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Step 1: Configure Basic Settings

Updated on 2024-09-06 GMT+08:00

Basic Settings

  1. Log in to the ECS console and buy an ECS.
  2. Select a region.

    ECSs in different regions cannot communicate with each other over an intranet. For low network latency and quick resource access, select the nearest region.

  3. Select a billing mode, Yearly/Monthly, Pay-per-use, or Spot pricing.
    • In Yearly/Monthly billing mode, you can select a required duration. Then, the system deducts the fees incurred at one time based on the service price.
      NOTE:

      Yearly/Monthly ECSs cannot be deleted. If the ECS is no longer required, go to the Elastic Cloud Server page and choose More > Unsubscribe in the Operation column of this ECS.

    • In Pay-per-use billing mode, after configuring basic settings, you do not need to select a required duration. Then, the system deducts the fees incurred based on the service duration.
    • In Spot pricing billing mode, your purchased ECS is billed based on the service duration at a lower price than that of a pay-per-use ECS with the same specifications. However, a spot ECS may be reclaimed at any time based on the market price or changes in supply and demand. For more information about spot ECSs, see Spot Pricing ECSs.
  4. Select an AZ.

    An AZ is a physical location that uses independent power supply and networks. AZs in the same region can communicate with each other over an intranet.

    • To enhance application availability, create ECSs in different AZs.
    • To shorten network latency, create ECSs in the same AZ.
    NOTE:
    • During the creation process, you can select a random AZ. The system will use a hash algorithm to select an AZ as the default AZ based on your universally unique identifier (UUID).
    • The available ECS types and flavors vary depending on AZs. To view all supported ECS types and flavors on the cloud service platform, set AZ to Random. Then, the system automatically allocates an AZ according to your selected ECS flavor.

      For example, S3 ECSs are available only in AZ1; S2 ECSs are available in AZ2 and AZ3 and have been sold out in AZ1. If you set AZ to Random, you can view both S3 and S2 ECSs. If you create an S3 ECS, the system automatically allocates it to AZ1. If you create an S2 ECS, the system randomly allocates it to AZ2 or AZ3.

  5. Set Spot Type.

    This parameter is optional and is displayed only when Billing Mode is set to Spot pricing. You can select Spot or Spot block. For details, see Spot Pricing ECSs.

  6. (Optional) Select a CPU architecture.

    This configuration is displayed when you select By Type for Instance Selection.

    • x86

      The x86 CPU architecture uses Complex Instruction Set Computer (CISC). CISC is a microprocessor that executes a large number of instructions with different lengths. Single instructions can execute multi-step operations or several low-level operations, which is time-consuming.

    • Kunpeng

      The Kunpeng CPU architecture uses Reduced Instruction Set Computer (RISC). RISC is a microprocessor that executes fewer types of computer instructions but at a higher speed than CISC. RISC simplifies the computer architecture and speeds up the instruction execution. Therefore, the Kunpeng architecture provides higher density, lower power consumption, and higher cost-effectiveness than x86.

  7. Set Specifications.

    The cloud platform provides various ECS types for different application scenarios. You can choose from existing ECS types and flavors in the list. Alternatively, you can enter a flavor or specify vCPUs and memory size to search for the flavor suited to your needs.

    NOTE:
    • Before selecting an ECS type, learn about the introduction and notes on each type of ECSs. For details, see ECS Types.
    • When purchasing an ECS, sold-out vCPU and memory resources cannot be selected. You can select Hide sold-out specifications to hide specifications that have been sold out.
  8. Select an image.
    • Public image

      A public image is a standard, widely used image. It contains an OS and preinstalled public applications and is available to all users. You can configure the runtime environment or software in the public image as needed.

    • Private image

      A private image is an image available only to the user who created it. It contains an OS, preinstalled public applications, and the user's private applications. Using a customized private image, you can create ECSs tailored to your needs in batches.

      For instructions about how to create a private image, see Creating a Private Image.

      You can also select an encrypted image. For more information about encrypted images, see Encrypting Images.

      NOTE:
      • If you use a full-ECS image to create an ECS, the EVS disks associated with the full-ECS image do not support the function of creating disks using a data disk image.
      • If a full-ECS image is in Normal state and the system displays message "Available in AZx", the full-ECS image can be used to create ECSs in this AZ only, and the encryption attributes of the system and data disks of the created ECSs are the same as those of the system and data disks specified in the full-ECS image. Additionally, the SCSI, data encryption, and sharing attribute settings of the system and data disks cannot be modified during ECS creation.
      • If a full-ECS image is in Normal state but the system does not display message "Available in AZx", the full-ECS image can be used to create ECSs in the entire region, and the encryption attributes of the system and data disks of the created ECSs are the same as those of the system and data disks specified in the full-ECS image. Additionally, the SCSI, data encryption, and sharing attribute settings of data disks can be modified during ECS creation.
      • An ISO image created from an ISO file cannot be used to create ECSs. You need to install an OS and drivers on the ECS and use the ECS to create a system disk image first.
      • ECSs created from ISO images cannot be directly used because some functions like disk attachment are restricted.
      • To ensure that NIC multi-queue is enabled on an ECS created using a private image, configure NIC multi-queue when creating such a private image. NIC multi-queue routes NIC interrupt requests among multiple vCPUs for higher network packets per second (PPS) and bandwidth.

        For details, see How Do I Enable NIC Multi-Queue for an Image?

    • Shared image

      A shared image is a private image shared by another user.

    • KooGallery image

      This parameter is available only when Billing Mode is set to Yearly/Monthly or Pay-per-use. KooGallery images are high-quality third-party images that have OSs, application environments, and software preinstalled. You can use the images to deploy websites and application development environments with a few clicks, and no additional configuration operation is required.

      If you use a KooGallery image, after you click KooGallery image, the system displays KooGallery images for you to choose from. For example, if the image product is name1 (test_001), name1 is the image name, and test_001 is the product name. You can search for your desired KooGallery image by image name or product name. Alternatively, you can click the image name to view more information about the image.

  9. (Optional) Set Protection.

    When using certain public images, you are advised to enable protection to improve the overall security for ECSs. HSS is designed to improve the overall security for ECSs. It reduces intrusion risks with asset management, vulnerability management, intrusion detection, and baseline inspection functions.

    Select one of the following options:
    • Basic edition (one-month free trial): After this function is enabled, the HSS basic edition can be used free of charge for 30 days. The HSS basic edition supports detection of OS vulnerabilities, weak passwords, and brute force cracking to improve the overall security for your ECSs.
      NOTE:

      After the free trial period expires, the HSS basic edition quotas will be automatically released, and HSS will not protect your servers.

      If you want to retain or upgrade HSS security capabilities, you are advised to enable the advanced HSS edition. For details, see What Should I Do When the Free Trial of HSS Basic Edition Expires?

      This option is selected by default.

    • Advanced HSS edition (paid): You can choose from HSS basic, enterprise, premium, and Web Temper Protection (WTP) editions and you need to pay for it.

      After ECSs are purchased, you can switch between different editions on the HSS console after Advanced HSS edition (paid) is enabled. For details about the differences among different editions, see Specifications of Different Editions.

    • None: HSS is disabled and servers are not protected.

    After you select an HSS edition, the system automatically installs the HSS agent, enables account cracking prevention, and offers host security functions.

  10. (Optional) Set License Type.

    Specifies a license type for using an OS or software. This parameter is displayed only when the selected image is billed.

    • Bring your own license (BYOL)

      Allows you to use your existing OS license. In such a case, you do not need to apply for a license again.

    For more information about license types, see License Types.

  11. Set System Disk and Data Disk if required.
    Disks are classified as EVS disks and DSS disks based on whether the storage resources used by the disks are dedicated. DSS disks allow you to use dedicated storage resources.
    • If you have requested for a storage pool on the DSS page, click the DSS tab and create disks in the obtained storage pool.
    • If you have not requested for a dedicated storage pool, click the Disks tab and create EVS disks that use public storage resources.
      NOTE:
      • When you use DSS resources to create a disk, the disk type must be the same as that of the requested storage pool. For example, both are of high I/O type.
      • For more information about DSS, see Dedicated Distributed Storage Service.
    • System disk

      For details about the disk types supported by ECS, see Disk Types and Performance.

      • If the image based on which an ECS is created is not encrypted, the system disk of the ECS is not encrypted. If the image based on which an ECS is created is encrypted, the system disk of the ECS is automatically encrypted. For details, see (Optional) Encryption-related parameters.
    • Data disk

      You can create multiple data disks for an ECS and enable required functions for each data disk. During the creation process, you can add a maximum of 23 data disks for each ECS and customize the disk size as needed.

      Click Show and set the following functions if required:

      • SCSI: indicates that the device type of the data disk is SCSI if you select this option. For more information about SCSI disks and the ECSs that can be attached with SCSI disks, see Device Types and Usage Instructions.
      • Share: indicates that the EVS disk is sharable if you select this option. Such an EVS disk can be attached to multiple ECSs.
      • Encryption: indicates that the data disk is encrypted if you select this option. For details, see (Optional) Encryption-related parameters.
    • (Optional) Encryption-related parameters

      To enable encryption, click Create Xrole to assign KMS access permissions to EVS. If you have rights granting permission, assign the KMS access permissions to EVS. If you do not have the permission, contact the user having the security administrator rights to assign the KMS access permissions.

      • Encryption: indicates that the EVS disk has been encrypted.
      • Create Xrole: assigns KMS access permissions to EVS to obtain KMS keys. After the permissions are assigned, follow-up operations do not require assigning permissions again.
      • Xrole Name: set to EVSAccessKMS, which means that permissions have been assigned to EVS to obtain KMS keys for encrypting or decrypting EVS disks.
      • KMS Key Name: specifies the name of the key used by the encrypted EVS disk. You can select an existing key, or click Create KMS Key and create a new one on the KMS console. The default value is evs/default.
      • KMS Key ID: specifies the ID of the key used by the encrypted data disk.
    NOTE:

    If you detach the system disk purchased when you buy a yearly/monthly ECS and want to continue using it as a system disk, you can only attach it to the original ECS. If you want to use it as a data disk, you can attach it to any ECS.

    If you detach the non-shared data disk purchased when you buy a yearly/monthly ECS and want to attach it again, you can only attach it to the original ECS as a data disk.

    The data disk purchased when you buy a yearly/monthly ECS does not support separate renewal, unsubscription, automatic service renewal, conversion to pay-per-use payment, and release.

  12. Click Next: Configure Network.

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