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From Alex Huang <Alex.Hu...@citrix.com>
Subject RE: Expanding a volume on a SAN
Date Wed, 10 Jul 2013 23:22:29 GMT
Cool....i like that even better.  :)

--Alex

> -----Original Message-----
> From: Anthony Xu [mailto:Xuefei.Xu@citrix.com]
> Sent: Wednesday, July 10, 2013 4:17 PM
> To: dev@cloudstack.apache.org
> Subject: RE: Expanding a volume on a SAN
> 
> If you put the primary storage in maintenance mode to evacuate the VM,
> when you cancel maintenance mode for the primary storage, CS will get the
> new size of the primary storage.
> 
> 
> Anthony
> 
> -----Original Message-----
> From: Alex Huang [mailto:Alex.Huang@citrix.com]
> Sent: Wednesday, July 10, 2013 4:07 PM
> To: dev@cloudstack.apache.org
> Subject: RE: Expanding a volume on a SAN
> 
> ah sorry.  Yes.  From the CloudStack management UI, you can force
> cloudstack to reconnect to the host.  This forces cloudstack to flush it's
> connection and restablish the connection.  On restablishing the connection,
> there's a series of checks and information gathered.  Size of the storage pool
> is one such information.
> 
> --Alex
> 
> > -----Original Message-----
> > From: Mike Tutkowski [mailto:mike.tutkowski@solidfire.com]
> > Sent: Wednesday, July 10, 2013 3:13 PM
> > To: dev@cloudstack.apache.org
> > Subject: Re: Expanding a volume on a SAN
> >
> > Hey Alex,
> >
> > When you say, "force a reconnection," I'm not sure to what part of the
> > system you're referring. Is this an action performed on the CloudStack side?
> >
> > Thanks!
> >
> >
> > On Wed, Jul 10, 2013 at 4:10 PM, Alex Huang <Alex.Huang@citrix.com>
> wrote:
> >
> > > You might have to force a reconnection to the xenserver in order for
> > > CS to see it.  On every connection, CS checks these items and
> > > updates its database.
> > >
> > > --Alex
> > >
> > > > -----Original Message-----
> > > > From: Mike Tutkowski [mailto:mike.tutkowski@solidfire.com]
> > > > Sent: Wednesday, July 10, 2013 2:14 PM
> > > > To: dev@cloudstack.apache.org
> > > > Subject: Re: Expanding a volume on a SAN
> > > >
> > > > OK, great - thanks!
> > > >
> > > > So, it sounds like on XenServer, you have to perform some manual
> > > > activity for it to see the new size of the iSCSI target (and there
> > > > is probably a
> > > similar
> > > > requirement with ESX), but CloudStack will notice the size
> > > > difference automatically (once the storage repository or datastore
> > > > has been manually re-configured).
> > > >
> > > >
> > > > On Wed, Jul 10, 2013 at 2:48 PM, Anthony Xu <Xuefei.Xu@citrix.com>
> > > wrote:
> > > >
> > > > > CS will see the new size,
> > > > >
> > > > >
> > > > > Anthony
> > > > >
> > > > > -----Original Message-----
> > > > > From: Mike Tutkowski [mailto:mike.tutkowski@solidfire.com]
> > > > > Sent: Tuesday, July 09, 2013 5:25 PM
> > > > > To: dev@cloudstack.apache.org
> > > > > Subject: Re: Expanding a volume on a SAN
> > > > >
> > > > > Hey Anthony,
> > > > >
> > > > > I assume this would be a candidate situation where you'd put the
> > > > > primary storage in maintenance mode and then perform the steps
> > > > > you
> > > > referred me to?
> > > > >
> > > > > When the storage is brought out of maintenance mode, will it see
> > > > > the new size or is there something more that has to be done on
> > > > > the CS
> > side?
> > > > >
> > > > > Thanks!
> > > > >
> > > > >
> > > > > On Tue, Jul 9, 2013 at 6:09 PM, Mike Tutkowski <
> > > > > mike.tutkowski@solidfire.com
> > > > > > wrote:
> > > > >
> > > > > > Thanks!
> > > > > >
> > > > > > Anyone know if CloudStack will recognize the new size of a
> > > > > > storage repository or datastore on its own?
> > > > > >
> > > > > >
> > > > > > On Tue, Jul 9, 2013 at 4:01 PM, Anthony Xu
> > > > > > <Xuefei.Xu@citrix.com>
> > > > wrote:
> > > > > >
> > > > > >> http://support.citrix.com/article/CTX120865
> > > > > >>
> > > > > >> for XenServer, VMs need to be shut down or migrated away
> > > > > >> before expanding a volume.
> > > > > >>
> > > > > >>
> > > > > >> Anthony
> > > > > >>
> > > > > >> -----Original Message-----
> > > > > >> From: Mike Tutkowski [mailto:mike.tutkowski@solidfire.com]
> > > > > >> Sent: Tuesday, July 09, 2013 2:25 PM
> > > > > >> To: dev@cloudstack.apache.org
> > > > > >> Cc: Edison Su; John Burwell
> > > > > >> Subject: Expanding a volume on a SAN
> > > > > >>
> > > > > >> Hi everyone,
> > > > > >>
> > > > > >> I had a question posed to me today regarding how CloudStack
> > > > > >> and the underlying hypervisor deal with an iSCSI volume
that
> > > > > >> is
> > expanded.
> > > > > >>
> > > > > >> For example, let's say I'm using XenServer or ESX and I
> > > > > >> create a storage repository or datastore, respectively,
for
> > > > > >> each hypervisor based on an iSCSI target. I then tie this
> > > > > >> into CloudStack as Primary
> > > > > Storage.
> > > > > >>
> > > > > >> If I increase the size of the iSCSI target (the SAN
> > > > > >> volume/LUN), does this increased size feed into the
> > > > > >> hypervisor and
> > CloudStack?
> > > > > >>
> > > > > >> Thanks!
> > > > > >>
> > > > > >> --
> > > > > >> *Mike Tutkowski*
> > > > > >> *Senior CloudStack Developer, SolidFire Inc.*
> > > > > >> e: mike.tutkowski@solidfire.com
> > > > > >> o: 303.746.7302
> > > > > >> Advancing the way the world uses the
> > > > > >> cloud<http://solidfire.com/solution/overview/?video=play>
> > > > > >> *(tm)*
> > > > > >>
> > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > *Mike Tutkowski*
> > > > > > *Senior CloudStack Developer, SolidFire Inc.*
> > > > > > e: mike.tutkowski@solidfire.com
> > > > > > o: 303.746.7302
> > > > > > Advancing the way the world uses the
> > > > > > cloud<http://solidfire.com/solution/overview/?video=play>
> > > > > > *(tm)*
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > *Mike Tutkowski*
> > > > > *Senior CloudStack Developer, SolidFire Inc.*
> > > > > e: mike.tutkowski@solidfire.com
> > > > > o: 303.746.7302
> > > > > Advancing the way the world uses the
> > > > > cloud<http://solidfire.com/solution/overview/?video=play>
> > > > > *(tm)*
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > *Mike Tutkowski*
> > > > *Senior CloudStack Developer, SolidFire Inc.*
> > > > e: mike.tutkowski@solidfire.com
> > > > o: 303.746.7302
> > > > Advancing the way the world uses the
> > > > cloud<http://solidfire.com/solution/overview/?video=play>
> > > > *(tm)*
> > >
> >
> >
> >
> > --
> > *Mike Tutkowski*
> > *Senior CloudStack Developer, SolidFire Inc.*
> > e: mike.tutkowski@solidfire.com
> > o: 303.746.7302
> > Advancing the way the world uses the
> > cloud<http://solidfire.com/solution/overview/?video=play>
> > *(tm)*

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