[CentOS] [OT] 8-15 TB storage: any recommendations?

Joseph L. Casale jcasale at activenetwerx.com
Thu Jan 7 17:28:34 UTC 2010


>> I also heard that disks above 1TB might have reliability issues.
>> Maybe it changed since then...
>>
>
>I remember rumors about the early 2TB Seagates.
>
>Personally, I won't RAID SATA drives over 500GB unless they're 
>enterprise-level ones with the limits on how long before the drive 
>reports a problem back to the host when it has a read error.
>
>Which should also take care of the reliability issue to a large degree.

An often overlooked issue is the rebuild time with Linux software raid and
all hw raid controllers I have seen. On large drives the times are so long
as a result of the sheer size, if the array is degraded you are exposed during
the rebuild. ZFS's resilver has this addressed as good as you can by only copying
actual data.

With this in mind, it's wise to consider how you develop the redundancy into
the solution...


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