Re: Homebuilt NAS Advice
Jonathan Dowland wrote:
> On Mon, Aug 03, 2020 at 12:07:32AM -0400, Stefan Monnier wrote:
> > > I absolutely agree, no matter what the file system, I would
> > > definitely up the memory to the 16GB max, especially if this is to
> > > be a media server.
> >
> > Most commercial "home NAS" boxes have much less than 16GB of RAM, for
> > example (e.g. the `Asustor AS5304T` described by pcmag as "best for
> > power users" for 2020 has 4GB of RAM).
>
> There's certainly a perception that, for using ZFS or BTRFS, >4GiB RAM
> is required. I don't know whether that's actually true in practise. It's
> one reason I avoid both those filesystems for machines I want to Just
> Work. Part of the problem is one person's NAS is another person's media
> server, with radically different requirements.
It's not a requirement. However, ZFS can and does use RAM as
cache more aggressively than the kernel generally does, so more
RAM is a performance improvement.
-dsr-
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