From gervais at demontbrun.com Tue Dec 1 17:00:03 2015 Content-Type: multipart/mixed; boundary="===============0005333134137726170==" MIME-Version: 1.0 From: Gervais de Montbrun To: users at ovirt.org Subject: [ovirt-users] Setting up oVirt for the first time Date: Tue, 01 Dec 2015 17:59:59 -0400 Message-ID: <4BCDDB0B-6C13-487B-9AE9-557BA1F42348@demontbrun.com> --===============0005333134137726170== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable --Apple-Mail=3D_0375DE21-EDF5-4C87-B0F3-BC852CDA9E3B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=3Dus-ascii Hi All, I've done a lot of reading and lots of comparison of different =3D hypervisors and tools and have decided that oVirt would be the best =3D option. My initial use case is a not too new server that I will setup to = =3D run multiple development environments for the devs here, but I wanted =3D something that will scale out to production as the vm infrastructure, =3D hardware, etc. grows here. I'll soon have a second server to run my vm's on and want to setup a =3D self-hosted engine. I'm trying to find the most recent version of a =3D how-to on the same. I found a presentation showing off how much easier =3D it is to do this in oVirt 3.6 but can't find the correct docs. I seem to = =3D always end up with 3.5 or older versions. Can someone point me at a =3D how-to of how to best achieve this.=3D20 Also, while I have you all here... :-) Is it possible to setup the hypervisor hosts themselves as NFS servers =3D to create Storage (I realize that this will play havoc with the HA). We =3D do have an NFS server that we will be upgrading to add storage and =3D faster drives, but I was thinking that I may be able to use the internal = =3D storage of the hypervisors themselves as a short term stopgap and then =3D migrate vm's to the upgraded NFS server later. Will that even work, or =3D will it break somehow? Any advice for a new install would be welcome. Thank you=3D20 Cheers, Gervais --Apple-Mail=3D_0375DE21-EDF5-4C87-B0F3-BC852CDA9E3B Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=3Dus-ascii Hi All,

I've done a lot of reading and lots of comparison of =3D different hypervisors and tools and have decided that oVirt would be the = =3D best option. My initial use case is a not too new server that I will =3D setup to run multiple development environments for the devs here, but I =3D wanted something that will scale out to production as the vm =3D infrastructure, hardware, etc. grows here.

I'll soon have a second server to run = =3D my vm's on and want to setup a self-hosted engine. I'm trying to find =3D the most recent version of a how-to on the same. I found a presentation =3D showing off how much easier it is to do this in oVirt 3.6 but can't find = =3D the correct docs. I seem to always end up with 3.5 or older versions. =3D Can someone point me at a how-to of how to best achieve =3D this. 

Also, while I have you all here... :-)
= Is =3D it possible to setup the hypervisor hosts themselves as NFS servers to =3D create Storage (I realize that this will play havoc with the HA). We do =3D have an NFS server that we will be upgrading to add storage and faster =3D drives, but I was thinking that I may be able to use the internal =3D storage of the hypervisors themselves as a short term stopgap and then =3D migrate vm's to the upgraded NFS server later. Will that even work, or =3D will it break somehow?

Any advice for= =3D a new install would be welcome.

Thank you 

Cheers,
Gervais

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On Tue, Dec 1, 2015 at 10:59 PM, Gervais de Montbrun wrote: > Hi All, > > I've done a lot of reading and lots of comparison of different hypervisors > and tools and have decided that oVirt would be the best option. My initial > use case is a not too new server that I will setup to run multiple > development environments for the devs here, but I wanted something that > will scale out to production as the vm infrastructure, hardware, etc. gro= ws > here. > > I'll soon have a second server to run my vm's on and want to setup a > self-hosted engine. I'm trying to find the most recent version of a how-to > on the same. I found a presentation showing off how much easier it is to = do > this in oVirt 3.6 but can't find the correct docs. I seem to always end up > with 3.5 or older versions. Can someone point me at a how-to of how to be= st > achieve this. > http://www.ovirt.org/Features/HEApplianceFlow > Also, while I have you all here... :-) > Is it possible to setup the hypervisor hosts themselves as NFS servers to > create Storage (I realize that this will play havoc with the HA). We do > have an NFS server that we will be upgrading to add storage and faster > drives, but I was thinking that I may be able to use the internal storage > of the hypervisors themselves as a short term stopgap and then migrate vm= 's > to the upgraded NFS server later. Will that even work, or will it break > somehow? > What you are asking for is generally called hyper-convergence. We tried to have it for 3.6 with glusterfs on each node but it wasn't valuated stable enough to be released. We are still working on that for the next release. > Any advice for a new install would be welcome. > > Thank you > > Cheers, > Gervais > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > --===============6717543627088917136== Content-Type: text/html MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="attachment.html" PGRpdiBkaXI9Imx0ciI+PGJyPjxkaXYgY2xhc3M9ImdtYWlsX2V4dHJhIj48YnI+PGRpdiBjbGFz cz0iZ21haWxfcXVvdGUiPk9uIFR1ZSwgRGVjIDEsIDIwMTUgYXQgMTA6NTkgUE0sIEdlcnZhaXMg ZGUgTW9udGJydW4gPHNwYW4gZGlyPSJsdHIiPiZsdDs8YSBocmVmPSJtYWlsdG86Z2VydmFpc0Bk ZW1vbnRicnVuLmNvbSIgdGFyZ2V0PSJfYmxhbmsiPmdlcnZhaXNAZGVtb250YnJ1bi5jb208L2E+ Jmd0Ozwvc3Bhbj4gd3JvdGU6PGJyPjxibG9ja3F1b3RlIGNsYXNzPSJnbWFpbF9xdW90ZSIgc3R5 bGU9Im1hcmdpbjowcHggMHB4IDBweCAwLjhleDtib3JkZXItbGVmdC13aWR0aDoxcHg7Ym9yZGVy LWxlZnQtY29sb3I6cmdiKDIwNCwyMDQsMjA0KTtib3JkZXItbGVmdC1zdHlsZTpzb2xpZDtwYWRk 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text/plain; charset=3Dus-ascii Simone, Thanks so much for the quick reply with the link. Much obliged. How far off is hyper-convergence? If it is close, I could possibly wait. Cheers, Gervais > On Dec 1, 2015, at 6:47 PM, Simone Tiraboschi =3D wrote: >=3D20 >=3D20 >=3D20 > On Tue, Dec 1, 2015 at 10:59 PM, Gervais de Montbrun =3D > wrote: > Hi All, >=3D20 > I've done a lot of reading and lots of comparison of different =3D hypervisors and tools and have decided that oVirt would be the best =3D option. My initial use case is a not too new server that I will setup to = =3D run multiple development environments for the devs here, but I wanted =3D something that will scale out to production as the vm infrastructure, =3D hardware, etc. grows here. >=3D20 > I'll soon have a second server to run my vm's on and want to setup a =3D self-hosted engine. I'm trying to find the most recent version of a =3D how-to on the same. I found a presentation showing off how much easier =3D it is to do this in oVirt 3.6 but can't find the correct docs. I seem to = =3D always end up with 3.5 or older versions. Can someone point me at a =3D how-to of how to best achieve this. >=3D20 > http://www.ovirt.org/Features/HEApplianceFlow =3D > =3D20 > =3D20 > Also, while I have you all here... :-) > Is it possible to setup the hypervisor hosts themselves as NFS servers = =3D to create Storage (I realize that this will play havoc with the HA). We =3D do have an NFS server that we will be upgrading to add storage and =3D faster drives, but I was thinking that I may be able to use the internal = =3D storage of the hypervisors themselves as a short term stopgap and then =3D migrate vm's to the upgraded NFS server later. Will that even work, or =3D will it break somehow? >=3D20 > What you are asking for is generally called hyper-convergence. We =3D tried to have it for 3.6 with glusterfs on each node but it wasn't =3D valuated stable enough to be released. We are still working on that for = =3D the next release. > =3D20 > Any advice for a new install would be welcome. >=3D20 > Thank you=3D20 >=3D20 > Cheers, > Gervais >=3D20 >=3D20 > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users =3D >=3D20 >=3D20 --Apple-Mail=3D_1E8C93F2-E6A2-4E71-AF6F-60C2D12F4FA0 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=3Dus-ascii Simone,

Thanks so much for the quick reply with the link. Much =3D obliged.

Ho= w =3D far off is hyper-convergence? If it is close, I could possibly =3D wait.

Cheers,
Gervais

On Dec 1, 2015, at 6:47 PM, Simone Tiraboschi <stirabos(a)redhat.com<= /a>>=3D wrote:


On Tue, Dec 1, 2015 at 10:59 PM, = =3D Gervais de Montbrun <gervais(a)demontbrun.com> wrote:
Hi All,

I've done a lot of reading and lots of comparison of =3D different hypervisors and tools and have decided that oVirt would be the = =3D best option. My initial use case is a not too new server that I will =3D setup to run multiple development environments for the devs here, but I =3D wanted something that will scale out to production as the vm =3D infrastructure, hardware, etc. grows here.

I'll soon have a second server to run = =3D my vm's on and want to setup a self-hosted engine. I'm trying to find =3D the most recent version of a how-to on the same. I found a presentation =3D showing off how much easier it is to do this in oVirt 3.6 but can't find = =3D the correct docs. I seem to always end up with 3.5 or older versions. =3D Can someone point me at a how-to of how to best achieve this. =3D

http://www.ovirt.org/Features/HEApplianceFlow
 
 
Also, while I have y= ou =3D all here... :-)
Is it possible to setup the =3D hypervisor hosts themselves as NFS servers to create Storage (I realize =3D that this will play havoc with the HA). We do have an NFS server that we = =3D will be upgrading to add storage and faster drives, but I was thinking =3D that I may be able to use the internal storage of the hypervisors =3D themselves as a short term stopgap and then migrate vm's to the upgraded = =3D NFS server later. Will that even work, or will it break =3D somehow?

<= div=3D class=3D3D"">What you are asking for is generally called =3D hyper-convergence. We tried to have it for 3.6 with glusterfs on each =3D node but it wasn't valuated stable enough to  be released. We are =3D still working on that for the next release.
 
Any advice for a new insta= ll =3D would be welcome.

Thank you 

Cheers,
Gervais


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QXBwbGUtTWFpbD1fMUU4QzkzRjItRTZBMi00RTcxLUFGNkYtNjBDMkQxMkY0RkEwLS0K --===============6738936497384147470==-- From awels at redhat.com Wed Dec 2 09:10:56 2015 Content-Type: multipart/mixed; boundary="===============8870776335636849875==" MIME-Version: 1.0 From: Alexander Wels To: users at ovirt.org Subject: Re: [ovirt-users] Setting up oVirt for the first time Date: Wed, 02 Dec 2015 09:10:53 -0500 Message-ID: <2484481.W2Q6O94LHQ@awels> In-Reply-To: 4BCDDB0B-6C13-487B-9AE9-557BA1F42348@demontbrun.com --===============8870776335636849875== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Tuesday, December 01, 2015 05:59:59 PM Gervais de Montbrun wrote: > Hi All, > = > I've done a lot of reading and lots of comparison of different hypervisors > and tools and have decided that oVirt would be the best option. My initial > use case is a not too new server that I will setup to run multiple > development environments for the devs here, but I wanted something that > will scale out to production as the vm infrastructure, hardware, etc. gro= ws > here. > = > I'll soon have a second server to run my vm's on and want to setup a > self-hosted engine. I'm trying to find the most recent version of a how-to > on the same. I found a presentation showing off how much easier it is to = do > this in oVirt 3.6 but can't find the correct docs. I seem to always end up > with 3.5 or older versions. Can someone point me at a how-to of how to be= st > achieve this. > = > Also, while I have you all here... :-) > Is it possible to setup the hypervisor hosts themselves as NFS servers to > create Storage (I realize that this will play havoc with the HA). We do > have an NFS server that we will be upgrading to add storage and faster > drives, but I was thinking that I may be able to use the internal storage > of the hypervisors themselves as a short term stopgap and then migrate vm= 's > to the upgraded NFS server later. Will that even work, or will it break > somehow? > = I saw Simone gave you an answer about Gluster. Here is my DEVELOPMENT setup= , = which has been running for several years like this now. I have some VMs wit= h = uptime in the 100+ days. I am NOT doing the hosted engine since I develop s= tuff = for the engine and it makes no sense for me to have the hosted engine. Here= is = my setup, which is one option, I will outline some other options which migh= t = be more appropriate for what you are trying to do to: * Development engine machine. this runs just the engine. * 2x hosts, which both expose NFS shares for a data domain. * Each host can see the NFS share of the other host. * In my engine I have 2 data domains on one data center. One is the master = domain the other a secondary data domain. Pros of this setup: * I can use the storage on both my hosts for VMs. * I can live migrate VMs between hosts. * I can storage migrate VMs between data domains. * Its cheap and easy to setup Cons of this setup: * If any host goes down, the entire data center goes down since both hosts = need to see all the storage. (Well technically only the VMs that are on the = storage domain that went down will die and all the VMs on the host that wen= t = down). So this gives many points of failure for the entire thing to come = crashing down. This is fine for me since its my development environment and = nothing critical runs on it. * Its not always clear on which data domain you will want to create a VM bu= t = again for me its not much of an issue as this is a development environment. Here are some other possible setups, which I am not sure will work with hos= ted = engine as I believe that requires some kind of shared storage. IIRC it will = need some kind of shared storage, but it will be separate from the normal d= ata = domain. So lets assume you have hosted engine up and running and are lookin= g = at ways of using the storage on the host. Option 1: Create a local storage data center and add your hosts to that data center. Pros of this setup: * VMs are on local storage so should have decent IO. * If one host goes down it will not affect any of the other hosts. * Its cheap and easy to setup. Cons of this setup: * No live migration * No storage migration * Hard to migrate to a different storage solution later. Option 2: This is sort of a hybrid between my setup and option 1. Create several shar= ed = storage data centers, one for each host. Setup your NFS on each host. Add o= ne = host to each data center and use the NFS share as the data domain. Pros of this setup: * VMs are pretty much on local storage, there is some overhead of the NFS = share, but it still basically local. * If one host goes down it will not affect any of the other hosts. Cons of this setup: * No live migration * No storage migration * Hard to migrate to different storage solution later*. Given your situation with getting some fast NFS storage at a later point, w= hat = you can do if you take option2. Once you get the new storage, you can easil= y = add an import/export domain and export all your VMs to that storage. One yo= u = have all your VMs on the import/export domain, create a new data center, ad= d = your hosts, add your shiny new NFS as a data domain, also add the same = import/export domain, and import all the VMs into the new data domain. Note = this might also work for option 1 assuming you can attach import/export dom= ain = to a local storage data center (I have never tried so I don't know). In 3.5+ I think you can also simply add a new data center, add your hosts, = and = import the data domains from the other data centers (after you disconnected = them from there), then storage migrate the VMs. Its more or less the same a= s = above just a slightly different mechanism. Given all of this yes its possible, but not recommended for anything but = messing around with it. The recommended solution is to use shared storage = separate from your hosts. This gives you live migration and if one host goe= s = down it will not affect your other hosts. Of course if your storage goes do= wn, = you are screwed regardless, but you can use whatever redundancy mechanism y= ou = have available on the storage to mitigate that. = Alexander > Any advice for a new install would be welcome. > = > Thank you > = > Cheers, > Gervais --===============8870776335636849875==-- From lists at murrell.ca Thu Dec 3 02:23:05 2015 Content-Type: multipart/mixed; boundary="===============0551713008185254452==" MIME-Version: 1.0 From: Alan Murrell To: users at ovirt.org Subject: Re: [ovirt-users] Setting up oVirt for the first time Date: Wed, 02 Dec 2015 23:16:09 -0800 Message-ID: <565FEC39.4090900@murrell.ca> In-Reply-To: CAN8-ONofZQhrSKwkXF91L2uhUv43vai=Hjgm8M=1J56PEO15_A@mail.gmail.com --===============0551713008185254452== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 01/12/2015 2:47 PM, Simone Tiraboschi wrote: > What you are asking for is generally called hyper-convergence. We tried > to have it for 3.6 with glusterfs on each node but it wasn't valuated > stable enough to be released. We are still working on that for the next > release. In such a setup (GlusterFS running on 3+ nodes, sharing their storage), = is this also basically what VMware's "vSAN" is? It seems very similar, = at least. Regards, Alan --===============0551713008185254452==-- From stirabos at redhat.com Thu Dec 3 05:15:45 2015 Content-Type: multipart/mixed; boundary="===============4787285497465139103==" MIME-Version: 1.0 From: Simone Tiraboschi To: users at ovirt.org Subject: Re: [ovirt-users] Setting up oVirt for the first time Date: Thu, 03 Dec 2015 11:15:15 +0100 Message-ID: In-Reply-To: 565FEC39.4090900@murrell.ca --===============4787285497465139103== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Thu, Dec 3, 2015 at 8:16 AM, Alan Murrell wrote: > On 01/12/2015 2:47 PM, Simone Tiraboschi wrote: > > What you are asking for is generally called hyper-convergence. We tried >> to have it for 3.6 with glusterfs on each node but it wasn't valuated >> stable enough to be released. We are still working on that for the next >> release. >> > > In such a setup (GlusterFS running on 3+ nodes, sharing their storage), is > this also basically what VMware's "vSAN" is? It seems very similar, at > least. > Yes, the general architecture would be not that different. > > Regards, > > Alan > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > --===============4787285497465139103== Content-Type: text/html MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="attachment.html" PGRpdiBkaXI9Imx0ciI+PGJyPjxkaXYgY2xhc3M9ImdtYWlsX2V4dHJhIj48YnI+PGRpdiBjbGFz cz0iZ21haWxfcXVvdGUiPk9uIFRodSwgRGVjIDMsIDIwMTUgYXQgODoxNiBBTSwgQWxhbiBNdXJy ZWxsIDxzcGFuIGRpcj0ibHRyIj4mbHQ7PGEgaHJlZj0ibWFpbHRvOmxpc3RzQG11cnJlbGwuY2Ei IHRhcmdldD0iX2JsYW5rIj5saXN0c0BtdXJyZWxsLmNhPC9hPiZndDs8L3NwYW4+IHdyb3RlOjxi cj48YmxvY2txdW90ZSBjbGFzcz0iZ21haWxfcXVvdGUiIHN0eWxlPSJtYXJnaW46MCAwIDAgLjhl eDtib3JkZXItbGVmdDoxcHggI2NjYyBzb2xpZDtwYWRkaW5nLWxlZnQ6MWV4Ij48c3BhbiBjbGFz cz0iIj5PbiAwMS8xMi8yMDE1IDI6NDcgUE0sIFNpbW9uZSBUaXJhYm9zY2hpIHdyb3RlOjxicj4K PGJyPgo8YmxvY2txdW90ZSBjbGFzcz0iZ21haWxfcXVvdGUiIHN0eWxlPSJtYXJnaW46MCAwIDAg LjhleDtib3JkZXItbGVmdDoxcHggI2NjYyBzb2xpZDtwYWRkaW5nLWxlZnQ6MWV4Ij4KV2hhdCB5 b3UgYXJlIGFza2luZyBmb3IgaXMgZ2VuZXJhbGx5IGNhbGxlZCBoeXBlci1jb252ZXJnZW5jZS4g V2UgdHJpZWQ8YnI+CnRvIGhhdmUgaXQgZm9yIDMuNiB3aXRoIGdsdXN0ZXJmcyBvbiBlYWNoIG5v ZGUgYnV0IGl0IHdhc24mIzM5O3QgdmFsdWF0ZWQ8YnI+CnN0YWJsZSBlbm91Z2ggdG/CoCBiZSBy ZWxlYXNlZC4gV2UgYXJlIHN0aWxsIHdvcmtpbmcgb24gdGhhdCBmb3IgdGhlIG5leHQ8YnI+CnJl bGVhc2UuPGJyPgo8L2Jsb2NrcXVvdGU+Cjxicj48L3NwYW4+CkluIHN1Y2ggYSBzZXR1cCAoR2x1 c3RlckZTIHJ1bm5pbmcgb24gMysgbm9kZXMsIHNoYXJpbmcgdGhlaXIgc3RvcmFnZSksIGlzIHRo aXMgYWxzbyBiYXNpY2FsbHkgd2hhdCBWTXdhcmUmIzM5O3MgJnF1b3Q7dlNBTiZxdW90OyBpcz/C oCBJdCBzZWVtcyB2ZXJ5IHNpbWlsYXIsIGF0IGxlYXN0Ljxicj48L2Jsb2NrcXVvdGU+PGRpdj48 YnI+PC9kaXY+PGRpdj5ZZXMsIHRoZSBnZW5lcmFsIGFyY2hpdGVjdHVyZSB3b3VsZCBiZSBub3Qg dGhhdCBkaWZmZXJlbnQuPC9kaXY+PGRpdj7CoDwvZGl2PjxibG9ja3F1b3RlIGNsYXNzPSJnbWFp bF9xdW90ZSIgc3R5bGU9Im1hcmdpbjowIDAgMCAuOGV4O2JvcmRlci1sZWZ0OjFweCAjY2NjIHNv bGlkO3BhZGRpbmctbGVmdDoxZXgiPgo8YnI+ClJlZ2FyZHMsPGJyPgo8YnI+CkFsYW48ZGl2IGNs YXNzPSJIT0VuWmIiPjxkaXYgY2xhc3M9Img1Ij48YnI+Cjxicj4KX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX188YnI+ClVzZXJzIG1haWxpbmcgbGlzdDxicj4K PGEgaHJlZj0ibWFpbHRvOlVzZXJzQG92aXJ0Lm9yZyIgdGFyZ2V0PSJfYmxhbmsiPlVzZXJzQG92 aXJ0Lm9yZzwvYT48YnI+CjxhIGhyZWY9Imh0dHA6Ly9saXN0cy5vdmlydC5vcmcvbWFpbG1hbi9s aXN0aW5mby91c2VycyIgcmVsPSJub3JlZmVycmVyIiB0YXJnZXQ9Il9ibGFuayI+aHR0cDovL2xp c3RzLm92aXJ0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3VzZXJzPC9hPjxicj4KPC9kaXY+PC9kaXY+ PC9ibG9ja3F1b3RlPjwvZGl2Pjxicj48L2Rpdj48L2Rpdj4K --===============4787285497465139103==-- From nsoffer at redhat.com Thu Dec 3 16:21:26 2015 Content-Type: multipart/mixed; boundary="===============0143037389412274504==" MIME-Version: 1.0 From: Nir Soffer To: users at ovirt.org Subject: Re: [ovirt-users] Setting up oVirt for the first time Date: Thu, 03 Dec 2015 23:21:24 +0200 Message-ID: In-Reply-To: 4BCDDB0B-6C13-487B-9AE9-557BA1F42348@demontbrun.com --===============0143037389412274504== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Tue, Dec 1, 2015 at 11:59 PM, Gervais de Montbrun wrote: > Hi All, > > I've done a lot of reading and lots of comparison of different hypervisors > and tools and have decided that oVirt would be the best option. My initial > use case is a not too new server that I will setup to run multiple > development environments for the devs here, but I wanted something that w= ill > scale out to production as the vm infrastructure, hardware, etc. grows he= re. > > I'll soon have a second server to run my vm's on and want to setup a > self-hosted engine. I'm trying to find the most recent version of a how-to > on the same. I found a presentation showing off how much easier it is to = do > this in oVirt 3.6 but can't find the correct docs. I seem to always end up > with 3.5 or older versions. Can someone point me at a how-to of how to be= st > achieve this. > > Also, while I have you all here... :-) > Is it possible to setup the hypervisor hosts themselves as NFS servers to > create Storage (I realize that this will play havoc with the HA). We do h= ave > an NFS server that we will be upgrading to add storage and faster drives, > but I was thinking that I may be able to use the internal storage of the > hypervisors themselves as a short term stopgap and then migrate vm's to t= he > upgraded NFS server later. Will that even work, or will it break somehow? It is maybe not optimal, but it should work. Not sure if anyone is working with such setting, so you may have unique issues that nobody solved yet. Separating storage from the hypervisor will give you better performance and reliability, and a more standard configuration that will be easier to manage and support. You can move the storage later to another server and export the vms. Nir --===============0143037389412274504==-- From jvdwege at xs4all.nl Fri Dec 4 04:17:41 2015 Content-Type: multipart/mixed; boundary="===============1097428088598957995==" MIME-Version: 1.0 From: Joop To: users at ovirt.org Subject: Re: [ovirt-users] Setting up oVirt for the first time Date: Fri, 04 Dec 2015 10:17:28 +0100 Message-ID: <56615A28.10006@xs4all.nl> In-Reply-To: 4BCDDB0B-6C13-487B-9AE9-557BA1F42348@demontbrun.com --===============1097428088598957995== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------050902070100090107070201 Content-Type: text/plain; charset=3Dwindows-1252 Content-Transfer-Encoding: 7bit On 1-12-2015 22:59, Gervais de Montbrun wrote: > Is it possible to setup the hypervisor hosts themselves as NFS servers > to create Storage (I realize that this will play havoc with the HA). > We do have an NFS server that we will be upgrading to add storage and > faster drives, but I was thinking that I may be able to use the > internal storage of the hypervisors themselves as a short term stopgap > and then migrate vm's to the upgraded NFS server later. Will that even > work, or will it break somehow? As Nir pointed out its possible. I'm using such a setup at home where a NAS provides NFS storage for hosted-engine and also iso/export/data domains for VMs. Besides that I have an NFS server on my host for VMs which need a bit of disk throughput, its got a nice SSD in it. Moving VM disks from the SSD storage domain to the 'slow' storage domain on the NAS and vice versa works fine. Problem with these kind of setups is redundancy which is ofcourse non-existant :-) Regards, Joop --------------050902070100090107070201 Content-Type: text/html; charset=3Dwindows-1252 Content-Transfer-Encoding: 7bit
On 1-12-2015 22:59, Gervais de Montbrun wrote:
Is it possible to setup the hypervisor hosts themselves as NFS servers to create Storage (I realize that this will play havoc with the HA). We do have an NFS server that we will be upgrading to add storage and faster drives, but I was thinking that I may be able to use the internal storage of the hypervisors themselves as a short term stopgap and then migrate vm's to the upgraded NFS server later. Will that even work, or will it break somehow?
As Nir pointed out its possible.
I'm using such a setup at home where a NAS provides NFS storage for hosted-engine and also iso/export/data domains for VMs. Besides that I have an NFS server on my host for VMs which need a bit of disk throughput, its got a nice SSD in it. Moving VM disks from the SSD storage domain to the 'slow' storage domain on the NAS and vice versa works fine.
Problem with these kind of setups is redundancy which is ofcourse non-existant :-)

Regards,

Joop

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We do > have an NFS server that we will be upgrading to add storage and faster > drives, but I was thinking that I may be able to use the internal storage > of the hypervisors themselves as a short term stopgap and then migrate vm= 's > to the upgraded NFS server later. Will that even work, or will it break > somehow? > > As Nir pointed out its possible. > I'm using such a setup at home where a NAS provides NFS storage for > hosted-engine and also iso/export/data domains for VMs. Besides that I ha= ve > an NFS server on my host for VMs which need a bit of disk throughput, its > got a nice SSD in it. Moving VM disks from the SSD storage domain to the > 'slow' storage domain on the NAS and vice versa works fine. > Problem with these kind of setups is redundancy which is ofcourse > non-existant :-) > > Take care that up to and including RHEL 7 mounting exports provided by the localhost NFS-server can lead to deadlocks so it's not a recommended choice. A loopback iSCSI target should be more reliable on this side. http://linux-iscsi.org/wiki/Loopback > Regards, > > Joop > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > --===============3464486515559693082== Content-Type: text/html MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="attachment.html" PGRpdiBkaXI9Imx0ciI+PGJyPjxkaXYgY2xhc3M9ImdtYWlsX2V4dHJhIj48YnI+PGRpdiBjbGFz cz0iZ21haWxfcXVvdGUiPk9uIEZyaSwgRGVjIDQsIDIwMTUgYXQgMTA6MTcgQU0sIEpvb3AgPHNw YW4gZGlyPSJsdHIiPiZsdDs8YSBocmVmPSJtYWlsdG86anZkd2VnZUB4czRhbGwubmwiIHRhcmdl dD0iX2JsYW5rIj5qdmR3ZWdlQHhzNGFsbC5ubDwvYT4mZ3Q7PC9zcGFuPiB3cm90ZTo8YnI+PGJs b2NrcXVvdGUgY2xhc3M9ImdtYWlsX3F1b3RlIiBzdHlsZT0ibWFyZ2luOjBweCAwcHggMHB4IDAu OGV4O2JvcmRlci1sZWZ0LXdpZHRoOjFweDtib3JkZXItbGVmdC1jb2xvcjpyZ2IoMjA0LDIwNCwy MDQpO2JvcmRlci1sZWZ0LXN0eWxlOnNvbGlkO3BhZGRpbmctbGVmdDoxZXgiPgogIAogICAgCiAg CiAgPGRpdiBiZ2NvbG9yPSIjRkZGRkZGIiB0ZXh0PSIjMDAwMDAwIj48c3BhbiBjbGFzcz0iIj4K ICAgIDxkaXY+T24gMS0xMi0yMDE1IDIyOjU5LCBHZXJ2YWlzIGRlIE1vbnRicnVuCiAgICAgIHdy b3RlOjxicj4KICAgIDwvZGl2PgogICAgPGJsb2NrcXVvdGUgdHlwZT0iY2l0ZSI+CiAgICAgIAog ICAgICA8ZGl2PklzIGl0IHBvc3NpYmxlIHRvIHNldHVwIHRoZSBoeXBlcnZpc29yIGhvc3RzCiAg ICAgICAgdGhlbXNlbHZlcyBhcyBORlMgc2VydmVycyB0byBjcmVhdGUgU3RvcmFnZSAoSSByZWFs aXplIHRoYXQgdGhpcwogICAgICAgIHdpbGwgcGxheSBoYXZvYyB3aXRoIHRoZSBIQSkuIFdlIGRv IGhhdmUgYW4gTkZTIHNlcnZlciB0aGF0IHdlCiAgICAgICAgd2lsbCBiZSB1cGdyYWRpbmcgdG8g YWRkIHN0b3JhZ2UgYW5kIGZhc3RlciBkcml2ZXMsIGJ1dCBJIHdhcwogICAgICAgIHRoaW5raW5n IHRoYXQgSSBtYXkgYmUgYWJsZSB0byB1c2UgdGhlIGludGVybmFsIHN0b3JhZ2Ugb2YgdGhlCiAg ICAgICAgaHlwZXJ2aXNvcnMgdGhlbXNlbHZlcyBhcyBhIHNob3J0IHRlcm0gc3RvcGdhcCBhbmQg dGhlbiBtaWdyYXRlCiAgICAgICAgdm0mIzM5O3MgdG8gdGhlIHVwZ3JhZGVkIE5GUyBzZXJ2ZXIg bGF0ZXIuIFdpbGwgdGhhdCBldmVuIHdvcmssIG9yCiAgICAgICAgd2lsbCBpdCBicmVhayBzb21l aG93Pzxicj4KICAgICAgPC9kaXY+CiAgICA8L2Jsb2NrcXVvdGU+PC9zcGFuPgogICAgQXMgTmly IHBvaW50ZWQgb3V0IGl0cyBwb3NzaWJsZS48YnI+CiAgICBJJiMzOTttIHVzaW5nIHN1Y2ggYSBz ZXR1cCBhdCBob21lIHdoZXJlIGEgTkFTIHByb3ZpZGVzIE5GUyBzdG9yYWdlIGZvcgogICAgaG9z dGVkLWVuZ2luZSBhbmQgYWxzbyBpc28vZXhwb3J0L2RhdGEgZG9tYWlucyBmb3IgVk1zLiBCZXNp ZGVzIHRoYXQKICAgIEkgaGF2ZSBhbiBORlMgc2VydmVyIG9uIG15IGhvc3QgZm9yIFZNcyB3aGlj aCBuZWVkIGEgYml0IG9mIGRpc2sKICAgIHRocm91Z2hwdXQsIGl0cyBnb3QgYSBuaWNlIFNTRCBp biBpdC4gTW92aW5nIFZNIGRpc2tzIGZyb20gdGhlIFNTRAogICAgc3RvcmFnZSBkb21haW4gdG8g dGhlICYjMzk7c2xvdyYjMzk7IHN0b3JhZ2UgZG9tYWluIG9uIHRoZSBOQVMgYW5kIHZpY2UKICAg IHZlcnNhIHdvcmtzIGZpbmUuPGJyPgogICAgUHJvYmxlbSB3aXRoIHRoZXNlIGtpbmQgb2Ygc2V0 dXBzIGlzIHJlZHVuZGFuY3kgd2hpY2ggaXMgb2Zjb3Vyc2UKICAgIG5vbi1leGlzdGFudCA6LSk8 YnI+CiAgICA8YnI+PC9kaXY+PC9ibG9ja3F1b3RlPjxicj5UYWtlIGNhcmUgdGhhdCB1cCB0byBh bmQgaW5jbHVkaW5nIFJIRUwgNyBtb3VudGluZyBleHBvcnRzIHByb3ZpZGVkIGJ5IHRoZSBsb2Nh bGhvc3QgTkZTLXNlcnZlciBjYW4gbGVhZCB0byBkZWFkbG9ja3Mgc28gaXQmIzM5O3Mgbm90IGEg cmVjb21tZW5kZWQgY2hvaWNlLjxicj5BIGxvb3BiYWNrIGlTQ1NJIHRhcmdldCBzaG91bGQgYmUg bW9yZSByZWxpYWJsZSBvbiB0aGlzIHNpZGUuPGJyPjxhIGhyZWY9Imh0dHA6Ly9saW51eC1pc2Nz aS5vcmcvd2lraS9Mb29wYmFjayI+aHR0cDovL2xpbnV4LWlzY3NpLm9yZy93aWtpL0xvb3BiYWNr PC9hPjxkaXY+wqA8L2Rpdj48YmxvY2txdW90ZSBjbGFzcz0iZ21haWxfcXVvdGUiIHN0eWxlPSJt YXJnaW46MHB4IDBweCAwcHggMC44ZXg7Ym9yZGVyLWxlZnQtd2lkdGg6MXB4O2JvcmRlci1sZWZ0 LWNvbG9yOnJnYigyMDQsMjA0LDIwNCk7Ym9yZGVyLWxlZnQtc3R5bGU6c29saWQ7cGFkZGluZy1s ZWZ0OjFleCI+PGRpdiBiZ2NvbG9yPSIjRkZGRkZGIiB0ZXh0PSIjMDAwMDAwIj4KICAgIFJlZ2Fy ZHMsPGJyPgogICAgPGJyPgogICAgSm9vcDxicj4KICAgIDxicj4KICA8L2Rpdj4KCjxicj5fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXzxicj4KVXNlcnMgbWFp bGluZyBsaXN0PGJyPgo8YSBocmVmPSJtYWlsdG86VXNlcnNAb3ZpcnQub3JnIj5Vc2Vyc0Bvdmly dC5vcmc8L2E+PGJyPgo8YSBocmVmPSJodHRwOi8vbGlzdHMub3ZpcnQub3JnL21haWxtYW4vbGlz dGluZm8vdXNlcnMiIHJlbD0ibm9yZWZlcnJlciIgdGFyZ2V0PSJfYmxhbmsiPmh0dHA6Ly9saXN0 cy5vdmlydC5vcmcvbWFpbG1hbi9saXN0aW5mby91c2VyczwvYT48YnI+Cjxicj48L2Jsb2NrcXVv dGU+PC9kaXY+PGJyPjwvZGl2PjwvZGl2Pgo= --===============3464486515559693082==--