raidz configuration

[Olivier Smedts]

2009/11/29 Dimitry Andric <dimitry at andric.com>:
> On 2009-11-28 23:22, Wes Morgan wrote:
>> Simple question:
>>
>> 8 devices in a raidz2
>> or
>> 4 devices in a raidz x 2
>
> With the first configuration, any two drives can fail, and all data is
> still preserved.
>
> With the second configuration, if two drives fail within the same RAID
> set, you are screwed.

A raidz on top of four zfs mirrors would be better (ie raid1+0 vs raid 0+1).

>
> E.g., if safety is your concern, I would definitely choose the first
> configuration. :)
> _______________________________________________
> freebsd-fs at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe at freebsd.org"
>



-- 
Olivier Smedts                                                 _
                                        ASCII ribbon campaign ( )
e-mail: olivier at gid0.org        - against HTML email & vCards  X
www: http://www.gid0.org    - against proprietary attachments / \

  "Il y a seulement 10 sortes de gens dans le monde :
  ceux qui comprennent le binaire,
  et ceux qui ne le comprennent pas."