THE FEUTEX TOOLKIT

RAID Rebuild Work Window

Estimate a rebuild duration and aggregate read traffic for full-member reconstruction.

Computer Systems workspace● Runs in your browser

01 Your input

Bytes to rebuildbytesMeasured effective target write ratebytes/sSource members read

02 Your result

View or copy raw result data

Result data

Formulatime=memberBytes/effectiveRate; reads=memberBytes×readers

Sources and model references

https://www.kernel.org/doc/html/latest/admin-guide/md.html

Worked example

Inputs

Bytes to rebuild: 1000000000000 bytes
Measured effective target write rate: 100000000 bytes/s
Source members read: 5

Expected results

Rebuild duration: 10000 s
Aggregate source bytes read: 5e+12 bytes
Aggregate source read rate: 500000000 bytes/s

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

Enter the labeled inputs in the indicated units.
Calculate and compare every output against the stated model assumptions.

Try this example

{
  "member": 1000000000000,
  "rate": 100000000,
  "readers": 5
}

Accuracy and scope

Full-member reconstruction model with supplied effective rate; foreground load and device errors excluded. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.