That's great news, thanks for sharing. -- Sent from the Delta quadrant using Borg technology!
Nux! www.nux.ro ----- Original Message ----- > From: "Swen - swen.io" <m...@swen.io> > To: "users" <users@cloudstack.apache.org> > Sent: Wednesday, 21 February, 2018 08:15:24 > Subject: AW: AW: KVM with shared storage > I heard some rumors about Cloudstack is on the roadmap of ScaleIO. We, as the > community, need to make some buzz and create some business cases. > > @Lucian: Thank you very much for your mail. > > @Andrija: Thank you very much, too! > > Mit freundlichen Grüßen / With kind regards, > > Swen > > -----Ursprüngliche Nachricht----- > Von: Andrija Panic [mailto:andrija.pa...@gmail.com] > Gesendet: Dienstag, 20. Februar 2018 22:26 > An: users <users@cloudstack.apache.org> > Cc: S. Brüseke, proIO GmbH <s.brues...@proio.com> > Betreff: Re: AW: KVM with shared storage > > FYI, we eventually went with SolidFire. > > ACS integration development support from Mike T. and the actual support on the > hardware product is just astonishing... (vs. all other shitty support and > quality of other vendors solutions I have experienced so far in my work), so I > simply have to share my delight that this kind of Vendor > (support) still exist somewhere... > > On 20 February 2018 at 19:24, Nux! <n...@li.nux.ro> wrote: > >> Hi Swen, >> >> If I were to build a cloud now, I'd use NFS and/or local storage, >> depending on requirements (HA, not HA etc). I know these technologies, >> they are very robust and I can manage them on my own. >> >> If you are willing to pay for a more sophisticated solution, then >> either look at CEPH and 42on.com for support (or others) or Storpool >> (similar to Ceph but proprietary, excellent support). >> >> Or go Solidfire if $$$ allows. >> >> My 2 pence. >> >> Lucian >> >> -- >> Sent from the Delta quadrant using Borg technology! >> >> Nux! >> www.nux.ro >> >> ----- Original Message ----- >> > From: "S. Brüseke, proIO GmbH" <s.brues...@proio.com> >> > To: "users" <users@cloudstack.apache.org> >> > Sent: Monday, 19 February, 2018 15:04:13 >> > Subject: AW: KVM with shared storage >> >> > Thank you guys for your replies! >> > So the only stable option for KVM and shared storage is to use NFS >> > or >> CEPH at >> > the moment? >> > >> > @Dag: I am evaluating ScaleIO with KVM and it works great! Easy >> installation, >> > good performance and handling. I installed ScaleIO on the same >> > servers >> as KVM >> > is installed, because I took a hyper-converged approach. We do not >> > have >> any >> > developing skills in our company, but I am really interested in >> > ScaleIO drivers. Do you know any other customers/users of CS who are >> > looking for >> it >> > too? >> > >> > Mit freundlichen Grüßen / With kind regards, >> > >> > Swen >> > >> > -----Ursprüngliche Nachricht----- >> > Von: Andrija Panic [mailto:andrija.pa...@gmail.com] >> > Gesendet: Montag, 19. Februar 2018 15:39 >> > An: users <users@cloudstack.apache.org> >> > Betreff: Re: KVM with shared storage >> > >> > From my (production) experience from few years ago, even GFS2 as a >> clustered >> > file system was SOOOOOOOO unstable, and lead to locks, causing the >> > share >> to >> > become unresponsive 100%, and then you go and fix the things any way >> > you >> can >> > (and this was with only 3 nodes !!! accessing the share with LIGHT >> > write IO)...all setup by RH themselves back in the days (not cloud, >> > some web >> project) >> > >> > Avoid at all cost. >> > >> > Again, I need to refer to the work of Mike.Tutkowski from Solidfire, >> where he >> > implemented "online storage migration" from NFS/CEPH to SOLIDFIRE - >> > I >> hope that >> > someone (DEVs) could implement this globally between NFS storages >> > for >> begining, >> > if there is any interest, since you can very easily do this >> > migration >> manually >> > with virsh and editing XML to reference new volumes on new storage, >> > then >> you >> > can live migrate VM while it's running with zero downtime...(so zero >> shared >> > storage here, but again live migration works (with storage)) >> > >> > Cheers >> > >> > On 19 February 2018 at 15:21, Dag Sonstebo >> > <dag.sonst...@shapeblue.com> >> > wrote: >> > >> >> Hi Swen, >> >> >> >> +1 for Simon’s comments. I did a fair bit of CLVM POC work a year >> >> +ago and >> >> ended up concluding it’s just not fit for purpose, it’s too >> >> unstable and STONITH was a challenge to say the least. As you’ve >> >> seen from our blog article we have had a project in the past using >> >> OCFS2 – but it is again a challenge to set up and to get running >> >> smoothly + you need to go cherry picking modules which can be >> >> tricky since you are into Oracle territory. >> >> >> >> For smooth running I recommend sticking to NFS if you can – if not >> >> take a look at CEPH or gluster, or ScaleIO as Simon suggested. >> >> >> >> Regards, >> >> Dag Sonstebo >> >> Cloud Architect >> >> ShapeBlue >> >> >> >> On 19/02/2018, 13:45, "Simon Weller" <swel...@ena.com.INVALID> wrote: >> >> >> >> So CLVM used to be supported (and probably still works). I'd >> >> highly recommend you avoid using a clustered file system if you can >> >> avoid it. See if your SAN supports the ability to do exclusive locking. >> >> >> >> There was chatter on the list a couple of years ago about a >> >> scaleio storage driver, but I'm not sure whether there was any >> >> movement on that or not. >> >> >> >> >> >> - Si >> >> >> >> >> >> ________________________________ >> >> From: S. Brüseke - proIO GmbH <s.brues...@proio.com> >> >> Sent: Monday, February 19, 2018 4:57 AM >> >> To: users@cloudstack.apache.org >> >> Subject: KVM with shared storage >> >> >> >> Hi @all, >> >> >> >> I am evaluating KVM for our Cloudstack installation. We are >> >> using XenServer at the moment. We want to use shared storage so we >> >> can do live migration of VMs. >> >> For our KVM hosts I am using CentOS7 with standard kernel as OS >> >> and for shared storage I am evaluating ScaleIO. KVM and ScaleIO >> >> installation is working great and I can map a volume to all KVM hosts. >> >> I end up with a device (dev/scinia) of block storage on all KVM >> hosts. >> >> >> >> As far as I understand I need a cluster filesystem on this >> >> device so I can use it on all KVM hosts simultaneously. So my >> >> options are ocfs2, gfs2 and clvm. As documented clvm is not >> >> supported by Cloudstack and therefore not really an option. >> >> I found this shapeblue howto (http://www.shapeblue.com/ >> >> installing-and-configuring-an-ocfs2-clustered-file-system/) for >> >> ocfs2, but this is for CentOS6 and I am unable to find a working >> >> ocfs2 module for >> >> CentOS7 standard kernel. >> >> [http://www.shapeblue.com/wp-content/uploads/2017/03/ >> >> Fotolia_51644947_XS-1.jpg]<http://www.shapeblue.com/ >> >> installing-and-configuring-an-ocfs2-clustered-file-system/> >> >> >> >> Installing and Configuring an OCFS2 Clustered File System ...< >> >> http://www.shapeblue.com/installing-and-configuring-an- >> >> ocfs2-clustered-file-system/> >> >> www.shapeblue.com >> >> Last year we had a project which required us to build out a KVM >> >> environment which used shared storage. Most often that would be NFS >> >> all the way and very occasionally ... >> >> >> >> >> >> >> >> >> >> So my question is how are you implementing shared storage with >> >> KVM hosts in your Cloudstack installation if it is not NFS? Thx for >> >> your >> help! >> >> >> >> Mit freundlichen Grüßen / With kind regards, >> >> >> >> Swen >> >> >> >> >> >> >> >> - proIO GmbH - >> >> Geschäftsführer: Swen Brüseke >> >> Sitz der Gesellschaft: Frankfurt am Main >> >> >> >> USt-IdNr. DE 267 075 918 >> >> Registergericht: Frankfurt am Main - HRB 86239 >> >> >> >> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte >> >> Informationen. >> >> Wenn Sie nicht der richtige Adressat sind oder diese E-Mail >> >> irrtümlich erhalten haben, >> >> informieren Sie bitte sofort den Absender und vernichten Sie >> >> diese Mail. >> >> Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser >> >> Mail sind nicht gestattet. >> >> >> >> This e-mail may contain confidential and/or privileged information. >> >> If you are not the intended recipient (or have received this >> >> e-mail in >> >> error) please notify >> >> the sender immediately and destroy this e-mail. >> >> Any unauthorized copying, disclosure or distribution of the >> >> material in this e-mail is strictly forbidden. >> >> >> >> >> >> >> >> >> >> >> >> dag.sonst...@shapeblue.com >> >> www.shapeblue.com >> >> 53 Chandos Place, Covent Garden, London WC2N 4HSUK @shapeblue >> >> >> >> >> >> >> >> >> > >> > >> > -- >> > >> > Andrija Panić >> > >> > >> > - proIO GmbH - >> > Geschäftsführer: Swen Brüseke >> > Sitz der Gesellschaft: Frankfurt am Main >> > >> > USt-IdNr. DE 267 075 918 >> > Registergericht: Frankfurt am Main - HRB 86239 >> > >> > Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte >> Informationen. >> > Wenn Sie nicht der richtige Adressat sind oder diese E-Mail >> > irrtümlich >> erhalten >> > haben, >> > informieren Sie bitte sofort den Absender und vernichten Sie diese Mail. >> > Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail >> > sind >> nicht >> > gestattet. >> > >> > This e-mail may contain confidential and/or privileged information. >> > If you are not the intended recipient (or have received this e-mail >> > in >> error) >> > please notify >> > the sender immediately and destroy this e-mail. >> > Any unauthorized copying, disclosure or distribution of the material >> > in >> this >> > e-mail is strictly forbidden. >> > > > > -- > > Andrija Panić
