Subject | Re: [firebird-support] Re: Raid 0 or not ? |
---|---|

Author | Alexandre Benson Smith |

Post date | 2009-11-18T01:05:22Z |

Leyne, Sean wrote:

So, in essence, if you use 2 disks on RAID-0 your chances double to lose everything compared to a single disk. If one guy is brave enough to put valuable data on a single cheap disk, he must be twice braver to use 2 disks on RAID-0 :)

--

Alexandre Benson Smith

Development

THOR Software e Comercial Ltda

Santo Andre - Sao Paulo - Brazil

www.thorsoftware.com.br

>I am not a statistician too, but I believe that if you put 2 disks you have twice the chance of one of those disks fail, if you have 3 disk, 3 times more chance and so on.

>> Is RAID0 more prone to crashes than a single disk? Obviously, the expected

>> MTBF for a set of two disks is shorter than just one of them, but is it

>> really *that* much shorter?

>>

>

> I am not a statistician to provide the exact numbers but my understanding is that the answer is most definitely Yes!

>

>

So, in essence, if you use 2 disks on RAID-0 your chances double to lose everything compared to a single disk. If one guy is brave enough to put valuable data on a single cheap disk, he must be twice braver to use 2 disks on RAID-0 :)

--

Alexandre Benson Smith

Development

THOR Software e Comercial Ltda

Santo Andre - Sao Paulo - Brazil

www.thorsoftware.com.br