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The S3 Backup Restore Tool is the standalone utility for performing DR from the S3 backup bucket, either to the original cluster or to an empty cluster that is meant to replace the original. See S3 Backup Feeds.

Once the data is backed up in S3, the restore tool allows both examining a backup and control how, what, and where it is restored:

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Section

Settings

[s3] 

  • host — The hostname of the S3 service.

  • port — The port to use for the S3 service. Use 443 or else 80, if SSL (sslOption) is disabled.

  • accessKeyID — The S3 access key ID.

  • secretAccessKey — The S3 secret access key.

  • bucketName — The name of the destination bucket in S3.

  • sslOption — The S3 connection constraint, with one of two values:

    • "trusted" (the default) specifies use of SSL and requires a trusted server certificate from the destination server.

    • “none” disables use of SSL. Use for testing and troubleshooting, and change the port to 80.

[s3]

archival

Set these additional parameters if using an S3 bucket with an archival storage class (Glacier, Glacier Deep Archive):

  • performArchiveRetrieval — Whether restoration from archival storage is needed. Performing a restore does not incur any expenses for the bucket owner if false (default), .

  • retrievalTier — Which S3 Glacier retrieval tier to use for restoration: ‘Standard' (default), 'Expedited', or 'Bulk'. Each tier has its own cost and expected restoration time; see Amazon S3 Storage Classes.

  • accountID — Specifies the 9-digit AWS account ID of the bucket owner, granting the tool permission to incur archive restoration expenses at the tier requested. This setting appears in the x-amz-expected-bucket-owner header on the restore object request.

  • activeLifetimeDays — How many days an object restored from archive should remain active before expiring (returning to archival storage). The default is 7 (1 week).

[forwardProxy] 

This section is for use with an optional forward proxy:

  • host — The forward proxy hostname or IP address.

  • port — The forward proxy host to use.

  • username — (optional) The user name.

  • password — (optional) The password.

[log] 

The same log settings as the Swarm cluster may be used; identify the logs by looking for those with the component "RESTORE" if done so.

  • host — The log host. Leave blank to disable logging.

  • port — (optional) The log port. Defaults to 514.

  • file — (optional) The log filename. Accepts the value of “stdout” for logging to the console screen. Defaults to /dev/null.

  • level — The log level. Defaults to 30 (Warning). Levels are the same used by Swarm: 20 (Info), 15 (Audit), 10 (Debug).

[swarm] 

  • host — A list of host names or IP addresses of Swarm nodes or Gateway nodes.

  • port — (optional) The SCSP port. Defaults to 80.

  • user — The cluster administrator user name, usually "admin".

  • password — The cluster administrator password.

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Enumeration and selection are handled by the ls command, which is modeled after the Linux command ls and whose results are captured with standard Linux stdout. Use the command to visualize what domains and buckets have been are backed up in S3 and are available to be restored. The output is sorted by name and interactively paginated to help manage large result sets by default.

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  • current — The object was not restored because the target cluster already has the same version of the object.

  • older — The object was not restored because it is older than the one in the target cluster.

  • obsolete — The object was not restored because the cluster does not allow the object to be written. Usually , it means the object has been is deleted.

  • needed — The object needs restoration, but the -n option was used.

  • restored — The object was successfully restored.

  • nocontext — The object cannot be restored because its parent domain or bucket cannot be restored.

  • failure — The object cannot be restored. Consult the logs for details.

  • archived — The object is archived and the restore tool is not configured for archive restoration. This is a failure condition.

  • initiated — The object is archived and the tool has issued an object restoration request. See the Amazon S3 API RestoreObject Request Syntax. This is also a failure condition, but the object is counted in the archive retrieval initiated stats. It is these operations that incur expense to the bucket owner by the restore tool.

  • ongoing — The object is in archive and a restoration request has already been initiated. Restoration from archive is in progress. This is also a failure condition.

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