uabrc / uabrc/uabrc.github.io

Inconsistent size/units between `proj-quota-report` and `s3cmd du` after Transfer from Cheaha to LTS

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#996 0 comments 0 reactions 1 assignee View on GitHub

@bdu-birhanu is already working on this.

Since Oct 21, 2025.

fix: inaccuracy ⚠️
Dominant language
Python
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Description

What is inaccurate?

A user transferred data from the Cheaha project directory to LTS. After the transfer has completed, the reported size differed between the project directory and the LTS bucket.

When running the following commands:

  • proj-quota-report <project> for the Cheaha project directory, it shows sizes in TB
  • s3cmd du -H s3://<bucket-name> for the LTS bucket, it shows sizes in T

In addition to the unit difference, the sizes themselves differ (21.66TB vs 20T), which leads to confusion when validating data transfers. This issue is likely due to a difference in unit representation (base-10, decimal,TB) vs (base-2 , binary, TiB).

@mdefende may add more.

Where is the inaccuracy?

https://docs.rc.uab.edu/data_management/cheaha_storage_gpfs/#how-much-space-do-i-have-left

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