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  1. Home
  2. NetBackup™ Deduplication Guide
  3. S3 Interface for MSDP
  4. Configuring S3 interface for MSDP on MSDP build-your-own (BYO) server
  5. Changing the ETAG type of the S3 objects
NetBackup™ Deduplication Guide

Changing the ETAG type of the S3 objects

MSDP S3 server returns an ETAG for each object put in the server. The default ETAG type is SHA256. You can change the ETAG type to MD5 if it is necessary for some S3 clients.

To change the ETAG type the S3 objects

  1. Open the S3 server configuration file <storage>/etc/puredisk/s3srv.cfg.
  2. Edit the value of EtagType.
    ; Etag type. Valid values are: SHA256, MD5, DOFP
    ; Note: MD5 cannot be used with FIPS mode
    ; Note: DOFP uses MSDP DO finger print as ETAG value. Use this value for best performance.
    ; @restart
    EtagType=SHA256
  3. Restart the S3 server.

    systemctl restart pdde-s3srv

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