Bug 1119660 - [RFE][RHEV] storage migration bandwidth limitation
Summary: [RFE][RHEV] storage migration bandwidth limitation
Keywords:
Status: CLOSED DEFERRED
Alias: None
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: RFEs
Version: 3.4.0
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
: ---
Assignee: Rob Young
QA Contact: Shai Revivo
URL:
Whiteboard:
Depends On: 1043226
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-07-15 09:01 UTC by Evgheni Dereveanchin
Modified: 2020-04-01 14:50 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-01 14:47:01 UTC
oVirt Team: Storage
Target Upstream Version:
Embargoed:
sherold: Triaged+


Attachments (Terms of Use)

Description Evgheni Dereveanchin 2014-07-15 09:01:08 UTC
Description of problem:
It is impossible to limit bandwidth used for storage migration tasks. This can cause storage network and SAN congestion issues preventing normal cluster operation

Version-Release number of selected component (if applicable):
vdsm-4.14.7-3.el6ev.x86_64

How reproducible:
always

Steps to Reproduce:
1. iSCSI SAN and all hosts connected over a 1 gbps link using dedicated storage network
2. start a storage migration

Actual results:
3. SPM saturates 1 gbps link on the SAN port
4. other hosts have problems reaching the SAN

Expected results:
3. bandwidth limit configured on SPM, it only uses that limit for storage migrations
4. other hosts in the cluster have no issues reaching the SAN

Additional info:
technology and link speed may vary. THe important point here is that storage migrations may saturate the SAN and negatively affect other hosts and VMs on them.

Comment 5 Michal Skrivanek 2020-03-19 15:40:41 UTC
We didn't get to this bug for more than 2 years, and it's not being considered for the upcoming 4.4. It's unlikely that it will ever be addressed so I'm suggesting to close it.
If you feel this needs to be addressed and want to work on it please remove cond nack and target accordingly.

Comment 6 Michal Skrivanek 2020-04-01 14:47:01 UTC
ok, closing. Please reopen if still relevant/you want to work on it.

Comment 7 Michal Skrivanek 2020-04-01 14:50:44 UTC
ok, closing. Please reopen if still relevant/you want to work on it.


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