Bug 43909

Summary:	fsck of RAID devices isn't serialized
Product:	[Retired] Red Hat Linux	Reporter:	Alexandre Oliva <aoliva>
Component:	e2fsprogs	Assignee:	Florian La Roche <laroche>
Status:	CLOSED RAWHIDE	QA Contact:	Aaron Brown <abrown>
Severity:	low	Docs Contact:
Priority:	medium
Version:	7.1
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-06-07 21:49:24 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Alexandre Oliva 2001-06-07 21:49:22 UTC

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Description of problem:
fsck doesn't notice that RAID devices live on the same disks, and checks
them in parallel.

How reproducible:
Always

Steps to Reproduce:
1.Create multiple RAID devices, each using one partition from the same set
of disks.
2.Press the reset switch.
3.Note how it checks all RAID devices in parallel.
	

Actual Results:  fsck takes a long time to complete, and the disks' heads
move like crazy.

Expected Results:  RAID devices built off partitions in the same disks
should be serialized.

Additional info:

I've worked around the problem by using increasing fs_passno numbers.

Comment 1 Florian La Roche 2001-06-29 10:26:00 UTC

e2fsprogs-1.22 treat all md devices to be on the same harddisk, so at least
multiple raid devices don't get checked at the same time. So partial
solutions are implemented, the passno configuration should be used to
fix other setups.

Thanks,

Florian La Roche