Thanks, everyone! I was mainly curious about the "traditional" model (as opposed to the SolidFire plug-in) where multiple VMs and data disks share an iSCSI LUN (a customer asked about how LUN extension works).
On Wed, Jul 10, 2013 at 6:00 PM, Edison Su <edison...@citrix.com> wrote: > But, if the iscsi LUN is managed by solidfire's cloudstack plugin, then > the size of change need to be handled by solidfire: > 1. resize the LUN on solidfire's storage though the plugin. > 2. need to talk to xenserver hypervisor in your plugin, that the size of > LUN is changed. Make sure, the volume is detached from VM, unplug, then > plug pbd of that volume, xenserver should see the new size of the LUN. > 3. update volume size in cloudstack db table. > > > -----Original Message----- > > From: Alex Huang [mailto:alex.hu...@citrix.com] > > Sent: Wednesday, July 10, 2013 4:22 PM > > To: dev@cloudstack.apache.org > > Subject: RE: Expanding a volume on a SAN > > > > Cool....i like that even better. :) > > > > --Alex > > > > > -----Original Message----- > > > From: Anthony Xu [mailto:xuefei...@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.hu...@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.tutkow...@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.hu...@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.tutkow...@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...@citrix.com> > > > > > wrote: > > > > > > > > > > > > > CS will see the new size, > > > > > > > > > > > > > > > > > > > > > Anthony > > > > > > > > > > > > > > -----Original Message----- > > > > > > > From: Mike Tutkowski [mailto:mike.tutkow...@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.tutkow...@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...@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.tutkow...@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.tutkow...@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.tutkow...@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.tutkow...@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.tutkow...@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.tutkow...@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.tutkow...@solidfire.com o: 303.746.7302 Advancing the way the world uses the cloud<http://solidfire.com/solution/overview/?video=play> *™*
