Re: Using VMware as the Hypervisor

2012-05-15 Thread Mani Shafa'atDoost
There are a bunch of images in the system and when you request to load an
image from VCL website, it save your request in the database. and then in
the management node, it checks for new request and copy the requested image
to another place and change the VMX file and then call ESXI to register the
Image.

Best Regards
Mani

On Tue, May 15, 2012 at 2:50 PM, Sanders, Arbin D asand...@nccu.edu wrote:

 I hope this isn’t a stupid question, but how does VMware hypervisor know
 which image to load? Is the image just sitting there waiting to be used or
 does it load it from the image repository?

 ** **

 *Arbin Darren Sanders*

  

 IT Manager – Academic Computing

 North Carolina Central University

 712 Cecil Street

 Suite 3014

 Durham, NC 27707

 919.530.6307

 919.530.5097 (Fax)

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RE: Using VMware as the Hypervisor

2012-05-15 Thread Sanders, Arbin D
Thanks!

Arbin Darren Sanders
 
IT Manager - Academic Computing
North Carolina Central University
712 Cecil Street
Suite 3014
Durham, NC 27707
919.530.6307
919.530.5097 (Fax)

For the Latest ITS Updates and Tips Join Us Online 
 
CONFIDENTIALITY: This email (including any attachments) may contain 
confidential, proprietary and privileged information, and unauthorized 
disclosure or use is prohibited. If you received this email in error, please 
notify the sender and delete this e-mail from your system.


-Original Message-
From: Mani Shafa'atDoost [mailto:mani.do...@gmail.com] 
Sent: Tuesday, May 15, 2012 3:21 PM
To: vcl-dev@incubator.apache.org
Subject: Re: Using VMware as the Hypervisor

There are a bunch of images in the system and when you request to load an image 
from VCL website, it save your request in the database. and then in the 
management node, it checks for new request and copy the requested image to 
another place and change the VMX file and then call ESXI to register the Image.

Best Regards
Mani

On Tue, May 15, 2012 at 2:50 PM, Sanders, Arbin D asand...@nccu.edu wrote:

 I hope this isn't a stupid question, but how does VMware hypervisor 
 know which image to load? Is the image just sitting there waiting to 
 be used or does it load it from the image repository?

 ** **

 *Arbin Darren Sanders*

  

 IT Manager - Academic Computing

 North Carolina Central University

 712 Cecil Street

 Suite 3014

 Durham, NC 27707

 919.530.6307

 919.530.5097 (Fax)

 ** **

 *For the Latest ITS Updates and Tips Join Us Online** **   **[image:
 Description: Description: Description: Description:
 cid:image003.png@01CB6AD0.97665900]*http://www.facebook.com/profile.php?id=66100342#%21/pages/Durham-NC/NCCU-Eagle-Technical-Assistance-Center-ETAC/249508718552?v=info
 * *[image: Description: Description: Description: Description:
 cid:image004.png@01CB6AD0.97665900] http://twitter.com/NCCUETAC

  

 CONFIDENTIALITY: This email (including any attachments) may contain 
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Re: Using VMware as the Hypervisor

2012-05-15 Thread Dmitri Chebotarov
Arbin,

VCL is using non-persistent disks for all reservations. 
There is nothing to copy/load during reservation since all ESXi hosts use 
shared storage for all VM Images (Data Store Path: this has to be on shared 
datastore). 
Then you have a 2nd datastore where ESXi keeps deltas for running images (VM 
Path: this can be local or shared datastore).

During reservation, VCL will 1st check if there is an available computer with 
the image requested. 
If there is one then it will be used for current reservation (this when you see 
load times  1 min on GUI).
If there is no image available then VCL will create new VM (create .vmx file 
and upload to ESXi host and register it). The new VM will use non-persistent 
disk(s), so no .vmdk copied.
This process takes time needed to create VM and start it on ESXi host.

When you create new image or update existing image VCL will copy .vmdk files, 
which sometime takes considerable amount of time. 


--
Thank you,

Dmitri Chebotarov
Virtual Computing Lab Systems Engineer, TSD - Ent Servers  Messaging
223 Aquia Building, Ffx, MSN: 1B5
Phone: (703) 993-6175
Fax: (703) 993-3404


On Tuesday, May 15, 2012 at 15:45 , Sanders, Arbin D wrote:

 Thanks!
 
 Arbin Darren Sanders
  
 IT Manager - Academic Computing
 North Carolina Central University
 712 Cecil Street
 Suite 3014
 Durham, NC 27707
 919.530.6307
 919.530.5097 (Fax)
 
 For the Latest ITS Updates and Tips Join Us Online 
  
 CONFIDENTIALITY: This email (including any attachments) may contain 
 confidential, proprietary and privileged information, and unauthorized 
 disclosure or use is prohibited. If you received this email in error, please 
 notify the sender and delete this e-mail from your system.
 
 
 -Original Message-
 From: Mani Shafa'atDoost [mailto:mani.do...@gmail.com] 
 Sent: Tuesday, May 15, 2012 3:21 PM
 To: vcl-dev@incubator.apache.org (mailto:vcl-dev@incubator.apache.org)
 Subject: Re: Using VMware as the Hypervisor
 
 There are a bunch of images in the system and when you request to load an 
 image from VCL website, it save your request in the database. and then in the 
 management node, it checks for new request and copy the requested image to 
 another place and change the VMX file and then call ESXI to register the 
 Image.
 
 Best Regards
 Mani
 
 On Tue, May 15, 2012 at 2:50 PM, Sanders, Arbin D asand...@nccu.edu 
 (mailto:asand...@nccu.edu) wrote:
 
  I hope this isn't a stupid question, but how does VMware hypervisor 
  know which image to load? Is the image just sitting there waiting to 
  be used or does it load it from the image repository?
  
  ** **
  
  *Arbin Darren Sanders*
  
  
  
  IT Manager - Academic Computing
  
  North Carolina Central University
  
  712 Cecil Street
  
  Suite 3014
  
  Durham, NC 27707
  
  919.530.6307
  
  919.530.5097 (Fax)
  
  ** **
  
  *For the Latest ITS Updates and Tips Join Us Online** ** **[image:
  Description: Description: Description: Description:
  cid:image003.png@01CB6AD0.97665900]*http://www.facebook.com/profile.php?id=66100342#%21/pages/Durham-NC/NCCU-Eagle-Technical-Assistance-Center-ETAC/249508718552?v=info
  * *[image: Description: Description: Description: Description:
  cid:image004.png@01CB6AD0.97665900] http://twitter.com/NCCUETAC
  
  
  
  CONFIDENTIALITY: This email (including any attachments) may contain 
  confidential, proprietary and privileged information, and unauthorized 
  disclosure or use is prohibited. If you received this email in error, 
  please notify the sender and delete this e-mail from your system.
  
  ** **
  
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