majk.sko...@eventim.de schrieb: >> -----Ursprüngliche Nachricht----- >> Von: Götz Reinicke - IT-Koordinator >> [mailto:goetz.reini...@filmakademie.de] >> Gesendet: Mittwoch, 25. November 2009 12:05 >> An: mysql@lists.mysql.com >> 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 Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reini...@filmakademie.de Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzende des Aufsichtsrats: Prof. Dr. Claudia Hübner Staatsrätin für Demographischen Wandel und für Senioren im Staatsministerium Geschäftsführer: Prof. Thomas Schadt -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=arch...@jab.org
