[CentOS] 40TB File System Recommendations

Thu Apr 14 06:54:24 UTC 2011
Sorin Srbu <sorin.srbu at orgfarm.uu.se>

>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf
>Of Christopher Chan
>Sent: Wednesday, April 13, 2011 4:49 PM
>To: centos at centos.org
>Subject: Re: [CentOS] 40TB File System Recommendations
>>> While we are at it, disks being directly connected to the raid card will
>>> mean there won't be bus contention from nics and what not whereas
>>> software raid 5/6 would have to deal with that.
>> Could that really be an issue as well? What kind of traffic levels are we
>> speaking of now? Approximately? That is to say, in as much this can be
>> quantified at all.
>> I've never really seen this problem.
>Oh yeah, we are on PCIe and NUMA architectures now. I guess this point
>no longer applies just like hardware raid being crap no longer applies
>because they are not underpowered i960/tiny cache boards anymore.

I'm sorry, I can't quite "read you". Is your reply meant to be sarcastic? If I
misunderstood it, I apologize.

Anyway, what I meant before was that I haven't really the problem with smaller
systems, like for eg department backups. Maybe up to 10TB-file systems, with not
too many user's homefolders, in the hundreds maybe, but still a lot of data
being transferred each day.