[Users] Export domain

--_000_9BE6F493F83A594DA60C45E6A09DC5AC23B815C0AUSP01DAG0201_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable What would happen if the export domain (via NFS) was extended (say, while t= he server was doing a reboot?) id like to extend the space of my export do= main from 200 to 500GB (with lvm commands). How will ovirt react to finding the size of the export domain changed? Ple= ased or unpleased? Thanks, jonathan ________________________________ This is a PRIVATE message. If you are not the intended recipient, please de= lete without copying and kindly advise us by e-mail of the mistake in deliv= ery. NOTE: Regardless of content, this e-mail shall not operate to bind SKO= POS to any order or other contract unless pursuant to explicit written agre= ement or government initiative expressly permitting the use of e-mail for s= uch purpose. --_000_9BE6F493F83A594DA60C45E6A09DC5AC23B815C0AUSP01DAG0201_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
<style> <!-- @font-face {font-family:Calibri} @font-face {font-family:Tahoma} p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri","sans-serif"} a:link, span.MsoHyperlink {color:blue; text-decoration:underline} a:visited, span.MsoHyperlinkFollowed {color:purple; text-decoration:underline} p.MsoAcetate, li.MsoAcetate, div.MsoAcetate {margin:0in; margin-bottom:.0001pt; font-size:8.0pt; font-family:"Tahoma","sans-serif"} span.EmailStyle17 {font-family:"Calibri","sans-serif"; color:windowtext} span.BalloonTextChar {font-family:"Tahoma","sans-serif"} .MsoChpDefault {font-family:"Calibri","sans-serif"} @page WordSection1 {margin:1.0in 1.0in 1.0in 1.0in} div.WordSection1 {} --> </style> </head> <body lang=3D"EN-US" link=3D"blue" vlink=3D"purple"> <div class=3D"WordSection1"> <p class=3D"MsoNormal">What would happen if the export domain (via NFS) was= extended (say, while the server was doing a reboot?) id like to exte= nd the space of my export domain from 200 to 500GB (with lvm commands).&nbs= p; </p> <p class=3D"MsoNormal"> </p> <p class=3D"MsoNormal">How will ovirt react to finding the size of the expo= rt domain changed? Pleased or unpleased?</p> <p class=3D"MsoNormal"> </p> <p class=3D"MsoNormal">Thanks,</p> <p class=3D"MsoNormal">jonathan</p> </div> <br> <hr> <font color=3D"Gray" face=3D"Arial" size=3D"1">This is a PRIVATE message. I= f you are not the intended recipient, please delete without copying and kin= dly advise us by e-mail of the mistake in delivery. NOTE: Regardless of con= tent, this e-mail shall not operate to bind SKOPOS to any order or other contract unless pursuant to explicit wri= tten agreement or government initiative expressly permitting the use of e-m= ail for such purpose.</font> </body> </html> --_000_9BE6F493F83A594DA60C45E6A09DC5AC23B815C0AUSP01DAG0201_--

ovirt should not react in any way :) the size should be updated by queries that are sent to vdsm on domains status. If you want to be extra careful you can always put the export domain in maintenance before the extend :) On 03/13/2013 09:45 PM, Jonathan Horne wrote:
What would happen if the export domain (via NFS) was extended (say, while the server was doing a reboot?) id like to extend the space of my export domain from 200 to 500GB (with lvm commands).
How will ovirt react to finding the size of the export domain changed? Pleased or unpleased?
Thanks,
jonathan
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_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Dafna Ron

Dafna Ron:
ovirt should not react in any way :) the size should be updated by queries that are sent to vdsm on domains status. I think vdsm domains do have their own meta-data except the lvm or posix file system meta data.
If you want to be extra careful you can always put the export domain in maintenance before the extend :) If the export domain come back to life, I think the domain meta data should be invalidated after the extend.
On 03/13/2013 09:45 PM, Jonathan Horne wrote:
What would happen if the export domain (via NFS) was extended (say, while the server was doing a reboot?) id like to extend the space of my export domain from 200 to 500GB (with lvm commands).
How will ovirt react to finding the size of the export domain changed? Pleased or unpleased?
Thanks,
jonathan
------------------------------------------------------------------------ This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind SKOPOS to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- --- 舒明 Shu Ming Open Virtualization Engineerning; CSTL, IBM Corp. Tel: 86-10-82451626 Tieline: 9051626 E-mail: shuming@cn.ibm.com or shuming@linux.vnet.ibm.com Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC

ovirt should not react in any way :) the size should be updated by queries that are sent to vdsm on domains status. I think vdsm domains do have their own meta-data except the lvm or
Dafna Ron: posix file system meta data.
On 03/14/2013 05:55 PM, Shu Ming wrote: the export domain is an NFS domain and the size is not listed in its metadata. much like posix which is based on file type storage, if we extend the size in the storage server itself the domain size will be updated with no issues or changed to the metadata. you are correct regarding iscsi domain types which would have a problem with extending a lun in the storage side. extend for iscsi is done via the ovirt by editing the domain and adding more luns since extend of the used lv on the storage side will cause issues in the metadata.
If you want to be extra careful you can always put the export domain in maintenance before the extend :) If the export domain come back to life, I think the domain meta data should be invalidated after the extend. since its not iscsi type domain the extend done on the server side to extend the domain should not be a problem
On 03/13/2013 09:45 PM, Jonathan Horne wrote:
What would happen if the export domain (via NFS) was extended (say, while the server was doing a reboot?) id like to extend the space of my export domain from 200 to 500GB (with lvm commands).
How will ovirt react to finding the size of the export domain changed? Pleased or unpleased?
Thanks,
jonathan
------------------------------------------------------------------------
This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind SKOPOS to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Dafna Ron

On 03/14/2013 05:55 PM, Shu Ming wrote:
Dafna Ron:
ovirt should not react in any way :) the size should be updated by queries that are sent to vdsm on domains status. I think vdsm domains do have their own meta-data except the lvm or posix file system meta data.
iirc, the MD no longer cares about SD size. so for block storage it is a matter of refreshing the hosts. but in any case, since export is NFS, i don't remember any issues with extending it.
If you want to be extra careful you can always put the export domain in maintenance before the extend :) If the export domain come back to life, I think the domain meta data should be invalidated after the extend.
On 03/13/2013 09:45 PM, Jonathan Horne wrote:
What would happen if the export domain (via NFS) was extended (say, while the server was doing a reboot?) id like to extend the space of my export domain from 200 to 500GB (with lvm commands).
How will ovirt react to finding the size of the export domain changed? Pleased or unpleased?
Thanks,
jonathan
------------------------------------------------------------------------ This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind SKOPOS to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

This is a multi-part message in MIME format. --------------030600030802060909040305 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit So you have a block device in NFS server to be extended from 200 to 50GB? I think you should extend both the block device and the file system on the block device in the server side. To oVirt, it doesn't save the size in storage domain' meta-data and I believe the size is only stored in the engine server. The only issue is before the engine refresh its metadata in the next time, there is a window with the meta-data out of sync. Please let us know if it is successful. Jonathan Horne:
What would happen if the export domain (via NFS) was extended (say, while the server was doing a reboot?) id like to extend the space of my export domain from 200 to 500GB (with lvm commands).
How will ovirt react to finding the size of the export domain changed? Pleased or unpleased?
Thanks,
jonathan
------------------------------------------------------------------------ This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind SKOPOS to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- --- ?? Shu Ming Open Virtualization Engineerning; CSTL, IBM Corp. Tel: 86-10-82451626 Tieline: 9051626 E-mail: shuming@cn.ibm.com or shuming@linux.vnet.ibm.com Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC --------------030600030802060909040305 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-cite-prefix">So you have a block device in NFS server to be extended from 200 to 50GB? I think you should extend both the block device and the file system on the block device in the server side. To oVirt, it doesn't save the size in storage domain' meta-data and I believe the size is only stored in the engine server. The only issue is before the engine refresh its metadata in the next time, there is a window with the meta-data out of sync. Please let us know if it is successful.<br> <br> Jonathan Horne:<br> </div> <blockquote cite="mid:9BE6F493F83A594DA60C45E6A09DC5AC23B815C0@AUSP01DAG0201" type="cite"> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <style> <!-- @font-face {font-family:Calibri} @font-face {font-family:Tahoma} p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri","sans-serif"} a:link, span.MsoHyperlink {color:blue; text-decoration:underline} a:visited, span.MsoHyperlinkFollowed {color:purple; text-decoration:underline} p.MsoAcetate, li.MsoAcetate, div.MsoAcetate {margin:0in; margin-bottom:.0001pt; font-size:8.0pt; font-family:"Tahoma","sans-serif"} span.EmailStyle17 {font-family:"Calibri","sans-serif"; color:windowtext} span.BalloonTextChar {font-family:"Tahoma","sans-serif"} .MsoChpDefault {font-family:"Calibri","sans-serif"} @page WordSection1 {margin:1.0in 1.0in 1.0in 1.0in} div.WordSection1 {} --> </style> <div class="WordSection1"> <p class="MsoNormal">What would happen if the export domain (via NFS) was extended (say, while the server was doing a reboot?) id like to extend the space of my export domain from 200 to 500GB (with lvm commands). </p> <p class="MsoNormal"> </p> <p class="MsoNormal">How will ovirt react to finding the size of the export domain changed? Pleased or unpleased?</p> <p class="MsoNormal"> </p> <p class="MsoNormal">Thanks,</p> <p class="MsoNormal">jonathan</p> </div> <br> <hr> <font size="1" color="Gray" face="Arial">This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind SKOPOS to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose.</font> <br> <fieldset class="mimeAttachmentHeader"></fieldset> <br> <pre wrap="">_______________________________________________ Users mailing list <a class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users@ovirt.org</a> <a class="moz-txt-link-freetext" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a> </pre> </blockquote> <br> <br> <pre class="moz-signature" cols="72">-- --- 舒明 Shu Ming Open Virtualization Engineerning; CSTL, IBM Corp. Tel: 86-10-82451626 Tieline: 9051626 E-mail: <a class="moz-txt-link-abbreviated" href="mailto:shuming@cn.ibm.com">shuming@cn.ibm.com</a> or <a class="moz-txt-link-abbreviated" href="mailto:shuming@linux.vnet.ibm.com">shuming@linux.vnet.ibm.com</a> Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC</pre> </body> </html> --------------030600030802060909040305--
participants (4)
-
Dafna Ron
-
Itamar Heim
-
Jonathan Horne
-
Shu Ming