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    • Illumina® DRAGEN™ ORA Decompression Software Family
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    • DRAGEN ORA Decompression v2.7
      • Software Installation
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      • Commands
        • Combine with downstream analysis
        • Check Losslessness
    • DRAGEN ORA Helper Suite v2.0
      • Remote and Local Usage
      • Installation Software and References
      • Commands for the ORA Helper Suite software
      • Commands for Interleaved fastq.ora files
      • Handling of fastq.ora files compressed with reference other than default human reference
      • Troubleshooting
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  1. Product Guides
  2. DRAGEN ORA Decompression v2.7
  3. Commands

Check Losslessness

DRAGEN ORA Compression is a lossless compression.

If you wish to verify that no data was lost during the compression of the fastq.ora file, compare the MD5 checksum of the decompressed fastq.ora file and the MD5 checksum of the decompressed fastq.gz file.

1. Compute the md5 checksum of the uncompressed FASTQ.ORA content as follows

md5sum <(orad myfile.fastq.ora --raw -c )

2. Compute the md5 checksum of the uncompressed FASTQ.GZ content as follows

md5sum <(gzip -d -c myfile.fastq.gz)

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Last updated 10 months ago

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