Bug 1119660 - [RFE][RHEV] storage migration bandwidth limitation
Summary: [RFE][RHEV] storage migration bandwidth limitation
Keywords:
Status: NEW
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: 2019-04-14 12:45 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed:
oVirt Team: Storage
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.


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