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Why Does a Linux ECS with a SCSI Disk Attached Fails to Be Restarted? Symptom For a Linux ECS with a SCSI disk attached, if you have enabled automatic SCSI disk attachment upon ECS startup in /etc/fstab and the disk drive letter (for example, /dev/sdb) is used, the ECS fails to restart
Why Does the Disk Drive Letter Change After the ECS Is Restarted? Symptom For a Linux ECS, the drive letter may change after an EVS disk is detached and then attached again, or after an EVS disk is detached and then the ECS is restarted. Possible Causes When a Linux ECS has multiple
Why Is the Device Name of My C6 ECS in the sd* Format? Symptom The device name of previously purchased C6 ECSs is in vd* format, for example, vda and vdb, but the device name of newly purchased C6 ECSs is in sd* format. This section describes the reason why the device name is changed
How Can I Obtain the Key Pair Used by My ECS? Symptom You have created multiple key pairs, and you are trying to find the key pair to log in to the target ECS. Procedure Log in to the management console. Click in the upper left corner and select a region and project. Under Compute
How Can I View and Modify Kernel Parameters of a Linux ECS? This document describes common Linux kernel parameters and how to view and modify them. Modify the kernel parameters only if the parameter settings affect your services. If the parameter settings must be modified, perform
How Can I Boot a Linux ECS into Debug Shell Mode? Scenarios Debug Shell is an emergency command line interface (CLI). When the Linux systemd cannot start properly or has a serious fault, you can use Debug Shell to rectify faults as user root without entering the password. Debug Shell
What Should I Do If Emails Configured on an ECS Cannot Be Sent? Solution For the emails sent using the browser: When you use a browser to log in to your mailbox, HTTP is used, and the default port number is 80. However, SMTP is used between email servers. If you use a browser to send
How Do I Troubleshoot an Unresponsive Website Hosted on My ECS? Symptom Websites running on an ECS might become unreachable for multiple reasons. Check whether the configurations of network, port, firewall, or security group of the ECS are correct. Fault Locating If an error is displayed
How Do I Troubleshoot an Unresponsive Website Hosted on My ECS? Symptom Websites running on an ECS might become unreachable for multiple reasons. Check whether the configurations of network, port, firewall, or security group of the ECS are correct. Fault Locating If an error is displayed
How Do I Apply for a License for Authenticating Multi-User Sessions and Activate an ECS? Scenarios This section describes how to configure remote desktop services and activate an ECS. The ECS running Windows Server 2012 is used as an example. Procedure Applying for a License for Authenticating
How Do I Attach an Extension NIC to a Windows ECS for Accessing the Internet? Scenarios A Windows ECS has one primary NIC and one extension NIC attached. Both the NICs have an EIP bound to access the Internet. Constraints Do not modify the primary NIC settings. Procedure Log in to
How Do I Restore Data in the Event of a Startup Failure on a Windows ECS? Symptom If logging in to a Windows ECS failed, the system automatically starts the recovery option. However, an error is reported after the recovery option is selected, and the system recovery cannot continue
Why Can't I Open the Start Menu and Search Box on a Windows ECS? Symptom You can log in to the newly created Windows ECS, but the system does not respond when you click Start menu button and the search box. Possible Causes The AppX Deployment Service (AppXSVC) uses too many system
Why Cannot the EIP Bound to the Extension NIC of My ECS Access the Internet? Symptom Your ECS has one primary NIC and one extension NIC in the same subnet. Both the NICs have an EIP bound to access the Internet. The EIP bound to the primary NIC can access the Internet, but that bound
Why Does the NIC Names Change After I Start a Linux ECS? Scenarios After an ECS running CentOS 6 created using a private image starts, the first NIC is named as eth1, rather than eth0. This solution provided in this section involves restarting the ECS. Restarting the ECS will interrupt
Why Is the Space Not Released After I Delete a Large File on a Linux ECS? Symptom The space usage of the root directory on a Linux ECS is too high, for example, 96%, as shown in Figure 1. Figure 1 Too high space usage of the root directory You find that the access_log file generated
What Should I Do If the IP Settings of My Linux ECS Are Lost? Symptom When an ECS has been running continuously for a long time without being restarted, the IP address settings may be lost, ECSs may be disconnected, or the network may break down. Figure 1 Symptom Possible Causes The
Why Can't I Use the Local Computer to Connect to My Windows ECS? Symptom An error message is displayed indicating that your local computer cannot connect to the remote computer. Figure 1 Cannot connect to the remote computer Possible Causes Port 3389 of the security group on the ECS
How Do I Troubleshoot Slow Connections to a Website Hosted on My ECS? Symptom A complete HTTP request includes domain name resolution, TCP connection establishment, request initiation, processing of the request and returning a processing result by the server, parsing of the HTML code
Querying the Target Flavors to Which an ECS Flavor Can Be Changed (Discarded) Function An ECS flavor cannot be changed to certain flavors. This API is used to query the target flavors to which a specified ECS flavor can be changed. This API has been discarded. Use the API described
