Bug 674767 - New Verb for discovering if luns were connected correctly
Summary: New Verb for discovering if luns were connected correctly
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: vdsm
Version: 6.3
Hardware: Unspecified
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Dan Kenigsberg
QA Contact: yeylon@redhat.com
URL:
Whiteboard:
Depends On:
Blocks: 671139
TreeView+ depends on / blocked
 
Reported: 2011-02-03 09:07 UTC by mkublin
Modified: 2016-04-18 06:38 UTC (History)
7 users (show)

Fixed In Version: vdsm-4.9-49
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-08-19 15:12:02 UTC
Target Upstream Version:

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Description mkublin 2011-02-03 09:07:10 UTC 
Description of problem:

At time of extend some ISCSI domain the backend need a new verb from the side of vdsm in order to retrieve if the connections of luns was successes.

1)Today we are using GetDeviceInfo for each lun in order to refresh it at vds side and recognized if it was connected correct. Obvious it is not performance efficient.

2)The using of GetDeviceList is also has a performance problems - it is the size of message which is send back from vds to backend - we actually receive information about all connected devices, the message can be big.

The desired API:
We will send to vdsm a list of luns ids and receive back map of lun id and its status.
Comment 2 David Naori 2011-02-20 20:54:12 UTC 
Verified on vdsm-4.9-49

vdsClient -s 0 getDevicesVisibility 1Net-2-50G,1Net-2-50G,1Net-3-50G,1Net-4-50G,1error3-12g,1IET_00150001,1Net-1-50G,1error5-12g

        1error3-12g = True
        1Net-4-50G = False
        1IET_00150001 = True
        1Net-2-50G = True
        1Net-1-50G = True
        1error5-12g = True
        1Net-3-50G = False
Note You need to log in before you can comment on or make changes to this bug.