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From:Götz Reinicke - IT-Koordinator Date:November 25 2009 12:35pm
Subject:Re: AW: Virtual servers, Raid 10 or Raid 01 - your opinions?
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Majk.Skoric@stripped schrieb:
>> -----Ursprüngliche Nachricht-----
>> Von: Götz Reinicke - IT-Koordinator
>> [mailto:goetz.reinicke@stripped]
>> Gesendet: Mittwoch, 25. November 2009 12:05
>> An: mysql@stripped
>> Betreff: Virtual servers, Raid 10 or Raid 01 - your opinions?
>>
>> Hi,
> 
> Hi,
>  
>> I do get two new Sun Fire X4170 servers with 8 SAS 300GB HDs, 24 GB RAM
>> each.
>>
>> Right now, we do not have a lot of data in our databases (5 small LAMP
>> servers), which should be consolidated.
>>
>> (The second Sun Fire X4170 will be the Webserver-Sun, the DB-Traffic
>> will have his own gbit switch (Webserver-Sun <-> MySQL-Sun) )
>>
>> There are more reads than writes.
>>
>> To simplify matters, I'd like to use virtual MySQL-Servers (Master and
>> Slave) on the sun and use one large raid.
> 
> Putting the question a bit higher for better understanding.
>> What RAID would be the better choice? 10 or 01?
> 
> Generally RAID 10 is more robust and fault tolerant. Some things depending on
> the controller if it's smart or not. But rebuilding the raid in case of an error
> is much faster with RAID10.
> 
> If you want to know more read
> http://www.pcguide.com/ref/hdd/perf/raid/levels/multXY-c.html
> 
> Concl.: RAID 10 is a good choice!

Thanks.

>> Also I was thinking, to use one RAID 1 for the virtualisation-system
>> and
>> the other six harddisks for the virtual servers.
> 
> It's not fully clear to me what you mean with virtual MySQL-Servers.

I'll install Citrix Xen Server and than two or more virtual Redhat EL /
Centos/ .... Servers on one SUN Fire server. (Next year I'll get some
more physical servers for clustering/failover/loadbalance)

So I'll use two disks for the xen server software and one raid 10 for
the virtual machines.

> 
> HTH!

It did. Thanks.

/Götz
-- 
Götz Reinicke
IT-Koordinator

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Thread
Virtual servers, Raid 10 or Raid 01 - your opinions?Götz Reinicke - IT-Koordinator25 Nov
  • Re: Virtual servers, Raid 10 or Raid 01 - your opinions?Krishna Chandra Prajapati25 Nov
  • Re: Virtual servers, Raid 10 or Raid 01 - your opinions?Johan De Meersman25 Nov
  • AW: Virtual servers, Raid 10 or Raid 01 - your opinions?Majk.Skoric25 Nov
    • Re: AW: Virtual servers, Raid 10 or Raid 01 - your opinions?Götz Reinicke - IT-Koordinator25 Nov
      • Re: AW: Virtual servers, Raid 10 or Raid 01 - your opinions?Johan De Meersman25 Nov