2.6. Backup


2.6.1. Image Backup


2.6.1.1. Overview

Image Backup is a service that provides features to acquire and store Virtual Server images (called “Backup Images” below) and features to restore the Virtual Server from the stored backup images. *You can use Image Backup at a Data Center that provides Compute Resource, or Compute Resource (Dedicated Device).
Menu Japan North America Europe
JP US UK FR ES
Yokohama No.1 Data Center Kansai1 No.1 Data Center Saitama No.1 Data Center San Jose Lundy Data Center Hemel Hempstead2 Data Center

Paris2

Data Center

Madrid2

Data Center

Image Backup Yes Yes Yes N/A N/A N/A N/A

Menu APAC
SG HK MY TH

Serangoon

Data Center

Tai Po

Data Center

Cyberjaya3

Data Center

Bangna

Data Center

Image Backup N/A N/A N/A N/A
Table: Image Backup availability

2.6.1.2. Features

Customer can use the following features in Image Backup.
Backup and Restore A feature that acquires, stores and restores backup images for the purpose of backup. Backup images are stored in a storage device provided by the NTT Communcations. For restoration, backup images are directly overwritten on the Virtual Server.
Backup and Restore Management A feature that manages backup of the Virtual Server. It is possible to manage the schedule and check the history of backup and restore.

2.6.1.2.1.Backup a VM

A feature that acquires and stores backup images for the purpose of backup of the Virtual Server. Disk images for backup are acquired and stored in backup storage after the backup starts. Following are disks for backup.
  • All disks for the Virtual Server
Option
Menu
Target Disk Start Date(*1) Start Time Window(*2)
Retention Period
* Backup data will be deleted after the configured retention period
Spot All disks Backup process start date
0-1 UTC
1-2 UTC
2-3 UTC
3-4 UTC
4-5 UTC
5-6 UTC
6-7 UTC
7-8 UTC
8-9 UTC
9-10 UTC
10-11 UTC
11-12 UTC
12-13 UTC
13-14 UTC
14-15 UTC
15-16 UTC
16-17 UTC
17-18 UTC
18-19 UTC
19-20 UTC
20-21 UTC
21-22 UTC
22-23 UTC
23-24 UTC
7/31/366 days
Daily All disks Backup process start date
0-1 UTC
1-2 UTC
2-3 UTC
3-4 UTC
4-5 UTC
5-6 UTC
6-7 UTC
7-8 UTC
8-9 UTC
9-10 UTC
10-11 UTC
11-12 UTC
12-13 UTC
13-14 UTC
14-15 UTC
15-16 UTC
16-17 UTC
17-18 UTC
18-19 UTC
19-20 UTC
20-21 UTC
21-22 UTC
22-23 UTC
23-24 UTC
1/2/3/4/6/7/8days
Weekly All disks Backup process start date
0-1 UTC
1-2 UTC
2-3 UTC
3-4 UTC
4-5 UTC
5-6 UTC
6-7 UTC
7-8 UTC
8-9 UTC
9-10 UTC
10-11 UTC
11-12 UTC
12-13 UTC
13-14 UTC
14-15 UTC
15-16 UTC
16-17 UTC
17-18 UTC
18-19 UTC
19-20 UTC
20-21 UTC
21-22 UTC
22-23 UTC
23-24 UTC
7 days/14 days/21 days/28 days/35 days/ 42 days/ 49 days/56 days
Monthly All disks Backup process start date
0-1 UTC
1-2 UTC
2-3 UTC
3-4 UTC
4-5 UTC
5-6 UTC
6-7 UTC
7-8 UTC
8-9 UTC
9-10 UTC
10-11 UTC
11-12 UTC
12-13 UTC
13-14 UTC
14-15 UTC
15-16 UTC
16-17 UTC
17-18 UTC
18-19 UTC
19-20 UTC
20-21 UTC
21-22 UTC
22-23 UTC
23-24 UTC
31 days/62 days/ 93 days/ 124 days/155 days/186 days/217 days/248 days
Table : Option Menu List

  • Image Backup does not support Virtual Machines which is over 4,000GB for total disk capacity + the memory resource.
  • Multiple rules can be applied to a single VM
  • Billing starts from Start Date(*1)
  • The exact start hour cannot be select (only Time Window), so Customer are recommended to select a backup window that has the least business impact. Actual time that the backup finishes may exceed the selected time windows (*2)

2.6.1.2.2.Restore a VM

Backup image is overwritten on and restored from the Virtual Server from which backup is acquired. The Virtual Server is restored at the state of Power Off. The Virtual Server needs to be manually started.
The restored Virtual Server is restored with the following settings for vCPU, Memory, Disk and vNIC.
Item Description of Setting
vCPU Restores the configuration of the Virtual Server targeted for backup.
Memory Restores the configuration of the Virtual Server targeted for backup.
Disk Restores the configuration of the Virtual Server targeted for backup.
vNIC Restores the vNIC information of the Virtual Server targeted for backup (IP address, net mask, MAC address)

2.6.1.3. Restrictions

  • Backup Image Store
    Image backup supports following Guest OS.
    • Windows Server 2008 R2 Enterprise
    • Windows Server 2012 Standard
    • Windows Server 2012 R2 Standard
    • Windows Server 2016 Standard
    • Red Hat Enterprise Linux Server 5.8/6.2/6.5/6.7/7.1
    The backup image storage capacity is the size of the Disk of the Virtual Server targeted for backup. It is different from the data capacity written into the backup storage.
    • The Backup Image acquisition process is performed independently of whether the Virtual Server targeted for backup is powered on or off.
    During backups, the performance of the Disk I/O of the Virtual Server that is being backed up might be reduced.
    • The backup begins within the Time window you specify. The backup start time cannot be specified in units of minutes and seconds.
    • Backup cannot be configured in the last 5 miutes (55 minutes to 0 minute) of the 1-hour time slot for backup. (The alert message appears.)
    • If the number of backup jobs that are performed at the same time in each time slot exceeds the maximum value, we recommend using the closest available time slot within the backup will not be performed.
    • Disk of the target Virtual Server cannot be extended while performing the backp process.
    • To ensure consistency of the file system during backup, we recommend setting rest points, such as turning OFF the Virtual Server, and performing the backup.
    • If the target Virtual Server is restored during the backup, inconsistency in backup data may occur so do not perform the restore operation during the backup.
    • When restoring the backup, old root/Admin passwords used when performing the backup are enabled. Be careful not to forget old passwords because you cannot log in to the Virtual Server if you do not know these old passwords.

  • Backup Image Restore
  • For restore, backup image is overwritten on and restored from the Virtual Server from which backup is acquired.
  • It may take some time for Guest OS Customization at the initial start-up after the restore. Please start the operation after 15 minutes, once you have confirmed the status as “Successful” on the Backup Report for the Customer Portal or received the Restore Completion Mail (If the mail receive setting is valid) Restore operation cannot be performed if the target Virtual Server is deleted.
  • When disk of Virtual Server under operation is deleted after backup and the disk contract of Compute Resource is being reduced, please perform restoration after checking whether the amount of disks required for restoration is secured in Compute Resource.
  • Backup of Compute Resource (Dedicated Device)
Be careful with the following points when backing up the Virtual Server used by Compute Resource (Dedicated).
  • For the backup work area, 10% of the Storage Device that is used by Compute Resource (Dedicated Device) will be used.
  • During the backup, the performance of the Disk I/O of the Storage Device that is used by Compute Resource (Dedicated Device) may decrease temporarily.
Backup of the Compute Resource (Dedicated Device) may not be supported depending on usage of disk I/O so please contact us.
  • If the Virtual Server targeted for backup was using the OS license provided by NTT Communications, the overwritten restored license on the Virtual Server is equivalent to the OS License. Therefore, no OS license is added to the restored Virtual Server.
  • When changing the Guest OS network settings, do not disable a vNIC that has been recognized, even if you are not using that vNIC. If Vitual Servers with disabled vNIC are backup up and restored, failures might occur.
  • Configurable date and time slot are set on the Portal window according to the local time (configured timezone). However the system operated with the universal time coordinated (UTC) so that charging is processed with UTC. For Japan, backup process that takes a maximum of 9 hours is charged as the process for the previous day.
  • If the OS management service is used, you cannot use the Image Backup service.
Customer will not be charged in the event a backup or restore fails.
Customer will be billed based on the total logical disk size. This takes into account the amount of data that is contracted, not the actual amount of data that is being written to disk within the Enterprise Cloud Storage array. For example, if Customer selects 5 day retention period with 10GB logical disk size for a VM, Customer will be charged for 50GB of disk space for the 5 day period.
In the event the VM disk size is changed once a backup rule is implemented, Customer will be billed based on the revised VM disk size on the following backup.
Customer will be billed monthly for the sum of all successful backups that occur within that billing cycle. For example, if they select multiple backup rules for a VM, they shall be billed for all successful backups within the billing cycle.

2.6.2. File Backup


2.6.2.1. Overview

File Backup is a service that provides features to restore file or folders on the data disk of the Virtual Server (called “Backup file” below.)
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Menu Japan North America Europe
JP US UK FR ES
Yokohama No.1 Data Center Kansai1 No.1 Data Center Saitama No.1 Data Center San Jose Lundy Data Center Hemel Hempstead2 Data Center

Paris2

Data Center

Madrid2

Data Center

File Backup Yes N/A N/A N/A N/A N/A N/A

Menu APAC
SG HK MY TH

Serangoon

Data Center

Tai Po

Data Center

Cyberjaya3

Data Center

Bangna

Data Center

File Backup N/A N/A N/A N/A
Table : File Backup availability

2.6.2.2. Features

Function Outline Operation
Backup File Storage A feature for acquiring backup files from and storing backup files in the storage device (called”storage for backup”) provided by NTT Communciations. Customer Portal
Backup File Restore A feature for restoring the backup file.*This feature is available from the dedicated application, NetBackup Agent (called “NBU Agent” below), which is installed in the Virtual Server.
Dedicated Application
(Use Remote Control or RDP and SSH)
Backup and Restore Management A feature that manages backup. A feature for realizing management of files and folders targeted for backup, schedule management and history management. Customer Portal

2.6.2.2.1.Backup File Storage

Backup files are restored in backup storage at the time of start time. Backup file is stored in the storage for backup during the retention period specified by customer and the file is automatically deleted when the retention period expires.
  • Specifying Backup File
When specifying the backup file, Virtual Server needs to be selected and the path of the file or folder targeted for backup needs to be entered when configuring the backup job in the Customer Portal.
  • Encrypting Backup File
The backup file is automatically encrypted by using NBU Agent and the file is stored in the storage for backup. The encryption key needs to be generated again when restoring the backup file. In this case, the encryption key needs to be generated by using the same pass phrase as that of the original encryption key.

2.6.2.2.2.Backup File Restore

Backup file can be restored on the Virtual Server from which backup is acquired.
1. This function cannot be operated from the Customer Portal. This process can be executed from the NBU Agent installed on the Virtual Server.
2. Restore can be done on the Virtual Server from which backup is acquired. Be careful that no file can be restored if the target Virtual Server is deleted.
3. Restore can be done either on the same file (or folder) by overwriting or saving on a newly created file. However, overwriting is recommended in this service. If overwriting is selected, same amount of blank disk is needed to restore.

2.6.2.2.3.Backup and Restore Management

A feature for managing the schedule and job history relevant to file backup and restore and a feature for managing backup file are provided. After backup job is finished, result E-mail will be delivered.
  • Schedule Management Function
  • Virtual Server Management Function
  • Backup History
  • Restore management

2.6.2.3. Restrictions

  • About Applications for this Service
To use this service, you must provide information about ID/password with administrator right or root right for the Virtual Server containing file and folder targeted for file backup to NTT Communications. NTT Commynications use this information for installing and configuring NBU Agent. Be sure to delete ID or change password immediately after NBU Agent becomes available.
  • Recommended Environment
File backup supports following Guest OS license Virtual Server Templates provided by NTT Communications.
- Windows Server 2008 R2 Enterprise
- Windows Server 2012 Standard
- Red Hat Enterprise Linux Server 5.8/6.2
NTT Communications does not support the Guest OS described below.
  • Backup File Storage
The backup image storage capacity is the size of the file targeted for backup. It is different from the data capacity written into the backup storage.
When backup is acquired periodically, there might be a time period without the backup file due to the gap between the start time of next backup and retention period. In order to avoid this situation, one additional day will be added to the retention period with no charge.
  • Backup of Compute Resource (Dedicated Device)
Be careful with the following points when performing the file backup for the Virtual Server used by Compute Resource.
During the Backup, the performance of the Disk I/O of the Storage Device that is used by Compute Resource (Dedicated Device) may decrease temporarily.
Backup of Compute Resource (Dedicated Device) may not be supported depending on usage of disk I/O. In this case, please contact our Support Center.
  • Difference between the Setting Time and Chargeable Duration Duration due to Difference of Time Zone.- Configurable date and time slot are set on the Portal window according to the local time (configured time zone). However, fee is charged based on the universal time coordinated (UTC) in consideration of specifications of the service. For Japan, backup process that takes a maximum of 9 hours is charged as the process for the previous day due to a time difference. Network
Network options are available to allow Customer to take advantage of Enterprise Cloud global network coverage. This includes the following services.