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<div class="moz-cite-prefix">Hi All, <br>
<br>
The following calculator is very helpful when planning arrays:
<a class="moz-txt-link-freetext" href="http://www.raid-calculator.com/default.aspx">http://www.raid-calculator.com/default.aspx</a> <br>
<br>
I use RAID 5 most of the time since I tend to work with my
datasets in memory rather then write intermediate steps to disk.
I'm planning on moving to RAID 10 when larger capacity HP ProLiant
compatible HDDs/SSDs come down in price. <br>
<br>
Best Regards, <br>
- James <br>
<br>
On 10/16/2014 7:08 AM, Raony Guimaraes Corrêa Do Carmo Lisboa
Cardenas wrote:<br>
</div>
<blockquote
cite="mid:CALenahmfMrMjC877s_yjBCDM6tSQRRQZ8fbDogg5eHS-BXijTA@mail.gmail.com"
type="cite">
<div dir="ltr">You are not the first person who says about btrfs
Tony. Thank you, I will definitely give a try on the next few
weeks on this.<br>
<br>
I will also benchmark read/write speeds with 4 disks in raid 10
against 2 disks in raid 0.<br>
<br>
I will leave my /swap in ext4 for now since I barely used it.<br>
<br>
Kind regards!<br>
</div>
<div class="gmail_extra"><br clear="all">
<div>
<div dir="ltr">_____________________________________________<br>
<br>
Raony Guimarăes Corrêa Do Carmo Lisboa Cardenas<br>
PhD Student in Bioinformatics<br>
<br>
email: <a moz-do-not-send="true"
href="mailto:raonyguimaraes@gmail.com" target="_blank">raonyguimaraes@gmail.com</a><br>
skype/gtalk: raonyguimaraes<br>
phone: +55 31 93404152<br>
<div><br>
</div>
<div>Laboratory of Clinical Genomics<br>
UFMG School of Medicine</div>
<div>Federal University of Minas Gerais - UFMG<br>
Av. Prof. Alfredo Balena, 190, Sala 321<br>
Belo Horizonte, Brazil 30130-100<br>
_____________________________________________</div>
</div>
</div>
<br>
<div class="gmail_quote">On Thu, Oct 16, 2014 at 10:53 AM, Tony
Travis <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:tony.travis@abdn.ac.uk" target="_blank">tony.travis@abdn.ac.uk</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex"><span
class="">On 16/10/14 14:04, Raony Guimaraes Corrêa Do
Carmo Lisboa Cardenas wrote:<br>
> Hello All!<br>
><br>
> I'm using Biolinux (first 7 and now 8) in a Poweredge
T710 for almost<br>
> 3.5 years already. I like it's performance a lot!<br>
><br>
> I have 2 disks of 3TB in Raid-0 where i run Biolinux
8, Postgresql 9.4<br>
> and all the other things I need running really fast!<br>
</span>> [...]<br>
<br>
Hi, Raony.<br>
<br>
RAID0 is quite risky because if *any* of your disk fail you
will lose<br>
everything!<br>
<br>
I would use RAID10 instead or use two of your disks in RAID1
and backup<br>
onto the third single disk. Disk capacity is important, of
course, but<br>
you risk losing everything unless you are backing up your
RAID0 onto<br>
external or network disks.<br>
<br>
If you *really* want to live dangerously, you might try out
Btrfs!<br>
<br>
I'm running Bio-Linux 8 on an 8-disk Btrfs RAID10 on my
personal<br>
Bio-Linux workstation and it performs very well. I've been
doing<br>
disaster-recovery testing and it all seems to work very
well. The only<br>
real problem is that you can't swap on a Btrfs filesystem,
but you can<br>
mount a file on a loop device and swap on that instead.<br>
<br>
I think Btrfs is the future :-)<br>
<br>
Bye,<br>
<div class="HOEnZb">
<div class="h5"><br>
Tony.<br>
<br>
--<br>
Dr. A.J.Travis, University of Aberdeen, Institute of
Biological and<br>
Environmental Sciences, Cruickshank Building, St. Machar
Drive, Aberdeen<br>
AB24 3UU, Scotland, UK. tel <a moz-do-not-send="true"
href="tel:%2B44%280%291224%20272700"
value="+441224272700">+44(0)1224 272700</a>, fax <a
moz-do-not-send="true"
href="tel:%2B44%20%280%291224%20272%20396"
value="+441224272396">+44 (0)1224 272 396</a><br>
<a moz-do-not-send="true" href="http://www.abdn.ac.uk"
target="_blank">http://www.abdn.ac.uk</a>, mailto:<a
moz-do-not-send="true"
href="mailto:tony.travis@abdn.ac.uk">tony.travis@abdn.ac.uk</a>,
skype:ajtravis<br>
<br>
<br>
The University of Aberdeen is a charity registered in
Scotland, No SC013683.<br>
Tha Oilthigh Obar Dheathain na charthannas clàraichte
ann an Alba, Àir. SC013683.<br>
_______________________________________________<br>
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