For a personnal use, the issue is often in the number of drive you can have with your tower/motherboard, more than really the price of hard drives themselves. gUI 2013/10/11 David Brown <david.brown@xxxxxxxxxxxx>: > On 11/10/13 09:05, Adam Goryachev wrote: >> On 11/10/13 17:52, Guillaume Betous wrote: >>>> RAID6, preferrably with a spare. >>> I'm not comfortable with RAID 6 setup. What is the minimal number of >>> hard drives for having a RAID 6 + spare ? >>> >> >> Check wikipedia, but minimum of 4 drives for RAID6, consider 2 data >> drives plus two redundant drives, allowing you to lose any two drives >> (slightly better than RAID10 on 4 drives). >> >> In direct answer, RAID6 + hot spare is a minimum of 5 drives. >> > > That's just the /sensible/ answer. The minimum is actually 4 drives - > one data, two redundant, and one spare (though obviously there are > better ways to use your drives). And with mdadm, you can tell it that > three of these drives are missing. While such things might seem a bit > silly, it is sometimes convenient to get your raid up and running with > the setup you want even if you haven't physically got the drives in > place yet - you can add them in later. > > -- Pour la santé de votre ordinateur, préférez les logiciels libres. Lire son mail : http://www.mozilla-europe.org/fr/products/thunderbird/ Browser le web : http://www.mozilla-europe.org/fr/products/firefox/ Suite bureautique : http://www.libreoffice.org/download/ -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
