[mythtv-users] NAS RAID 5 for MythTv
tom at redpepperracing.com
Tue Feb 6 16:30:45 UTC 2007
Jeffery Swan wrote:
> ----- Original Message -----
> From: "David Campbell"
> To: "Discussion about mythtv"
> Subject: Re: [mythtv-users] NAS RAID 5 for MythTv
> Date: Tue, 06 Feb 2007 14:11:46 +0000
> Jeffery Swan wrote:
> > If this is how it works (and I am assuming it is) I am thinking
> > that to reduce network traffic, I should put the NAS on a
> > seperate subnet. If the myth tv backend(s) have two NICs each
> > with one NIC dedicated to the NAS subnet and the other for the
> > front ends the network traffic should be much more stream lined.
> Are you really going to use more than 100mbit of traffic? Surely
> the IO
> of the raid 5 will be the bottleneck - rather than your network?
> HD records at higher than 12MB a sec which seems unlikely to me.
> Raid 0 will improve write speeds which is available on FreeNas - but
> then no redundancy.
> David Campbell :: www.cpfc.org
> mythtv-users mailing list
> mythtv-users at mythtv.org
> Actually I have 9 Front ends, 4 Backends, 6 Directv receivers and
> capture cards, 4 Security cameras with associated capture cards, and
> nearly 5 TB of Video/Audio/Photos. The reason I am looking at NAS is
> to move all my storage out of the Backends. My goal is to use 3 old
> mini-tower cases with 4 500 GIG drives each all on a Gigabit backbone.
> I was hoping that having the seperate cases would aleviate the
> bottleneck issue.
Ok, you win. Yeechang has been beaten!
> Does anyone know... can I use LVM over multiple NAS so that it all looks like a big /multimedia drive? I'll have to do some more experimenting when I get
> another NAS up and running.
I don't know about that, but you could use iSCSI to create a
virtual RAID0 stripe on top of multiple NAS mount points, assuming the
OS you are using supports iSCSI.
PS Why do you have advertising in your signature?
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