From andreil1 at starlett.lv Sat Mar 24 09:35:38 2018 Content-Type: multipart/mixed; boundary="===============8181727675992224467==" MIME-Version: 1.0 From: Andrei Verovski To: users at ovirt.org Subject: Re: [ovirt-users] Which hardware are you using for oVirt Date: Sat, 24 Mar 2018 11:35:38 +0200 Message-ID: In-Reply-To: 815987B5-31DA-4316-809D-A03363A1E3C3@gmail.com --===============8181727675992224467== 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. --------------D22D740E8090EF46CB19D891 Content-Type: text/plain; charset=3Dutf-8 Content-Transfer-Encoding: quoted-printable Hi, HL ProLiant DL380, dual Xeon 120 GB RAID L1 for system 2 TB RAID L10 for VM disks 5 VMs, 3 Linux, 2 Windows Total CPU load most of the time is=3DC2=3DA0 low, high level of activity re= la=3D ted to disk. Host engine under KVM appliance on SuSE, can be easily moved, backed up, copied, experimented with, etc. You'll have to use servers with more RAM and storage than main. More then one NIC required if some of your VMs are on different subnets, e.g. 1 in internal zone and 2nd on DMZ. For your setup 10 GB NICs + L3 Switch for ovirtmgmt. BTW, I would suggest to have several separate hardware RAIDs unless you have SSD, otherwise limit of the disk system I/O will be a bottleneck. Consider SSD L1 RAID for heavy-loaded databases. *Please note many cheap SSDs do NOT work reliably with SAS controllers even in SATA mode*. For example, I supposed to use 2 x WD Green SSD configures as RAID L1 for OS. It was possible to install system, yet under heavy load simulated with iozone disk system freeze, rendering OS unbootable. Same crash was experienced with 512GB KingFast SSD connected to broadcom/AMCC SAS RAID Card. On 03/24/2018 10:33 AM, Andy Michielsen wrote: > Hi all, > > Not sure if this is the place to be asking this but I was wondering whi= =3D ch hardware you all are using and why in order for me to see what I would= =3D be needing. > > I would like to set up a HA cluster consisting off 3 hosts to be able t= =3D o run 30 vm=3DE2=3D80=3D99s. > The engine, I can run on an other server. The hosts can be fitted with = =3D the storage and share the space through glusterfs. I would think I will b= =3D e needing at least 3 nic=3DE2=3D80=3D99s but would be able to install ovn. = (Are=3D 1gb nic=3DE2=3D80=3D99s sufficient ?) > > Any input you guys would like to share would be greatly appriciated. > > Thanks, > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users --------------D22D740E8090EF46CB19D891 Content-Type: text/html; charset=3Dutf-8 Content-Transfer-Encoding: quoted-printable

Hi,

HL ProLiant DL380, dual Xeon
120 GB RAID L1 for system
2 TB RAID L10 for VM disks
5 VMs, 3 Linux, 2 Windows
Total CPU load most of the time is=3DC2=3DA0 low, high level of activ= it=3D y related to disk.
Host engine under KVM appliance on SuSE, can be easily moved, backed up, copied, experimented with, etc.

You'll have to use servers with more RAM and storage than main.
More then one NIC required if some of your VMs are on different subnets, e.g. 1 in internal zone and 2nd on DMZ.
For your setup 10 GB NICs + L3 Switch for ovirtmgmt.

BTW, I would suggest to have several separate hardware RAIDs unless you have SSD, otherwise limit of the disk system I/O will be a bottleneck. Consider SSD L1 RAID for heavy-loaded databases.
Please note many cheap SSDs do NOT work reliably with SAS controllers even in SATA mode.

For example, I supposed to use 2 x WD Green SSD configures as RAID L1 for OS.
It was possible to install system, yet under heavy load simulated with iozone disk system freeze, rendering OS unbootable.
Same crash was experienced with 512GB KingFast SSD connected to broadcom/AMCC SAS RAID Card.

On 03/24/2018 10:33 AM, Andy Michielsen wrote:

Hi all,

Not sure if this is the place to be asking this but I was wondering which=
=3D
 hardware you all are using and why in order for me to see what I would b=
=3D
e needing.

I would like to set up a HA cluster consisting off 3 hosts to be able to =
=3D
run 30 vm=3DE2=3D80=3D99s.
The engine, I can run on an other server. The hosts can be fitted with th=
=3D
e storage and share the space through glusterfs. I would think I will be =
=3D
needing at least 3 nic=3DE2=3D80=3D99s but would be able to install ovn. (A=
re 1=3D
gb nic=3DE2=3D80=3D99s sufficient ?)

Any input you guys would like to share would be greatly appriciated.

Thanks,
_______________________________________________
Users mailing list
Use=3D
rs(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users

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