[Cialug] Virtual Box and NAS

[Dave Hala Jr]

How does the SSD cache work?


On Thu, 2011-08-18 at 12:16 -0500, Nicolai wrote:
> On Wed, Aug 17, 2011 at 09:04:28PM -0500, Dave Hala Jr wrote:
> 
> > I've still got a need for about 4tb of just general file storage. If I
> > could outperform a ReadyNas 1500 using hardware that I have laying
> > around or an considering taking out of service, its worth considering.
> 
> Hey Dave,
> 
> I asked a friend whose $work has a lot of storage, what they use
> and what he suggests for your 4TB fileserver.  This is what he
> wrote:
> 
>  Server 1: 3ware 9750 8i with 36x2TB drives in RAID6 + hot spare
>  (expensive)
>  Server 2: 24x2TB drives in RAID-Z3 + Solid State Cache
>  (mission-critical, ZFS, freakin' AWESOME)
>  NAS 1: Drobo (www.drobo.com 4x2TB drives; nice features but expensive)
>  NAS 2: Oldass server with 10x250GB drives in software RAID5
> 
>  My recommendation would be three 2TB drives in RAID-Z1 in ZFS. I've
>  found it to be a majestic filesystem. You can drop in a cheap 32GB
>  SSD ($65) for write caching and get some amazing speeds.  Consider:
> 
>  3x2TB Seagate Barracuda XT (7200RPM) = $390
>  3x2TB Seagate Barracuda Green (5400RPM) + SSD Cache = $(240 + 65) = $305
> 
> Hope this helps,
> 
> Nicolai
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