[Bio-Linux] Fresh install - partitioning?

[Bramwell, Jason (NCS)]

Nice little tool but no RAID10 on there <sad face>

 

Regards

Jason Bramwell

 

From: James Mategko [mailto:jm at iehinc.com] 
Sent: 16 October 2014 16:31
To: bio-linux at nebclists.nerc.ac.uk
Subject: Re: [Bio-Linux] Fresh install - partitioning?

 

Hi All, 

  The following calculator is very helpful when planning arrays: http://www.raid-calculator.com/default.aspx 

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. 

Best Regards, 
- James 

On 10/16/2014 7:08 AM, Raony Guimaraes Corrêa Do Carmo Lisboa Cardenas wrote:

	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.
	
	I will also benchmark read/write speeds with 4 disks in raid 10 against 2 disks in raid 0.
	
	I will leave my /swap in ext4 for now since I barely used it.
	
	Kind regards!

	
	

	_____________________________________________
	
	Raony Guimarães Corrêa Do Carmo Lisboa Cardenas
	PhD Student in Bioinformatics
	
	email: raonyguimaraes at gmail.com
	skype/gtalk: raonyguimaraes
	phone: +55 31 93404152

	 

	Laboratory of Clinical Genomics
	UFMG School of Medicine

	Federal University of Minas Gerais - UFMG
	Av. Prof. Alfredo Balena, 190, Sala 321
	Belo Horizonte, Brazil 30130-100
	_____________________________________________

	 

	On Thu, Oct 16, 2014 at 10:53 AM, Tony Travis <tony.travis at abdn.ac.uk> wrote:

	On 16/10/14 14:04, Raony Guimaraes Corrêa Do Carmo Lisboa Cardenas wrote:
	> Hello All!
	>
	> I'm using Biolinux (first 7 and now 8) in a Poweredge T710 for almost
	> 3.5 years already. I like it's performance a lot!
	>
	> I have 2 disks of 3TB in Raid-0 where i run Biolinux 8, Postgresql 9.4
	> and all the other things I need running really fast!
	> [...]
	
	Hi, Raony.
	
	RAID0 is quite risky because if *any* of your disk fail you will lose
	everything!
	
	I would use RAID10 instead or use two of your disks in RAID1 and backup
	onto the third single disk. Disk capacity is important, of course, but
	you risk losing everything unless you are backing up your RAID0 onto
	external or network disks.
	
	If you *really* want to live dangerously, you might try out Btrfs!
	
	I'm running Bio-Linux 8 on an 8-disk Btrfs RAID10 on my personal
	Bio-Linux workstation and it performs very well. I've been doing
	disaster-recovery testing and it all seems to work very well. The only
	real problem is that you can't swap on a Btrfs filesystem, but you can
	mount a file on a loop device and swap on that instead.
	
	I think Btrfs is the future :-)
	
	Bye,

	
	  Tony.
	
	--
	Dr. A.J.Travis, University of Aberdeen, Institute of Biological and
	Environmental Sciences, Cruickshank Building, St. Machar Drive, Aberdeen
	AB24 3UU, Scotland, UK. tel +44(0)1224 272700 <tel:%2B44%280%291224%20272700> , fax +44 (0)1224 272 396 <tel:%2B44%20%280%291224%20272%20396> 
	http://www.abdn.ac.uk, mailto:tony.travis at abdn.ac.uk, skype:ajtravis
	
	
	The University of Aberdeen is a charity registered in Scotland, No SC013683.
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