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From Grégoire Lamodière <g.lamodi...@dimsi.fr>
Subject Re: KVM storage cluster
Date Sun, 07 Jan 2018 21:46:32 GMT
Hi Vahric,

Thank you. I will have a look on it.

Grégoire



Envoyé depuis mon smartphone Samsung Galaxy.


-------- Message d'origine --------
De : Vahric MUHTARYAN <vahric@doruk.net.tr>
Date : 07/01/2018 21:08 (GMT+01:00)
À : users@cloudstack.apache.org
Objet : Re: KVM storage cluster

Hello Grégoire,

I suggest you to look EMC scaleio for block based operations. It has a free one too ! And
as a block working better then Ceph ;)

Regards
VM

On 7.01.2018 18:12, "Grégoire Lamodière" <g.lamodiere@dimsi.fr> wrote:

    Hi Ivan,

    Thank you for your quick reply.

    I'll have a look on Ceph and related perfs.
    As you mentionned, 2 DRDB nfs servers can do the job, but if I can avoid using 2 blades
for just passing blocks to nfs, this is even better (and maintain them as well).

    Thanks for pointing to ceph.

    Grégoire




    ---
    Grégoire Lamodière
    T/ + 33 6 76 27 03 31
    F/ + 33 1 75 43 89 71

    -----Message d'origine-----
    De : Ivan Kudryavtsev [mailto:kudryavtsev_ia@bw-sw.com]
    Envoyé : dimanche 7 janvier 2018 15:20
    À : users@cloudstack.apache.org
    Objet : Re: KVM storage cluster

    Hi, Grégoire,
    You could have
    - local storage if you like, so every compute node could have own space (one lun per host)
    - to have Ceph deployed on the same compute nodes (distribute raw devices among nodes)
    - to dedicate certain node as NFS server (or two servers with DRBD)

    I don't think that shared FS is a good option, even clustered LVM is a big pain.

    2018-01-07 21:08 GMT+07:00 Grégoire Lamodière <g.lamodiere@dimsi.fr>:

    > Dear all,
    >
    > Since Citrix changed deeply the free version of XenServer 7.3, I am in
    > the process of Pocing moving our Xen clusters to KVM on Centos 7 I
    > decided to use HP blades connected to HP P2000 over mutipath SAS links.
    >
    > The network part seems fine to me, not so far from what we used to do
    > with Xen.
    > About the storage, I am a little but confused about the shared
    > mountpoint storage option offerds by CS.
    >
    > What would be the good option, in terms of CS, to create a cluster fs
    > using my SAS array ?
    > I read somewhere (a Dag SlideShare I think) that GFS2 is the only
    > clustered FS supported by CS. Is it still correct ?
    > Does it mean I have to create the GFS2 cluster, make identical mount
    > conf on all host, and use it on CS as NFS ?
    > I do not have to add the storage to KVM prior CS zone creation ?
    >
    > Thanks a lot for any help / information.
    >
    > ---
    > Grégoire Lamodière
    > T/ + 33 6 76 27 03 31
    > F/ + 33 1 75 43 89 71
    >
    >


    --
    With best regards, Ivan Kudryavtsev
    Bitworks Software, Ltd.
    Cell: +7-923-414-1515
    WWW: http://bitworks.software/ <http://bw-sw.com/>




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