> On Tuesday 12 April 2011 15:34:21 Torres, Giovanni (NIH/NINDS) [C] wrote:
>> On Apr 12, 2011, at 3:23 AM, Matthew Feinberg wrote:
>>
>> ext4 does not seem to be fully baked in 5.6 yet. parted 1.8 does not
>> support creating ext4 (strange)
>>
>> The CentOS homepage states that ext4 is now a fully supported filesystem
>> in
>> 5.6. _______________________________________________
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>
> Steve,
> I'm managing machines with 30TB of storage for more then two years. And
> with
> good reporting and reaction we have never had to run fsck.
That's not the issue.
The issue is rebuild-time.
The longer it takes, the more likely is another failure in the array.
With RAID6, this does not instantly kill your RAID, as with RAID5 - but I
assume it will further decrease overall-performance and the rebuild-time
will go up significantly - adding the the risk.
Thus, it's generally advisable to do just use RAID10 (in this case, a
thin-striped array of RAID1-arrays).
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