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Re: Storage migration and XS VHD issue


Thank you for your suggestions, but how can I merge all the chain VHD if
the VM does not have any snapshot??

On Fri, Jul 20, 2018 at 10:20 AM Makrand <makrandsanap@xxxxxxxxx> wrote:

> Hi Al,
>
> With XenServer, its always issue with moving bigger volumes. (operation
> just times out)
>
> Here are the parameters that worked for me for bigger volume migrations in
> past. (You may want to tweak as per your env. may increase a bit. )
>
> migratewait: 36000
> storage.pool.max.waitseconds: 36000
> wait:18000
>
> *wait *is most critical of all . You need to change this in global config
> and this warrants management service restart.
>
>
> For the VHD chain read -  https://support.citrix.com/article/CTX201296.
> Understand this.
>
> First, remove all the unnecessary snaps of disks etc. You need click on
> scan (from xencenter) after you remove snap etc.
>
> Good luck
>
>
> --
> Makrand
>
>
> On Fri, Jul 20, 2018 at 1:12 PM, Alessandro Caviglione <
> c.alessandro@xxxxxxxxx> wrote:
>
> > Hi guys,
> > we need to move all the VM's disk from one storage to another.
> > Due to extremely slow performance of the source primary storage, migrate
> > VMs and DATA disks from cloudstack does not work because of timeout.
> > So, the alternative, is to move VHD files directly between the storage
> and
> > change Cloudstack DB... but I see that each VM has a loooong VHD chain
> and
> > CS DB point to the last one.
> > So... first question is: WHY?
> > Second question is: how can I consolidate all these files in a single
> one?
> >
> > vhd=88e504fa-08e8-4c82-abf6-1ebf8546ade2.vhd capacity=53687091200
> > size=18344002048 hidden=1 parent=none
> >    vhd=ecc7b0f1-63f1-4aac-9a69-39feb0db0b6e.vhd capacity=53687091200
> > size=3526001152 hidden=1 parent=88e504fa-08e8-4c82-abf6-1ebf8546ade2.vhd
> >       vhd=73353525-ef56-49db-bfdf-b4e87f668d40.vhd capacity=53687091200
> > size=147194368 hidden=1 parent=ecc7b0f1-63f1-4aac-9a69-39feb0db0b6e.vhd
> >          vhd=3c9c9803-dbd9-4993-98eb-78f9d5a9dd5a.vhd
> capacity=53687091200
> > size=701923840 hidden=1 parent=73353525-ef56-49db-bfdf-b4e87f668d40.vhd
> >             vhd=843874a3-6c2e-4e52-b3fd-f5cf6277d297.vhd
> > capacity=53687091200 size=73650688 hidden=1
> > parent=3c9c9803-dbd9-4993-98eb-78f9d5a9dd5a.vhd
> >                vhd=1abe6e83-09a8-4ee0-a2b7-270b47c7a461.vhd
> > capacity=53687091200 size=1235640832 hidden=1
> > parent=843874a3-6c2e-4e52-b3fd-f5cf6277d297.vhd
> >                   vhd=0cd07d92-d1d0-46f5-bc93-9f49bba72b74.vhd
> > capacity=53687091200 size=82055680 hidden=1
> > parent=1abe6e83-09a8-4ee0-a2b7-270b47c7a461.vhd
> >                      vhd=f038eae3-6912-4d52-a39e-276052dee777.vhd
> > capacity=53687091200 size=914149888 hidden=1
> > parent=0cd07d92-d1d0-46f5-bc93-9f49bba72b74.vhd
> >                         vhd=684abd94-f483-4721-9b1c-b8f82d6b7bd7.vhd
> > capacity=53687091200 size=84156928 hidden=1
> > parent=f038eae3-6912-4d52-a39e-276052dee777.vhd
> >                            vhd=e9e152e4-87bf-430d-8ec6-7f7b0f45c27a.vhd
> > capacity=53687091200 size=733442560 hidden=1
> > parent=684abd94-f483-4721-9b1c-b8f82d6b7bd7.vhd
> >
>  vhd=9c01a612-99f7-4ba7-800f-c3c3b9d4b268.vhd
> > capacity=53687091200 size=241750528 hidden=1
> > parent=e9e152e4-87bf-430d-8ec6-7f7b0f45c27a.vhd
> >
> >  vhd=74fb956e-1699-481e-8cba-f2a898c5eebf.vhd capacity=53687091200
> > size=752353792 hidden=1 parent=9c01a612-99f7-4ba7-800f-c3c3b9d4b268.vhd
> >
> > vhd=bbb7c296-db11-4989-87ba-ed2e1a0d6dab.vhd capacity=53687091200
> > size=105169408 hidden=1 parent=74fb956e-1699-481e-8cba-f2a898c5eebf.vhd
> >
> >  vhd=d38c45ea-2c3d-42b8-b804-0010e8be2e52.vhd capacity=53687091200
> > size=865821184 hidden=1 parent=bbb7c296-db11-4989-87ba-ed2e1a0d6dab.vhd
> >
> > vhd=1c61f78e-b526-4383-9783-a2f54dad4c53.vhd capacity=53687091200
> > size=96764416 hidden=1 parent=d38c45ea-2c3d-42b8-b804-0010e8be2e52.vhd
> >
> >  vhd=21d75884-4976-400c-92b3-eed01dcbfde5.vhd capacity=53687091200
> > size=1204122112 hidden=1 parent=1c61f78e-b526-4383-9783-a2f54dad4c53.vhd
> >
> > vhd=d9581bd3-c93d-4938-9e59-740fbaff8fb2.vhd capacity=53687091200
> > size=96764416 hidden=1 parent=21d75884-4976-400c-92b3-eed01dcbfde5.vhd
> >
> >  vhd=ba3a708b-932c-4024-9051-9fe30694b03b.vhd capacity=53687091200
> > size=912048640 hidden=1 parent=d9581bd3-c93d-4938-9e59-740fbaff8fb2.vhd
> >
> > vhd=6c75cb97-6f64-4699-a0d4-93f906401e72.vhd capacity=53687091200
> > size=98865664 hidden=1 parent=ba3a708b-932c-4024-9051-9fe30694b03b.vhd
> >
> >  vhd=41960a95-78f6-4e4f-9ec3-2c0d34e0b33f.vhd capacity=53687091200
> > size=815391232 hidden=1 parent=6c75cb97-6f64-4699-a0d4-93f906401e72.vhd
> >
> > vhd=e32e9562-6873-490c-bc03-ecc98dfc95a1.vhd capacity=53687091200
> > size=79954432 hidden=1 parent=41960a95-78f6-4e4f-9ec3-2c0d34e0b33f.vhd
> >
> >  vhd=dd160ab4-ff9a-4da5-a453-a55426393b04.vhd capacity=53687091200
> > size=836403712 hidden=1 parent=e32e9562-6873-490c-bc03-ecc98dfc95a1.vhd
> >
> > vhd=15f9de9c-2da7-469d-9b86-1ccf79064b09.vhd capacity=53687091200
> > size=82055680 hidden=1 parent=dd160ab4-ff9a-4da5-a453-a55426393b04.vhd
> >
> >  vhd=6e87a6c6-9e30-4202-b301-5846d6464241.vhd capacity=53687091200
> > size=899441152 hidden=1 parent=15f9de9c-2da7-469d-9b86-1ccf79064b09.vhd
> >
> > vhd=0743f4d0-cf96-4a5d-97d7-3f5451482eb0.vhd capacity=53687091200
> > size=90460672 hidden=1 parent=6e87a6c6-9e30-4202-b301-5846d6464241.vhd
> >
> >  vhd=09ad513b-2d1d-4878-bd30-12064a989b02.vhd capacity=53687091200
> > size=823796224 hidden=1 parent=0743f4d0-cf96-4a5d-97d7-3f5451482eb0.vhd
> >
> >   vhd=787efd1f-cad7-444c-a30d-8edcfcd2dbc6.vhd capacity=53687091200
> > size=105169408 hidden=1 parent=09ad513b-2d1d-4878-bd30-12064a989b02.vhd
> >
> >      vhd=1e9c643f-551a-425b-abba-e10d03ed7ca8.vhd capacity=53687091200
> > size=867922432 hidden=1 parent=787efd1f-cad7-444c-a30d-8edcfcd2dbc6.vhd
> >
> >         vhd=ffbdd502-4517-484a-b1d3-891e451145b0.vhd capacity=53687091200
> > size=979288576 hidden=1 parent=1e9c643f-551a-425b-abba-e10d03ed7ca8.vhd
> >
> >            vhd=5d5a3373-886b-427c-98bf-01f700cbd861.vhd
> > capacity=53687091200 size=1868116480 hidden=0
> > parent=ffbdd502-4517-484a-b1d3-891e451145b0.vhd
> >
>