When running Connect:Direct for UNIX with an S3 object store be aware of the following limitations:
  • EC2 instance is static, not elastic.
  • The ability to support CDU/S3 direct access from on-prem nodes is not present in this release.
  • File transfers via cloud are not supported by Run Task/Job or other areas that specify a filename.
  • The partSize is limited to 100 MB only. So, the user can configure partSize as any value ranging from 5 MB to 100 MB.
  • Maximum file size which can be transferred to S3 is 5TB.
  • The user should consider cost associated with the usage of cloud resources.
  • S3 does not support the option MOD (modify) for files that are transferred via Connect:Direct. Only NEW or RPL(replace) is supported. Wildcard Copy is not supported over cloud.
  • If there are multiple versions of the same file present in S3 bucket then only the latest version can be downloaded and not any previous version.
  • To enable Multipart upload, set ckpt parameter value to 0. Checkpoint restart can be explicitly configured within a copy step through the ckpt parameter. If it is not configured in the copy step, it can be configured in the Initparms through the ckpt.interval parameter. For more information see, Connect:Direct for UNIX Getting Started Guide