ZXA10 C680/C600/C650/C620
Optical Access Aggregation Equipment
Backup and Restoration Version: V1.2.1
ZTE CORPORATION No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Tel: +86-755-26771900 URL: http://support.zte.com.cn E-mail:
[email protected]
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Revision History Revision No.
Revision Date
Revision Reason
R1.1
2020-09-30
Edition update
R1.0
2020-04-30
First edition
Serial Number: SJ-20200929135033-014
Publishing Date: 2020-09-30 (R1.1)
Contents 1 Backup and Restoration Overview..........................................................1-1 2 Precautions................................................................................................ 2-1 3 Backup........................................................................................................3-1 3.1 Backup Policies.....................................................................................................3-1 3.2 Configuring the FTP server...................................................................................3-2 3.3 Backing Up Configuration Files............................................................................ 3-4 3.4 Managing NE Configuration Data Backup Tasks..................................................3-5 3.5 Backing up or Restoring the Configuration Data................................................ 3-12
4 Restoration.................................................................................................4-1 4.1 Restoration Policies.............................................................................................. 4-1 4.2 Restoration Flow................................................................................................... 4-1 4.3 Restoring System Configurations..........................................................................4-2
Glossary............................................................................................................. I
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II
Chapter 1
Backup and Restoration Overview Overview Accurate configurations are key elements for proper system operation. If the configurations are not proper, system operation will be greatly affected, even leading to irretrievable loss for system owners. During the device operation procedure, you may need to modify the configurations sometimes. To validate the modified configurations and make sure the proper configurations in abnormal cases, the system provides configuration file backup and restoration measures, which improves system serviceability.
Backup Configuration backup refers to a procedure of automatically saving the CLI or SNMP operations. If an FTP/SFTP server is configured, this procedure also refers to periodically uploading the configuration files saved on NEs to the FTP/SFTP server. Backup modes include manual backup and automatic backup.
Automatic backup refers to that the system periodically backs up configurations through periodical tasks to avoid configuration loss. Upon failures, backup files can be used to restore the system.
Manual backup refers to that system operation and maintenance personnel save the system configurations so that system configurations can be restored upon inextricable failures.
Restoration Restoration refers to the procedure of restoring system configurations when configurations are lost upon system failures. Restoration modes include:
Manual restoration
One-key restoration
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Script-based restoration
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Chapter 2
Precautions Requirements for Maintenance Personnel Before performing backup and restoration operations, maintenance engineers must learn the following:
MML commands and SNMP operation interfaces of this product.
Network structure and server deployment of this product.
Files and their paths of all servers of this product.
Configurations of FTP/SFTP SERVER user and password.
To guarantee the backup and restoration efficiency and prevent improper operations, maintenance engineers must meet the following requirements:
They must have received necessary trainings before starting to maintain the equipment.
They must be familiar with the procedures for performing operations on the equipment.
They must observe operation regulations and industry safety regulations strictly to ensure personal and equipment safety.
Forbidden Operations The following operations are forbidden in the backup and restoration procedure:
Backup and restoration in busy hours is forbidden.
Note Backup operation may affect the disk I/O and greatly affect the operation of the existing network. This operation must be performed when the system is idle, for example, at 0:00-4:00 in the early morning. Before backup operation, strict examination and approval is required to be performed by specially-assigned persons.
Table creation script execution is forbidden.
Service unloading is forbidden.
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Important lists on the server cannot be deleted.
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Chapter 3
Backup Table of Contents
Backup Policies..............................................................................................................3-1 Configuring the FTP server........................................................................................... 3-2 Backing Up Configuration Files..................................................................................... 3-4 Managing NE Configuration Data Backup Tasks.......................................................... 3-5 Backing up or Restoring the Configuration Data.........................................................3-12
3.1 Backup Policies Overview Backup is performed in two modes:
Automatic
Manual
Automatic Backup Policy The system backs up all configurations of NEs through periodical tasks, including saving the current system operation configurations to configuration files and uploading configuration files to the FTP/SFTP server. Backup configuration files are saved in the Flash of the product or uploaded to the specified directory of the FTP/SFTP server, refer to Table 3-1. Table 3-1 Automatic Backup Policy Backup Period
Backup Path
Backup File Name
Fixed time every day or a time
flash/cfg/
startrun.dat
on a day Interval for automatic backup or
File path configured on the FTP/ startrun.dat
specified time
SFTP server.
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Manual Backup Policy Before capacity expansion and upgrade, to guarantee system security, you must manually back up data so that data can be restored as needed. For the manual backup policy, refer to Table 3-2. Table 3-2 Manual Backup Policy Backup Contents
Location of Backup Files
Backup File
Backup Method
Configuration files
Saving the file on the local
startrun.dat
Refer to "3.3 Backing Up
disk before saving it on the
Configuration Files".
backup server
3.2 Configuring the FTP server This procedure describes how to configure the FTP server taking the FTP software Wftpd32.exe as an example. To configure the FTP server, perform the following steps: 1. Run the Wftpd32.exe program. The No log file open window appears, see Figure 3-1. Figure 3-1 No Log File Open Dialogue Box
2. Select Security > Users/rights... The User/Rights Security dialogue box appears, see Figure 3-2.
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Figure 3-2 User/Rights Security Dialogue Box
3. In the User/Rights Security dialogue box, click New User.... The New User dialogue box appears, see Figure 3-3. Figure 3-3 New User Dialogue Box
4. In the User Name text box, enter ftpuser, and click OK. The Change Password dialogue box appears, see Figure 3-4. Figure 3-4 Change Password Dialogue Box
5. In the New Password text box, enter ftp123, and reenter the password in the Verify Password text box. Click OK. 6. In the User/Rights Security dialogue box, enter D:\ as the root directory in the Home Directory text box, see Figure 3-5.
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Figure 3-5 User/Rights Security Dialogue Box
7. Click Done. The configuration is completed.
3.3 Backing Up Configuration Files To save system operation configurations, you can save the current system configurations to configuration files or upload the configuration files to the configured FTP/SFTP server.
Context During the configuration file saving procedure, the CLI and SNMP operations on the system can be performed only after configuration files are saved. The file write procedure takes a long period.
Steps 1. Run the write command. 2. Run the copy ftp/copy sftp command to upload the configuration files. Note Because FTP has potential risk in file transferring, it is recommended to use SFTP to download and upload files.
Verification The information saved in a configuration file can be verified in one of the following modes:
Enter a command to display the contents of the configuration file, or compare the sizes of the files saved on the FTP/SFTP server and Flash.
Open the configuration file saved on the FTP/SFTP server by using the text editor to check the file or verify that the files saved on the FTP/SFTP server and Flash have the same size.
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Example 1. Save the configuration data. ZXAN#write .Write DB OK! Building configuration... ............[OK].
2. Copy the db.dat file to the directory of the SFTP user named zte on the host 168.1.1.1 from the flash memory datadisk0 directory. ZXAN#copy sftp root: /datadisk0/db.dat //168.1.1.1/db.dat@zte:zte
3.4 Managing NE Configuration Data Backup Tasks NMS supports configuring and executing NE configuration data backup tasks. After the tasks are configured, the NMS automatically executes the tasks and backs up the NE configuration data to the NMS server. In case of data loss, the configuration data uploaded to the NMS server can be used for restoration. There are three default configuration data backup tasks for the OLT, MDU and MSAN devices. Users can execute these default tasks, modify the task parameters, query the task execution status, or configure new tasks.
Context It is recommended to execute the task to back up the NE configuration data at 00:00:00 once a day.
Steps 1. In the NetNumen U31 Unified Management System – Client window, choose Maintenance > Task Management > Show Timing Task. The Task Management view is displayed, see Figure 3-6.
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Figure 3-6 Task Management View
2. In the left navigation tree, choose Task Management > Access Network Task > Data Configuration Backup Task. The configuration data backup tasks are displayed on the right, see Figure 3-7. Figure 3-7 Configuration Data Backup Tasks
3. In this window, you can perform the following operations. To 3-6
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a. Select and right-click one task, and then choose Execute instantly.
b. A confirmation dialogue box appears, click Yes to execute the task immediately. Suspend one task
a. Select and right-click one activated task, and then choose Suspend Task.
b. A confirmation dialogue box appears, click Yes to suspend the task immediately. Activate one task
a. Select and right-click one suspended task, and then choose Activate Task.
b. A confirmation dialogue box appears, click Yes to activate the task immediately. Query the log information of one task
a. Select and right-click one task, and then choose Query Log. The Query Log window appears, see Figure 3-8. The Query Log window shows the task execution information, including the operation start time and end time.
b. (Optional) click Refresh to get the latest log information. Modify the parameters of one task
a. Select and right-click one suspend task, and then choose Modify Task to open the Modify Task window.
b. Modify the task status according to the request, see Figure 3-9. After the modification, click Next.
c. Modify the plan type, execution time, and duration, see Figure 3-10. After the modification, click Next.
d. Modify the NE type and the period to keep the configuration files, see Figure 3-11. After the modification, click Finish. Create a new task
a. Click
on the toolbar to display the
Create Task dialogue box.
b. Configure the task name, task status, condition template, and action template, see Figure 3-12. After the configuration, click Next.
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c. Configure the plan type, execution time, and duration, see Figure 3-13. After the configuration, click Next.
d. Configure the NE type and the period to keep the configuration files, see Figure 3-14. After the configuration, click Finish.
Figure 3-8 Query Log Window
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Figure 3-9 Modifying the Basic Information
Figure 3-10 Modifying the Time Conditions
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Figure 3-11 Modifying the Execution Conditions
Figure 3-12 Configuring the Basic Information
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Figure 3-13 Configuring the Time Conditions
Figure 3-14 Configuring the Execution Conditions
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3.5 Backing up or Restoring the Configuration Data This procedure describes how to back up and restore the configuration data.
Steps 1. In the topology view of NetNumen U31 Unified Management System-Client window, right-click the NE and then select NE File Management > Backup/Restore NE Configuration Data to open the Backup/Restore NE Configuration File window, see Figure 3-15. Figure 3-15 Backup/Restore Configuration File Window
2. In the Backup/Restore NE Configuration File window, you can perform the following operations. To
Do This
Back up the NE configuration data to the
a. On the Backup to NMS tab, configure the
specified directory of the NMS
file backup directory.
b. Select the files that need to be backed up, and then click Start. The Backup Status column shows whether the configuration files are backed up successfully.
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a. On the Backup to NMS tab, click Batch Backup to NMS to open the Batch Backup Configuration Data window.
b. Select the NEs on the Specify NE tab, and then click Start. The Backup Status column shows whether the configuration files are backed up successfully. Download the NMS backup data to the NE and restore the NE configuration data
a. On the Restore to NE tab, and select the NMS directory where the data to be restored is located.
b. (Optional) Click Select NE to select the NE which the configuration data will be downloaded to.
c. Click Start to start to download the file to NE. The Restore Status column shows whether the configuration files are downloaded successfully. Back up the NE configuration data to the specified directory of the NMS client
a. On the Backup to NMS Client tab, click Browse to select the file backup directory.
b. Select the files that need to be backed up, and then click Start. The Backup Status column shows that the configuration files are backed up successfully. Download the backup data from NMS client to the NE and restore the NE configuration data
a. On the Restore to NE from NMS Client tab, Click Browse to select the configuration files to be downloaded to NE.
b. Click Start to start to download the files to NE. The Restore Status column shows whether the configuration files are downloaded successfully.
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Chapter 4
Restoration Table of Contents Restoration Policies....................................................................................................... 4-1 Restoration Flow............................................................................................................ 4-1 Restoring System Configurations.................................................................................. 4-2
4.1 Restoration Policies To perform restoration, abide by the following policies:
CAUTION Perform restoration under the guide of ZTE technical support engineers to avoid fatal errors. For restoration scenarios and the corresponding restoration policies, refer to Table 4-1. Table 4-1 Restoration Scenarios and Policies Restoration Scenario
Restoration Policy
The device is damaged.
1. Replace the device. 2. Re-download and operate the system operation software.
3. Restore the configuration. Configuration
Any non-fatal loss of OS files (for example,
data is
upgrade failure and improper file deletion lead the file correctness.
damaged or
to loss of service configuration files.)
lost.
Logical data is damaged, for example, users'
Restore the lost files before verifying
Restore the configurations.
improper operations delete some key terminal user data.
4.2 Restoration Flow For the restoration flow, see Figure 4-1. SJ-20200929135033-014 | 2020-09-30 (R1.1)
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Figure 4-1 Restoration Flow
4.3 Restoring System Configurations In the device operation procedure, if system operation boards are replaced due to hardware failures or configurations are lost due to software failures, you must perform some operations to re-configure the devices properly. Through configuration restoration, proper device configurations are restored and devices continue operating properly.
Prerequisite Before restoring configuration files, ensure that the system software operates properly. After an FTP/SFTP server is configured for the system, the system can interconnect with the FTP/SFTP server through a network.
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Context During the configuration restoration procedure, services on NEs may be interrupted and configurations are re-configured. Before saving the existing configurations, distribute the configurations onto external servers. Before configuration restoration, check whether the key services of the configuration files to be loaded are properly configured. Make sure that the new configuration files are normal and system configurations can be properly restored.
Steps 1. Set the FTP/SFTP server. 2. Copy the loaded configuration files to the local Flash through the FTP/SFTP server. 3. Restart the device and load the system by using the new configuration files.
Note Because FTP has potential risk in file transferring, it is recommended to use SFTP to download and upload files.
Verification After NE configurations are reloaded, you can run the show running-config command to check whether the configurations for key services are proper.
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Glossary FTP - File Transfer Protocol MDU - Multiple Dwelling Unit MSAN - Multi-Service Access Node NMS - Network Management System OLT - Optical Line Terminal
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