Bug 1287784 - When attaching a FC device, nova-compute will assign /dev/sd* even though there are 4 paths and a DM device
Summary: When attaching a FC device, nova-compute will assign /dev/sd* even though the...
Keywords:
Status: CLOSED DUPLICATE of bug 1273473
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: 7.0 (Kilo)
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: ---
: 7.0 (Kilo)
Assignee: Lee Yarwood
QA Contact: nlevinki
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-12-02 16:42 UTC by David Hill
Modified: 2023-09-14 03:14 UTC (History)
14 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-12-22 10:01:09 UTC
Target Upstream Version:
Embargoed:


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Description David Hill 2015-12-02 16:42:37 UTC
Description of problem:
When attaching a FC device, nova-compute will assign only one /dev/sd* device even though there are 4 paths (or more) and a DM-* device .  Shouldn't nova-compute leverage using a dm-* device instead of one of the underlying device ?  If that path fails, then the VM will lose the volume as if it was using dm-* instead, it would simply failover one of the 3 remaining paths.  When the volume is detached, it's only deleting one of the device instead of all device.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Create volume
2. Attach volume
3. Detach volume

Actual results:
Only one device is used/delete

Expected results:
The DM device is used/ only one device is deleted instead of 5

Additional info:

Comment 9 Red Hat Bugzilla 2023-09-14 03:14:14 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days


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