Bug 170552 - (rhel4dmloadbal) kernel dm multipath: Dynamic Load balancing
kernel dm multipath: Dynamic Load balancing
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
medium Severity medium
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: ---
Assigned To: Alasdair Kergon
Bill Peck
: FutureFeature
: 180435 184134 (view as bug list)
Depends On: 245197
Blocks: 176344 185133 200229 232471 232479 245198
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Reported: 2005-10-12 16:03 EDT by Issue Tracker
Modified: 2010-10-21 23:32 EDT (History)
18 users (show)

See Also:
Fixed In Version:
Doc Type: Enhancement
Doc Text:
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Clone Of:
Last Closed: 2007-09-07 17:03:53 EDT
Type: ---
Regression: ---
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Issue Tracker 2005-10-12 16:03:50 EDT
Escalated to Bugzilla from IssueTracker
Comment 1 Rob Kenna 2005-10-12 16:06:13 EDT
This is an improvement on round-robin where loading of the paths is used to
dynamically balance I/O's
Comment 4 Alasdair Kergon 2005-10-21 10:07:44 EDT
A short patch has been submitted by Stefan Bader which does this.

It needs reviewing, checking for adverse interaction with iostats patches,
checking for performance issues when the feature is not being used, might have
kABI impact etc.

Possible for U3 subject to review.
Comment 6 Alasdair Kergon 2005-12-09 10:05:29 EST
Missed U3 so now U4.
Comment 9 Alasdair Kergon 2006-03-03 13:22:43 EST
*** Bug 180435 has been marked as a duplicate of this bug. ***
Comment 10 Alasdair Kergon 2006-03-06 14:46:18 EST
*** Bug 184134 has been marked as a duplicate of this bug. ***
Comment 14 David Lawrence 2006-04-18 16:09:19 EDT
NEEDINFO_ENG has been deprecated in favor of NEEDINFO or ASSIGNED. Changing
status to ASSIGNED for ENG review.
Comment 17 Rob Kenna 2006-07-20 14:12:49 EDT
I think this needs to be targeted for 5.1
Comment 19 Daniel Riek 2006-08-11 14:30:18 EDT
At least it is not a 4.5 topic. Moving to 4.6 for now. Not sure if we shouldn't
jsut keep that to 5?
Comment 20 Rob Kenna 2007-03-20 11:39:53 EDT
This consistently arises as a customer request.  Still worth having in 4.6
Comment 23 Larry Troan 2007-07-15 14:50:23 EDT
Scoping work effort. Holding off devel ACK until complete.
Comment 24 Peter Martuccelli 2007-07-31 10:35:19 EDT
Too late for R4.6, moving out to R4.7.
Comment 26 Rob Kenna 2007-07-31 11:22:01 EDT
Moving to RHEL 5.2
Comment 27 Larry Troan 2007-08-16 15:13:17 EDT

Rob, the bugzilla for this function in RHEL5 is bug 199767. If this only being
considered for RHEL5, just close this bug as WONTFIX and take up the discussion
in  the other bug...
Comment 28 Sharon Lightcap 2007-08-27 11:35:55 EDT
Can someone at Red Hat please clarify which releases are being considered for  
addressing this problem? This is important for us to know for this Bugzilla
(170552) and also 199767.
Comment 29 Andrius Benokraitis 2007-08-27 13:50:04 EDT
Resetting for 4.7 consideration, as it already states in the Version field,
unless Rob you have other comments.
Comment 30 Issue Tracker 2007-08-29 13:15:38 EDT
Unisys is giving up on getting changes into RHEL4 in favor of focusing on

Internal Status set to 'Resolved'
Status set to: Closed by Client
Resolution set to: 'Rejected'

This event sent from IssueTracker by dwa 
 issue 98463
Comment 31 Rob Kenna 2007-09-07 17:03:53 EDT
Moved to RHEL 5.2 as bug 199767. Closed WONTFIX

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