[NTLUG:Discuss] Which filesystem & partitioning for a 9Terabyte volume?

Richard ntlug at rain4us.net
Thu Jan 29 20:23:55 CST 2009


Ralph Green wrote:
> On Wed, 2009-01-28 at 09:51 -0600, Richard wrote:
>   
>> So what should I do now with eight 1.5TB drives and an 8-port 3ware 
>> controller (and either Slackware 12.2 or OpenSuse 11.1)? 
>>
>>     
>  Howdy,
>   I like the fact that you have 8 1.5 gig drives and you expect 9 gig
> total.  I hope that means you are thinking RAID-6 and not RAID-5. 
Well, a raid-5 with two spares, but not necessarily RAID6....although 
RAID6 sounds pretty good.
> I read a paper Robert Pearson posted a while back that talked about this. Given the size drives we have today, a single drive failure could cause a RAID-5 to not be recoverable.  The author recommended RAID-6.
>   
I see the article you're talking about. 
http://storagemojo.com/2007/07/19/why-arent-disk-reads-more-reliable/
interesting.. Well I think it just has to last a month. (famous last 
words...I know...temporary solutions have a bad habit of becoming 
permanent.)
>  I think some 3ware controllers natively handle RAID-6.  Which card did
> you get?
>   
I'm reusing an 8-port  9500S which has available  RaidType = { raid0, 
raid1, raid5, raid10, raid50, single, spare }

I made a quick search for firmware upgrades for the 9500s-8 but didn't 
find any.  I may search more tomorrow.

-- 
Richard



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