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  1. Home
  2. NetBackup™ Deduplication Guide
  3. S3 Interface for MSDP
  4. S3 APIs for S3 interface for MSDP
  5. S3 APIs on Objects
  6. PutObject(snowball-auto-extract for small files)
NetBackup™ Deduplication Guide

PutObject(snowball-auto-extract for small files)

Each copy operation has some overhead; therefore, performing many transfers on individual small files has slower overall performance than transferring the same data in larger files. To significantly improve your transfer speed for small files (files less than 1 MB), batch the small files together. Batching files is a manual process. If the batched files are put to S3 server with the x-amz-meta-snowball-auto-extract header, the batches are automatically extracted when data is imported MSDP S3 Server.

Note:

The x-amz-meta-snowball-auto-extract header is not accepted for un-versioned bucket, and all the batched small files share the same version in S3 server.

Run the tar or gzip command to manually batch small files, and then transfer them to S3 interface for MSDP.

For example: tar -czf <archive-file> <small files or directory of small files>

aws --endpoint https://<hostname>:8443 --profile <profile name> s3api [--ca-bundle <CA_BUNDLE_FILE>] put-object --bucket <bucket name> --key <key path> --body <xxx.tgz> --metadata snowball-auto-extract=true

Keep in mind the following when batching small files:

  • Maximum batch size of 5 GB.

  • Recommended maximum of 10,000 files per batch.

  • Supported archive formats are TGZ.

Request Syntax

PUT /bucket/Key HTTP/1.1
Host: msdps3.server:8443
Content-Length: ContentLength
Content-MD5: ContentMD5
x-amz-meta-snowball-auto-extract:true
Body

Request Parameters

  • Bucket

    Name of the bucket.

    Required: Yes

    Type: String

  • Key

    Name of the object.

    Required: Yes

    Type: String

Request Headers

  • Enable snowball-auto-extract

    Required: Yes

    Value: true

Response Syntax

HTTP/1.1 200
ETag: ETag
x-amz-version-id: VersionId

Request Headers

  • x-amz-version-id

    The version-id of the object PUT in the bucket.

Possible Error Response

  • Success

    HTTP status code 200.

  • EntityTooLarge

    The object size exceeded maximum allowed size.

    HTTP status code 400.

  • AccessDenied

    Request was rejected because user authentication failed.

    HTTP status code 403.

  • NoSuchBucket

    The specified bucket does not exist.

    HTTP status code 404.

  • InternalError

    Request failed because of an internal server error.

    HTTP status code 500.

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