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Bug 293615 - sys-fs/multipath-tools-0.4.8-r2 rdac hangs IOs instead of failed when volumes are unmapped
Summary: sys-fs/multipath-tools-0.4.8-r2 rdac hangs IOs instead of failed when volumes...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: All Linux
: High major (vote)
Assignee: Gentoo's Team for Core System packages
URL:
Whiteboard: PATCH
Keywords:
Depends on:
Blocks:
 
Reported: 2009-11-18 12:09 UTC by David Ulrich
Modified: 2016-08-05 18:44 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description David Ulrich 2009-11-18 12:09:32 UTC
Testing the rdac failover mode, I notice that it should failed IO instead of hangs it when we unmapped volumes on a SAN.

Same bug as here : 
http://patchwork.kernel.org/patch/54943/

Reproducible: Always

Steps to Reproduce:
1. Mount a volume
2. Do IOs operation on it (cat /dev/urandom > test)
3. unmapped the volume on SAN

Actual Results:  
The process hangs instead of failed. Shell is not recoverable...
If we do Raid1 between 2 volumes, if one failed the IOs are hang... so it's impossible to use the second volumes.....

Expected Results:  
The volumes should be marked as failed and IOs too. So Raid1 will do the rest to recover from the situation.