purchase guide - static.huaweicloud.com · elastic cloud server purchase guide issue 01 date...

Elastic Cloud Server

Purchase Guide

Issue 01

Date 2017-08-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2017. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respectiveholders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees orrepresentations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 01 (2017-08-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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Contents

1 Overview......................................................................................................................................... 1

2 ECS Charging Standards..............................................................................................................2

3 Purchasing an ECS........................................................................................................................ 3

4 Modifying ECS Specifications..................................................................................................13

5 ECS Renewal................................................................................................................................ 19

Elastic Cloud ServerPurchase Guide Contents


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1 Overview

An Elastic Cloud Server (ECS) is a computing server that consists of CPUs, memory, images,and Elastic Volume Service (EVS) disks and allows on-demand allocation and elastic scaling.The ECS service integrates virtual private cloud (VPC), virtual firewall, and multi-data-copycapabilities to build up an efficient, reliable, and secure computing environment for you toensure stable, continuous running of your services.

The self-service feature of the ECS service allows you to apply for an ECS by yourself. Youare only required to specify CPU, memory, and image specifications. Then, the ECS yourequested is allocated within the minimum time required. In addition, you can modify ECSspecifications based on your requirements at any time.

Elastic Cloud ServerPurchase Guide 1 Overview


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2 ECS Charging Standards

ECSs can be charged in Yearly/Monthly or Metered mode.

Elastic Cloud ServerPurchase Guide 2 ECS Charging Standards


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3 Purchasing an ECS

ScenariosIf you are required to deploy services on servers, ECSs are more cost-effective than physicalservers. Within minutes, you can obtain ECS resources from the public cloud platform. ECSresources are flexible and on-demand. This section describes how to purchase an ECS.

NotesDedicated physical resources

To make an ECS run on isolated physical hardware, apply for a Dedicated Cloud (DeC)before creating the ECS.

For details about DeC and how to apply for DeC, see Dedicated Cloud User Guide.

Procedure1. Log in to the public cloud website http://www.hwclouds.com.2. Click Register in the upper right corner of the page.

The registration page is displayed. Enter required information as prompted to register anaccount. For details, see section Register on Public Cloud Management Console.After you register successfully, the system automatically redirects you to your personalinformation page.

3. Return to the homepage of the public cloud website, and click ECS in the Product areaat the bottom of the page.The Elastic Cloud Server page is displayed.

4. Select a charging mode for the ECS.You can select Yearly/Monthly or Metered.– Yearly/Monthly: You can set the service duration as required after specifying the

configurations of ECSs you want to purchase. The service duration ranges from onemonth to three years. The system deducts all the fees incurred from your accountbased on the service price at one time.

NOTE

The ECSs paid in monthly/yearly mode cannot be deleted. They support only resourceunsubscription. To unsubscribe such an ECS, click User Center in the upper right corner ofthe page and perform resource unsubscription operations.

Elastic Cloud ServerPurchase Guide 3 Purchasing an ECS


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– Metered: You do not need to set the service duration after specifying theconfigurations of ECSs you want to purchase. The default service duration is hours.The system deducts the fees incurred from your account by hour.

5. Configure basic information about the ECS to be created.When purchasing an ECS, you are not allowed to select sold-out CPU and memoryresources.

Table 3-1 Parameter descriptions

Parameter Description Example Value

ECS Name Specifies the ECS name, which can becustomized.If you want to purchase multiple ECSs at atime, the system automatically sequencesthese ECSs.

ecs_test

AZ A physical region where resources useindependent power supplies and networks.AZs are physically isolated butinterconnected through an internal network.To enhance application availability, createECSs in different AZs.

az-01

ECS Type The public cloud provides various ECSs foryou to select based on application scenarios.NOTE

Before selecting an ECS type, familiarize yourselfwith various ECSs. For details, see sections ECSTypes and Specifications and Scenarios.

General-purpose

Local Disk Specifies the local storage for the physicalmachine where the ECS is deployed. Onlyhard disk drives (HDDs) are supported. If youselect the disk-intensive ECS type, the systemautomatically attaches local disks to the ECS.For example, if the Local Disk value is 3 x1800 GB, three HDD disks are attached to theECS and the capacity of each disk is 1800GB.

3 x 1800 GB



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Image Type l Public ImageA public image is a standard, widely usedimage. It contains an OS and preinstalledpublic applications and is available to allusers. You can configure the applicationsor software in the public image as needed.To select a public image, set Image Typeto Public Image and choose a desired onefrom the Image drop-down lists.

l Private ImageA private image is an image available onlyto the user who created it. It contains anOS, preinstalled public applications, andthe user's private applications. Using aprivate image to create ECSs removes theneed to configure multiple ECSsrepeatedly.To select a private image, set Image Typeto Private Image and choose a desiredone from the Image drop-down list. Youcan also select an encrypted image. Fordetails, see Image Management ServiceUser Guide.

l Shared ImageA shared image is a private image sharedby another public cloud user.To select a shared image, set Image Typeto Shared Image and choose a desiredone from the Image drop-down list.

l Marketplace ImageThe Marketplace is a store where you canbuy third-party images that have the OS,application environment, and softwarepre-installed. You can use the images todeploy websites and applicationdevelopment environments with a fewclicks, and no additional configurationoperation is required.To select a Marketplace image, set Image

Type to Marketplace Image, click ,and choose a desired one in the displayeddialog box.

Public Image



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Image l WindowsUsed for development platforms oroperating services that run Windows. Anauthorized license is included in theimage.To use a Windows image, the system diskcapacity must be at least 40 GB and thememory capacity must be at least 1 GB.ECSs created using a Windows imagesupport the installation of InternetInformation Services (IIS) and SQLservers.

l LinuxUsed for development platforms oroperating services that run Linux.To use a Linux image, the system diskcapacity must be at least 40 GB. There isno minimum memory capacity.NOTE

Because 32bit OSs allow addressing onlywithin a 4 GB memory range, if the requiredmemory capacity is 4 GB or larger, select a64bit OS.

CentOS 7.2 64bit



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Disk Also called EVS disk, which can be a systemdisk or a data disk.l System disk

If the image based on which an ECS iscreated is not encrypted, the system diskof the ECS is not encrypted. In addition,Unencrypted is displayed for the systemdisk on the page. If the image based onwhich an ECS is created is encrypted, thesystem disk of the ECS is automaticallyencrypted. For details, see section(Optional) Encryption-relatedparameters.

l Data diskYou can create multiple data disks for anECS and configure sharing and encryptionfor each data disk.– Share: indicates that the EVS disk is

shared. Such an EVS disk can beattached to multiple ECSs.

– Encryption: indicates that the datadisk is encrypted. For details, seesection (Optional) Encryption-related parameters.

l (Optional) Encryption-related parametersTo enable encryption, click Create Xroleto grant KMS access rights to EVS. If youhave rights granting permission, grant theKMS access rights to EVS. If you do nothave the permission, contact the userhaving the security administrator rights toadd the security administrator rights foryou. Then, grant the KMS access rights toEVS. For details, see section Who CanUse the Encryption Feature?– Encrypted: indicates that the EVS disk

has been encrypted.– Create Xrole: grants KMS access

rights to EVS to obtain KMS keys.After the rights are granted, follow-upoperations do not require rightsgranting again.

– KMS Key Name: specifies the nameof the key used by the encrypted EVSdisk. By default, the name is evs/default.

System disk:ultra-high I/O, 40GB



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– Xrole Name:EVSAccessKMS:specifies that rights have been grantedto EVS to obtain KMS keys forencrypting or decrypting EVS disks.

– KMS Key ID: specifies the ID of thekey used by the encrypted data disk.

For the disk types supported by an ECS, seeData Storage. For more information aboutEVS disks, see the Elastic Volume ServiceUser Guide.

6. Configure network information about the ECS.

Table 3-2 Parameter descriptions


VPC Provides a network, including subnet andsecurity group, for an ECS.You can select an existing VPC, or click ViewVPC and create a desired one.For more information about VPC, see VirtualPrivate Cloud User Guide.

N/A



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Security Group Controls ECS access within a security groupor between security groups by defining accessrules. This enhances ECS security.When creating an ECS, you can selectmultiple security groups (no more than five isrecommended). In such a case, the accessrules of all the selected security groups applyon the ECS.Security group rules determine ECS accessand usage. For instructions about how toconfigure a security group rule, see sectionAdding a Security Group Rule.NOTE

Before initializing an ECS, ensure that securitygroup rules in the outbound direction meet thefollowing requirements:

l Protocol: TCP

l Port Range: 80

l Remote End: 169.254.0.0/16

If you use the default security group rules in theoutbound direction, the preceding requirements aremet, and the ECS can be initialized. Defaultsecurity group rules in the outbound direction areas follows:

l Protocol: ANY

l Port Range: ANY

l Remote End: 0.0.0.0/16

N/A

NIC Includes primary and extension NICs.You can add multiple extension NICs to anECS.MTU Settings: optionalIf your ECS is of or high-performance ordisk-intensive type, you can click MTUSettings to configure the maximumtransmission unit (MTU) for a to-be-addedextension NIC for improving networkperformance.An MTU can only be a number, ranging from1280 to 8888.

N/A



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Elastic IPAddress

A static public IP address bound to an ECS ina VPC. Using the EIP, the ECS providesservices externally.The following options are provided:l Do Not Use

Without an elastic IP address (EIP), theECS cannot access the Internet and is usedonly in the private network or cluster.

l Automatically AssignThe system automatically assigns an EIPfor the ECS. The EIP provides exclusivebandwidth that is configurable.

l SpecifyAn existing EIP is assigned for the ECS.When using an existing EIP, you cannotcreate ECSs in batches.

AutomaticallyAssign

Charging Mode This parameter is mandatory when Elastic IPAddress is set to Automatically Assign.It indicates the bandwidth charging mode ofthe purchase EIP, which includes thefollowing options:l By bandwidth: You are charged by the

purchased bandwidth.l By traffic: You are charged based on the

actual traffic you have used.

By bandwidth

7. Configure the login mode.

– Key pair

A key pair is used for ECS login authentication. You can select an existing key pair,or click View Key Pair and create a desired one.

NOTE

If you use an existing key pair, make sure that you have saved the key file locally. Otherwise,logging in to the ECS will fail.

– Password

The initial password of user root (for Linux) or user Administrator (for Windows)is used for authentication. You can log in to an ECS using the username and itsinitial password.

8. Configure Advanced Settings.

Click Show for the following parameters:

– File Injection

Enables the system to automatically inject a script file or other files into a specifieddirectory on an ECS when you create the ECS. This configuration is optional. Fordetailed operations, see section (Optional) Injecting Files into ECSs.



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– User Data InjectionEnables the ECS to automatically inject user data when the ECS starts for the firsttime. This configuration is optional. For detailed operations, see section (Optional)Injecting User Data into ECSs.

– ECS GroupAn ECS group applies the anti-affinity policy to the ECSs in it so that the ECSs canbe distributed on different hosts. For instructions about how to create an ECS group,see section (Optional) Creating an ECS Group.

9. Configure the number of ECSs to be purchased.– Validity Period: sets the service duration if you select the Yearly/Monthly

charging mode. The service duration ranges from one month to three years.– Purchase Quantity: sets the number of ECSs to be purchased.

The maximum number of ECSs you are allowed to purchase is displayed. To ensureeffective resource usage, an upper limit is set on the ECSs to be purchased. If thenumber of ECSs you need exceeds the maximum number of ECSs you are allowedto purchase, click Apply for Higher Quota to obtain higher quota. You canpurchase the ECSs you need after the request is approved.

– Price: shows the ECS configuration fee.For details, click Price Details.

10. Click Buy Now.– If you select Metered, click Buy Now.– If you have any question about the price, click Price Details on the right of Price.

11. On the page for you to confirm ECS specifications, you can view details about theapplication and submit the application.– In Yearly/Monthly charging mode, after confirming the specifications and price of

the order, select I have read and agree to Huawei Elastic Cloud ServerAgreement and System Image Disclaimer and click Submit Order. If you do notwant to pay the order now, click Conform Order and Pay Later on the right ofSubmit Order. The system reserves your order. You can choose Order > UnpaidOrders on the page showing your personal information to locate your unpaid orderand click Pay Now or Cancel Order.

– In Metered charging mode, after confirming the specifications and price of theorder, select I have read and agree to Huawei Elastic Cloud Server Agreementand System Image Disclaimer and click Submit Order.

12. Select a payment mode, and click OK.

NOTE

This operation applies only to the Yearly/Monthly charging mode.

– The system provides four payment modes: Pay by balance, Pay by platform, Payby online banking, and Pay by transfer and remittance.

– If you select Pay by balance, recharge your account in time to ensure that youraccount has sufficient balance to pay your order.

– If you select Pay by platform and Pay by online banking, perform operations asprompted to pay your order.

– If you select Pay by transfer and remittance, transfer money to a specifiedaccount based on information provided on the displayed page and submit a workorder.



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13. The system performs different operations for different charging modes.– Yearly/monthly: Pay for the ECS as prompted by the system. After the payment

succeeds, the system automatically creates the ECS. You can query the ECScreation progress on the Elastic Cloud Server page.

– Metered: After you apply for an ECS, if the account balance is sufficient, thesystem automatically creates the ECS. You can query the ECS creation progress onthe Elastic Cloud Server page.

14. Click Buy Now.15. If you create an ECS with added data disks, initialize the disks after the ECS is created.

For details, see sections "EVS Disk Initialization (Windows)" and "EVS DiskInitialization (Linux)" in Elastic Volume Service User Guide.

Follow-up Procedurel Creating an ECS takes several minutes. You can check the progress of ECS creation by

querying the ECS creation status. For details, see section Querying ECS CreationStatus.



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4 Modifying ECS Specifications

ScenariosIf the ECS specifications or network bandwidth do not meet service requirements, you canmodify the ECS specifications.

You can modify the vCPU, memory, disk, and bandwidth specifications of an ECS, add NICsto an ECS, and change the security group for an ECS.

Modifying vCPU and Memory SpecificationsNotes

l If you want to modify the vCPU and memory specifications of an ECS that is charged inyearly or monthly mode, ensure that the price of the ECS after specificationsmodification is no lower than that of the ECS before specifications modification.

l When modifying the specifications of an ECS, you are not allowed to select sold-outCPU and memory resources.

l ECS specifications (CPU or memory) reduction degrades the ECS performance.

Procedure

1. Log in to the management console.2. Under Computing, click Elastic Cloud Server.3. In the ECS list, query the status of the ECS whose specifications you want to modify.

If the ECS is not in the stopped state, click More in the Operation column of this ECSand choose Stop.

4. Once the ECS status is Stopped, click Specifications in the Operation column.5. On the displayed page shown in Figure 4-1, select new vCPU and memory

specifications.

Elastic Cloud ServerPurchase Guide 4 Modifying ECS Specifications


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Figure 4-1 Modifying vCPU and memory specifications

6. Click OK.7. On the Modify ECS Specification page, confirm the modified vCPU and memory

specifications, read and agree to the service agreement, and click Submit Application.

Expanding EVS Disk Capacity

If disk space is insufficient, you can expand EVS disk capacity.

The process of expanding the EVS disk capacity is as follows:

1. Detach the disk.2. Expand the disk capacity.3. Attach the disk to the ECS.4. Initialize the disk.

For more details, see section EVS Disk Capacity Expansion in Elastic Volume Service UserGuide.

Adding Yearly/Monthly Disks

For ECSs purchased in yearly/monthly mode, EVS disks can be added in yearly/monthlymode. Newly-added EVS disks have the same expiration time as ECSs.

1. Log in to the management console.2. Under Computing, click Elastic Cloud Server.3. In the search box above the upper right corner of the ECS list, enter the ECS name, IP

address, or ID, and click .4. Click the name of the ECS for which an EVS disk is to be added in yearly/monthly

mode.The system displays the page providing details about the ECS.



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5. Click the EVS tab. Then, click Add Disk.The system switches to the EVS disk purchase page.

6. Specify the disk name, capacity, type, and other parameters as prompted.7. Click Buy Now.8. Verify that the disk is correctly configured, select the agreement and click Submit.

After this disk is purchased, it is automatically added to the specified ECS that ispurchased in yearly/monthly mode.

NOTE

The disk added in step 8 can only be attached to the original ECS after being detached.

Adding a NIC

If the current capacity is insufficient, you can add more NICs to your ECS. To add a NIC tothe ECS, perform the following operations:

1. Log in to the management console.2. Under Computing, click Elastic Cloud Server.3. In the search box above the upper right corner of the ECS list, enter the ECS name, IP

address, or ID, and click .4. Click the name of the target ECS.

The system displays the page providing details about the ECS.5. Click the NIC tab. Then, click Add NIC.6. Select the subnet and security group to be added, as shown in Figure 4-2.

NOTE

l If you want to add a NIC with a specified IP address, enter an IP address into the Private IPAddress field.

l You can select multiple security groups. In such a case, the access rules of all the selectedsecurity groups apply on the ECS.

Figure 4-2 Selecting the security group and subnet

7. Click OK.



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Follow-up procedure

Some OSs cannot identify newly added NICs. In this case, you must manually activate theNIC. Ubuntu is used as an example in the following NIC activation procedure. Requiredoperations may vary among systems. For additional information, see the documentation foryour OS.

1. Find the target ECS and click Remote Login in the Operation column.You are now logged in to the ECS.

2. Run the following command to query the NIC name:ifconfig -aIn this example, the NIC name is eth2.

3. Run the following command to switch to the corresponding directory:cd /etc/network

4. Run the following command to open the interfaces file:vi interfaces

5. Add the following information to the interfaces file:auto eth2iface eth2 inet dhcp

6. Run the following command to save and exit the interfaces file::wq

7. Run either the ifup eth2 command or the /etc/init.d/networking restart command toactivate the newly added NIC.

8. Run the ifconfig command to check whether the NIC name obtained in step 2 isdisplayed in the command output.– If the NIC name is displayed, the newly added NIC has been activated, and no

further action is required.– If the NIC name is not displayed, the newly added NIC has not been activated. In

this case, go to step 9.9. Log in to the management console. Find the target ECS, click More in the Operation

column, and then click Restart.10. Run the ifconfig command to check whether the NIC name obtained in step 2 is

displayed in the command output.– If the NIC name is displayed, no further action is required.– If the NIC name is not displayed, contact technical support for further assistance.

Deleting a NIC

An ECS can have up to 12 NICs, including one primary NIC that cannot be deleted. To deletea non-primary NIC, perform the following operations:

1. Log in to the management console.2. Under Computing, click Elastic Cloud Server.3. In the ECS list, click the name of the target ECS.

The system displays the page providing details about the ECS.4. Click the NIC tab. Then, click Delete in the row of the target NIC.



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NOTE

You are not allowed to delete the ECS primary NIC. By default, the ECS primary NIC is the firstNIC displayed in the NIC list.

5. Click OK in the displayed dialog box.

NOTE

Disk-intensive and high-performance ECSs in running state do not support NIC deletion. To delete aNIC from such an ECS, stop the ECS.

Changing the Security Group

To change the security group of an ECS NIC, perform the following operations:


The system displays the page providing details about the ECS.4. Click the NIC tab.5. Click Change Security Group in the row of the target NIC.6. In the displayed Change Security Group dialog box, select the target security group.

You can select multiple security groups. In such a case, the access rules of all theselected security groups apply on the ECS.

NOTE

Using multiple security groups may deteriorate ECS network performance. You are suggested toselect no more than five security groups.

7. Click OK.

The security group has been changed. Click to view the changed security group.Click the security group name to view details about the security group rules.

Managing Private IP Addresses

You can assign a floating private IP address for a NIC to obtain the second IP address,providing more flexible network functions.


The system displays the page providing details about the ECS.4. Click the NIC tab. Then, click Manage Private IP.5. In the Manage Private IP dialog box, select Assign floating private IP address.6. Set the subnet and IP address and click OK.

Adjusting Bandwidth

If an EIP has been bound to the ECS, the ECS can access the public network in specifiedbandwidth. To adjust the ECS bandwidth, perform the following operations:



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The system displays the page providing details about the ECS.4. Click the EIP tab. Expand the information of the EIP to be modified and click the ID

hyperlink.The EIP page is displayed.

5. Expand the information of the EIP and click Modify behind Bandwidth Size.6. Change the bandwidth name or size as prompted.



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5 ECS Renewal

ScenariosThis section describes how to renew an ECS which is about to expire. After the renewal, youcan continue to use the ECS.

Procedure1. Log in to the management console.2. Click User Center under the username on the page shown in Figure 5-1.

Figure 5-1 User center

3. Renew ECSs based on the charging mode.– Yearly/Monthly: Choose My Orders > Renew.– Metered: select Arrears.

4. Complete the renewal as prompted on the corresponding page.

Elastic Cloud ServerPurchase Guide 5 ECS Renewal


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