[Openstack] weird nova attach of a volume

2013-04-29 Thread Steve Heistand
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ok so I have a volume that Im trying to attach to an instance from
within horizon.  It always fails with the message of could not attach volume.

I try it via a nova CLI version and get messages about /dev/vdb is already in
use. I had tried to attach it to /dev/vdb.
I move up to vdc and same issue. I go up to vdd and all is well.
however it actually shows up in the instance as /dev/vdb.

so a) why is it thinking something is already using the devices when
they really arent in use.

b) related but not part of this problem: why is it ignoring the device
I give it to mount to and just pick then next available vd device?

thanks

(grizzly/ubunt 12.04 controllers/centos 6.4 VMs.)

steve

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 Steve Heistand  NASA Ames Research Center
 email: steve.heist...@nasa.gov  Steve Heistand/Mail Stop 258-6
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 Any opinions expressed are those of our alien overlords, not my own.

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Re: [Openstack] weird nova attach of a volume

2013-04-29 Thread Steve Heistand
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followup on this,
what I think is going on:
I have an image that I am tweaking and snapshot'ing.
the snapshot process remembers that a volume is attached to it
but doesnt attach the volume to it when you launch a new copy of
the snapshot.
ideally snapshot shouldnt save what volumes are currently attached to it.

filing bug.

s


On 04/29/2013 09:41 AM, Steve Heistand wrote:
 ok so I have a volume that Im trying to attach to an instance from within 
 horizon.
 It always fails with the message of could not attach volume.
 
 I try it via a nova CLI version and get messages about /dev/vdb is already in 
 use. I
 had tried to attach it to /dev/vdb. I move up to vdc and same issue. I go up 
 to vdd
 and all is well. however it actually shows up in the instance as /dev/vdb.
 
 so a) why is it thinking something is already using the devices when they 
 really
 arent in use.
 
 b) related but not part of this problem: why is it ignoring the device I give 
 it to
 mount to and just pick then next available vd device?
 
 thanks
 
 (grizzly/ubunt 12.04 controllers/centos 6.4 VMs.)
 
 steve
 
 
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- -- 

 Steve Heistand  NASA Ames Research Center
 email: steve.heist...@nasa.gov  Steve Heistand/Mail Stop 258-6
 ph: (650) 604-4369  Bldg. 258, Rm. 232-5
 Scientific  HPC ApplicationP.O. Box 1
 Development/OptimizationMoffett Field, CA 94035-0001

 Any opinions expressed are those of our alien overlords, not my own.

# For Remedy#
#Action: Resolve#   
#Resolution: Resolved   #
#Reason: No Further Action Required #
#Tier1: User Code   #
#Tier2: Other   #
#Tier3: Assistance  #
#Notification: None #
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