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Date:      Tue, 28 Feb 2012 16:33:04 +0100
From:      Alexander Leidinger <Alexander@Leidinger.net>
To:        "Eugene M. Zheganin" <emz@norma.perm.ru>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: zfs, 1 gig of RAM and periodic weekly
Message-ID:  <20120228163304.Horde.ocr9EJjmRSRPTPOw0ffYu5A@webmail.leidinger.net>
In-Reply-To: <4F4C53B6.6060909@norma.perm.ru>
References:  <4F4B0F83.4090600@norma.perm.ru> <B1D93647-EDA3-49EF-85F4-4FF2AA5A893D@mac.com> <977febd5710ecac8cd9ea374ca0193f4.squirrel@109.169.62.232> <4F4C53B6.6060909@norma.perm.ru>

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Quoting "Eugene M. Zheganin" <emz@norma.perm.ru> (from Tue, 28 Feb  
2012 10:10:30 +0600):

> Hi.
>
> On 28.02.2012 01:02, Nenhum_de_Nos wrote:
>> regardless of the pool size ?
>>
>> I was planning on making an atom board a file server for my home,  
>> and I have two options: soekris
>> net6501 2GB RAM and intel board powered by the 330 atom (says 2GB  
>> limited as well). My plans are
>> to use from 4 up to 8 disks, and they should be 2TB at least.
>>
>> As its for home use, some p2p software and mostly music listening  
>> and sometimes movie streaming.
>>
>> should 2GB be that bad, that I should drop it and use UFS instead ?
>>
>> I may run any version of FreeBSD on it, was planning on 9-STABLE or 9.1.
>>
> In the same time I have a couple of hosts successfully running zfs  
> on 768 Megs and on 1 Gig of RAM. Both i386.
> And they aren't affected by the periodic weekly for some reason. And  
> they are used only as fileservers.
>
> So when I see all these advices to add a gazillion gigabytes of RAM  
> to use zfs - I don't see the connection.

The connection is performance and/or lack of tuning.

At home I haven't a problem to run a system with ZFS and 768MB and 1GB  
(well, the 1GB system has hardware problems, so it is degraded to a  
toybox to test things now, but ZFS is still rock solid on it). At a  
place where more than a handfull of people would access such a system  
in a way where the performance of big file transfers matter (not  
streaming, not just watching a movie on one system, ...), I would also  
recommend more RAM.

Bye,
Alexander.

-- 
  Michelle: You expect me to live in a tiny little hole?
  Fry: It'd be deeper, but I'm standing on a gopher.

http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org       netchild @ FreeBSD.org  : PGP ID = 72077137




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