Best practices for using cloud storage to archive data in Data Archive

Best practices for using cloud storage to archive data in Data Archive

EMC Centera and EMC Atmos

EMC Centera and EMC Atmos

You can archive data to EMC Centera and EMC Atmos cloud storage platforms.
When you archive data to EMC Centera or EMC Atmos, employ the following best practices:
  • Download Centera SDK version 3.3.718 or later.
  • To avoid network latency, use storage buckets that are created or stored in the same region as the client. If you experience communication errors between the Data Vault and external storage, ensure that the network latency is low for Data Vault to perform optimally.
  • On RHEL and SUSE Linux Enterprise machines, clear the cache memory periodically and when you perform operations such as running a report or browsing data.
  • Increase the MEMORY and MAXVEM values in the ssa.ini file depending on the size of the sct file on which you run the query. For information, see the Knowledge Base article.
  • Increase the ulimit values on RHEL and SUSE Linux Enterprise machines based on the workload. For example, the number of jobs running in parallel, or the number of open files.
  • When you retire an application with a large volume of data that includes LOB columns, perform extractor, loader, integrated validation, and retention policy in one job on a LOCAL/SAN/NAS/DAS/ network drive storage. When the job completes successfully, use the
    ssamigrate
    utility to migrate the archived data from the LOCAL/SAN/NAS/DAS/network drive storage to the cloud storage.
    See the
    Data Vault Administrator Guide
    for information on how to migrate archived data.
  • You can exclude LOB columns when you run a report. BLOB data appears BLANK and CLOB data is visible to a certain limit in JReports.
  • When you perform operations such as running a report query or browsing data for tables that contain huge data or LOB columns, ensure that no other operations are running in parallel.
  • For information about why a job fails or stops, see the fas logs and the agent logs in the following locations:
    <Data Vault installation directory>\fas_logs
    <Data Vault installation directory>\fas_agent_logs

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