Required. The expiration time of the backup.
When creating a backup or updating its expire_time, the value must be
greater than the backup creation time by:
At least 6 hours
At most 90 days
Once the expire_time has passed, Cloud Bigtable will delete the backup.
The time at which the hot backup will be converted to a standard backup.
Once the hot_to_standard_time has passed, Cloud Bigtable will convert the
hot backup to a standard backup. This value must be greater than the backup
creation time by:
At least 24 hours
This field only applies for hot backups. When creating or updating a
standard backup, attempting to set this field will fail the request.
A globally unique identifier for the backup which cannot be
changed. Values are of the form
projects/{project}/instances/{instance}/clusters/{cluster}/
backups/[_a-zA-Z0-9][-_.a-zA-Z0-9]*
The final segment of the name must be between 1 and 50 characters
in length.
The backup is stored in the cluster identified by the prefix of the backup
name of the form
projects/{project}/instances/{instance}/clusters/{cluster}.
Output only. Name of the backup from which this backup was copied. If a
backup is not created by copying a backup, this field will be empty. Values
are of the form:
projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>
Required. Immutable. Name of the table from which this backup was created.
This needs to be in the same instance as the backup. Values are of the form
projects/{project}/instances/{instance}/tables/{source_table}.
Output only. start_time is the time that the backup was started
(i.e. approximately the time the
[CreateBackup][google.bigtable.admin.v2.BigtableTableAdmin.CreateBackup]
request is received). The row data in this backup will be no older than
this timestamp.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08 UTC."],[[["\u003cp\u003eThe latest version available for the Google Cloud Bigtable Administration v2 API class Backup is 3.24.0.\u003c/p\u003e\n"],["\u003cp\u003eThis page provides documentation and code samples for the Backup class, which represents a backup of a Cloud Bigtable table.\u003c/p\u003e\n"],["\u003cp\u003eThe Backup class has properties like \u003ccode\u003eBackupName\u003c/code\u003e, \u003ccode\u003eBackupType\u003c/code\u003e, \u003ccode\u003eEncryptionInfo\u003c/code\u003e, \u003ccode\u003eEndTime\u003c/code\u003e, \u003ccode\u003eExpireTime\u003c/code\u003e, and more to describe backup attributes.\u003c/p\u003e\n"],["\u003cp\u003eThe Backup class supports the creation of hot and standard backups, with specific constraints on \u003ccode\u003eexpire_time\u003c/code\u003e and \u003ccode\u003ehot_to_standard_time\u003c/code\u003e values.\u003c/p\u003e\n"],["\u003cp\u003eThis webpage lists 31 versions of the backup class, ranging from version 2.4.0 up to 3.24.0.\u003c/p\u003e\n"]]],[],null,["# Google Cloud Bigtable Administration v2 API - Class Backup (3.29.0)\n\nVersion latestkeyboard_arrow_down\n\n- [3.29.0 (latest)](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/latest/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.28.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.28.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.27.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.27.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.26.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.26.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.25.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.25.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.24.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.24.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.23.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.23.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.22.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.22.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.21.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.21.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.20.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.20.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.19.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.19.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.18.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.18.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.17.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.17.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.16.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.16.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.15.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.15.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.14.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.14.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.13.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.13.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.12.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.12.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.11.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.11.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.10.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.10.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.9.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.9.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.8.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.8.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.7.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.7.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.6.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.6.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.5.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.5.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.4.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.4.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.3.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.3.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.2.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.2.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.1.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.1.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [3.0.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/3.0.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/2.9.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/2.8.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/2.7.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/2.6.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/2.5.0/Google.Cloud.Bigtable.Admin.V2.Backup)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/2.4.0/Google.Cloud.Bigtable.Admin.V2.Backup) \n\n public sealed class Backup : IMessage\u003cBackup\u003e, IEquatable\u003cBackup\u003e, IDeepCloneable\u003cBackup\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Google Cloud Bigtable Administration v2 API class Backup.\n\nA backup of a Cloud Bigtable table. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e Backup \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[Backup](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/latest/Google.Cloud.Bigtable.Admin.V2.Backup), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[Backup](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/latest/Google.Cloud.Bigtable.Admin.V2.Backup), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[Backup](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/latest/Google.Cloud.Bigtable.Admin.V2.Backup), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.Bigtable.Admin.V2](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/latest/Google.Cloud.Bigtable.Admin.V2)\n\nAssembly\n--------\n\nGoogle.Cloud.Bigtable.Admin.V2.dll\n\nConstructors\n------------\n\n### Backup()\n\n public Backup()\n\n### Backup(Backup)\n\n public Backup(Backup other)\n\nProperties\n----------\n\n### BackupName\n\n public BackupName BackupName { get; set; }\n\n[BackupName](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/latest/Google.Cloud.Bigtable.Admin.V2.BackupName)-typed view over the [Name](/dotnet/docs/reference/Google.Cloud.Bigtable.Admin.V2/latest/Google.Cloud.Bigtable.Admin.V2.Backup#Google_Cloud_Bigtable_Admin_V2_Backup_Name) resource name property.\n\n### BackupType\n\n public Backup.Types.BackupType BackupType { get; set; }\n\nIndicates the backup type of the backup.\n\n### EncryptionInfo\n\n public EncryptionInfo EncryptionInfo { get; set; }\n\nOutput only. The encryption information for the backup.\n\n### EndTime\n\n public Timestamp EndTime { get; set; }\n\nOutput only. `end_time` is the time that the backup was finished. The row\ndata in the backup will be no newer than this timestamp.\n\n### ExpireTime\n\n public Timestamp ExpireTime { get; set; }\n\nRequired. The expiration time of the backup.\nWhen creating a backup or updating its `expire_time`, the value must be\ngreater than the backup creation time by:\n\n- At least 6 hours\n- At most 90 days\n\nOnce the `expire_time` has passed, Cloud Bigtable will delete the backup.\n\n### HotToStandardTime\n\n public Timestamp HotToStandardTime { get; set; }\n\nThe time at which the hot backup will be converted to a standard backup.\nOnce the `hot_to_standard_time` has passed, Cloud Bigtable will convert the\nhot backup to a standard backup. This value must be greater than the backup\ncreation time by:\n\n- At least 24 hours\n\nThis field only applies for hot backups. When creating or updating a\nstandard backup, attempting to set this field will fail the request.\n\n### Name\n\n public string Name { get; set; }\n\nA globally unique identifier for the backup which cannot be\nchanged. Values are of the form\n`projects/{project}/instances/{instance}/clusters/{cluster}/\nbackups/[_a-zA-Z0-9][-_.a-zA-Z0-9]*`\nThe final segment of the name must be between 1 and 50 characters\nin length.\n\nThe backup is stored in the cluster identified by the prefix of the backup\nname of the form\n`projects/{project}/instances/{instance}/clusters/{cluster}`.\n\n### SizeBytes\n\n public long SizeBytes { get; set; }\n\nOutput only. Size of the backup in bytes.\n\n### SourceBackup\n\n public string SourceBackup { get; set; }\n\nOutput only. Name of the backup from which this backup was copied. If a\nbackup is not created by copying a backup, this field will be empty. Values\nare of the form:\nprojects/\\\u003cproject\\\u003e/instances/\\\u003cinstance\\\u003e/clusters/\\\u003ccluster\\\u003e/backups/\\\u003cbackup\\\u003e\n\n### SourceTable\n\n public string SourceTable { get; set; }\n\nRequired. Immutable. Name of the table from which this backup was created.\nThis needs to be in the same instance as the backup. Values are of the form\n`projects/{project}/instances/{instance}/tables/{source_table}`.\n\n### StartTime\n\n public Timestamp StartTime { get; set; }\n\nOutput only. `start_time` is the time that the backup was started\n(i.e. approximately the time the\n\\[CreateBackup\\]\\[google.bigtable.admin.v2.BigtableTableAdmin.CreateBackup\\]\nrequest is received). The row data in this backup will be no older than\nthis timestamp.\n\n### State\n\n public Backup.Types.State State { get; set; }\n\nOutput only. The current state of the backup."]]