIP) is assigned by default. The EIP has the following constraints:

  • The EIP of the FlexusL instance cannot be unbound or changed.
  • The EIP will not be retained after the FlexusL instance is released.
  • IPv6 addresses cannot be configured for FlexusL instances.

Data package

A monthly data package is included in the FlexusL instance. Any traffic usage in excess of the package is billed on a pay-per-use basis. Data packages cannot be purchased or upgraded separately.

  • EIPs are billed by traffic. You cannot change the EIP billing mode.
  • Only outbound traffic (originating from your server) will be billed.
  • The data package included in the FlexusL service package is a monthly package. A monthly data package starts on the date of purchase and ends at 23:59:59 on the same day of the next month. For example, if you purchase a FlexusL instance at 10:00:00 on June 5, the expiration time of the package is at 23:59:59 (the last second of the day) on July 5. The package for the next month starts from 23:59:59 on July 5 to 23:59:59 on August 5.
  • Service traffic is preferentially deducted from the data package. Any traffic usage in excess of the package is billed by traffic. The excess traffic is billed based on a tiered pricing model, and the unit price varies in different regions.
  • The traffic quota is reset each month. Any unused portion of the data package cannot be rolled over to the next month.
  • After you unsubscribe from or stop a FlexusL instance, the excess traffic will no longer generate costs.

Peak EIP bandwidth

  • Outbound peak bandwidth
    • The peak bandwidth in the FlexusL service package refers to the outbound peak bandwidth, that is, the maximum bandwidth for the FlexusL instance to access the Internet.
    • The peak bandwidth cannot be changed separately.
    NOTE:

    The peak bandwidth is not used as a service commitment and is only used as a reference for the bandwidth upper limit. If resource contention occurs, the peak bandwidth may be limited.

  • Inbound peak bandwidth
    • If the outbound peak bandwidth of a package is not greater than 10 Mbit/s, the inbound peak bandwidth is 10 Mbit/s.
    • If the outbound peak bandwidth of a package is greater than 10 Mbit/s, the inbound peak bandwidth is the same as the outbound peak bandwidth.

HSS

HSS basic edition provides intrusion detection, vulnerability management, and baseline inspection. For details, see HSS Editions and Features.

CBR

You can back up all EVS disks (including system and data disks) and restore data from backups.