On Fri, 1 Dec 2006, Chad Leigh -- Shire.Net LLC wrote:
>
> On Dec 1, 2006, at 10:17 PM, Ian Collins wrote:
>
> > Chad Leigh -- Shire.Net LLC wrote:
> >
> >>
> >> On Dec 1, 2006, at 4:34 PM, Dana H. Myers wrote:
> >>
> >>> Chad Leigh -- Shire.Net LLC wrote:
> >>>
> >>>>
> >>>> And this is different from any other storage system, how? (ie,
> >>>> JBOD
> >>>> controllers and disks can also have subtle bugs that corrupt data)
> >>>
> >>>
> >>> Of course, but there isn't the expectation of data reliability
> >>> with a
> >>> JBOD that there is with some RAID configurations.
> >>>
> >>
> >> There is not? People buy disk drives and expect them to corrupt
> >> their data? I expect the drives I buy to work fine (knowing that
> >> there could be bugs etc in them, the same as with my RAID systems).
> >>
> > So you trust your important data to a single drive? I doubt it.
> > But I
> > bet you do trust your data to a hardware RAID array.
>
> Yes, but not because I expect a single drive to be more error prone
> (versus total failure). Total drive failure on a single disk loses
> all your data. But we are not talking total failure, we are talking
> errors that corrupt data. I buy individual drives with the
> expectation that they are designed to be error free and are error
> free for the most part and I do not expect a RAID array to be more
> robust in this regard (after all, the RAID is made up of a bunch of
> single drives).
>
> Some people on this list think that the RAID arrays are more likely
> to corrupt your data than JBOD (both with ZFS on top, for example, a
> ZFS mirror of 2 raid arrays or a JBOD mirror or raidz). There is no
Can you present a cut/paste where that assertion was made?
> proof of this or even reasonable hypothetical explanation for this
> that I have seen presented.
>
> Chad
>
> >
> > Ian
>
> ---
> Chad Leigh -- Shire.Net LLC
> Your Web App and Email hosting provider
> chad at shire.net
>
>
Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134 Timezone: US CDT
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