[PVE-User] About Server Hardware

admin extremeshok.com admin at extremeshok.com
Tue Jul 10 12:24:16 CEST 2012


Never run Raid5/6 for a database.

Never run an SSD on a hardware raid controller. SSD's do not understand
SAS commands, and you will loose TRIM support.

If you want a fast server, you will need raid 1/0 with 4 x 15 000 rpm
sas2 drives on a raid controller with 512MB cache a BBU (battery).

Here are my benchmarks with proxmox2: 
http://extremeshok.com/blog/?page_id=746
LSI MegaRaid 9260 + BBU + 4x Seagate 600GB 15000rpm SAS2 Drives.


On 2012/07/10 10:04 AM, Gusek, Michael wrote:
>
> Hello Jewel,
>
>  
>
> are your virtual Servers for productive use ? If yes, I would prefer a
> HDD-Raid for your VM’s. Raid 5 oder 6 with a good Raid-Controller
> (LSI, 3ware for example) and if you need much diskI/O you should use
> SAS Disk’s, or, if you have much money, Flashdisk.
>
>  
>
> Regards
>
>  
>
> Michael
>
>  
>
> *Von:*pve-user-bounces at pve.proxmox.com
> [mailto:pve-user-bounces at pve.proxmox.com] *Im Auftrag von *Jewel Nuruddin
> *Gesendet:* Montag, 9. Juli 2012 15:06
> *An:* Krzysztof Kotkowicz
> *Cc:* pve-user at pve.proxmox.com
> *Betreff:* Re: [PVE-User] About Server Hardware
>
>  
>
> Hi ,
>
> Thank you very much, actually I have the following scenario for
> hypervisor.
> HDD: 500 GB
> RAM: 32GB
> CPU 8 Core @2.9GHz
>
> and each guest vm is
> HDD: 50GB
> RAM: +/- 4 GB
> CPU 1 Core +/-@ 2.0 GHz
> Maximum 8 guest VM
>
> in my server two eth each  gigabit
>
> I want to run some mysql and membase service which have huge disk I/O
> So is the server configuration is OK or do i need SAS HDD or something
> else?
>
> Thanks
> Jewel
>
> --- On *Mon, 7/9/12, Krzysztof Kotkowicz /<krzysztof at kotkowicz.pl
> <mailto:krzysztof at kotkowicz.pl>>/* wrote:
>
>
> From: Krzysztof Kotkowicz <krzysztof at kotkowicz.pl
> <mailto:krzysztof at kotkowicz.pl>>
> Subject: Re: [PVE-User] About Server Hardware
> To: "Jewel Nuruddin" <jewel.nuruddin at yahoo.com
> <mailto:jewel.nuruddin at yahoo.com>>
> Date: Monday, July 9, 2012, 8:40 PM
>
> It mostly depends on configuration of VMs. We are not gypsies, and we
> cannot foretell from our glass spheres.
>
>  
>
> Regards,
>
> Chris.
>
>  
>
> On Mon, Jul 9, 2012 at 12:57 PM, Jewel Nuruddin
> <jewel.nuruddin at yahoo.com </mc/compose?to=jewel.nuruddin at yahoo.com>>
> wrote:
>
> Hi All,
>
> Need one comments about server hardware.
> In one hypervisor I want to run 8 guest vm, what will be the main
> hardware I have to
> take care properly!
> can any one have any thought?
>
> Thanks
> Jewel
>
>
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