Deduplication file check

Question

Hello, I wanted to ask you if you know of a way to check the health of the files that were deduplicated by the Data Domain DD2500 so we know that they are not corrupted. Thank you. Regards, Pablo

umichklewis · Accepted Answer

Sure - you can obtain a small amount of info about any file written to DD from the CLI.

Use 'filesys show file-info ' and 'filesys show compression ' :

sysadmin@dd860-bbc-mgmt# filesys show file-info /data/col1/cifs_sql/ABCSQL3/ABCSQL3_Parking_Full_201606160100.safe

Name /data/col1/cifs_sql/ABCSQL3/ABCSQL3_Parking_Full_201606160100.safe

Storage Unit Active

Status Ready

Diskgroups dg1,dg2,dg3,dg4,dg5

sysadmin@dd860-bbc-mgmt# filesys show compression /data/col1/cifs_sql/ABCSQL3/ABCSQL3_Parking_Full_201606160100.safe

Total files: 1; bytes/storage_used: 11.1

Original Bytes: 160,248,052

Globally Compressed: 14,191,772

Locally Compressed: 14,312,944

Meta-data: 60,344

Let us know if that helps!

Karl

umichklewis · Answer

The Data Domain handles file integrity at the block level as part of the process to write files and perform garbage collection. There is no user-facing command to check file integrity. You can, however, view details on a file from the CLI.

Let us know if that helps!

Karl

prglaz · Answer

Thank you for the information! Can you comment about those details on the CLI? do you refer to some specific check? Regards, Pablo

prglaz · Answer

Thank you very much!! Regards, Pablo

Data Domain

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