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Documentation #2273

closed

basic reliability models

Added by Anonymous about 12 years ago. Updated over 4 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Category:
OSD
Target version:
-
% Done:

0%

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Reviewed:
Affected Versions:
Pull request ID:

Description

1. construct a probabilistic model for data loss in 1, 2, and 3 copy systems, assuming independent failures
2. plug in standard disk/ctlr/cpu/nic/unrecoverable read error rates
3. compute expected (not probability of) data loss
4. compare these with 2 and 3 copy raid mirroring, 5+1 parity, 5/7 erasure coding

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