[CentOS] SAS/SATA DAS

Rainer Duffner rainer at ultra-secure.de
Tue Sep 2 15:29:03 UTC 2008


Joseph L. Casale schrieb:
>
> I need to replace a slow HP MSA20 that’s a bottleneck right now (We 
> are an HP shop).
> HP’s only option with 3.5” SATA drives is stuck at SATA I behind a SAS 
> controller.
>
> Dell makes an MD1000 that claims SATA II speeds behind a SAS Perc 5/E 
> (Don’t know anything about dell).
>
>  
>
> Anyone got any real world info they can share? I need 3.5” SATA II at 
> least 12 drives behind SAS,
>
> I am not concerned about space and could use multiple 1u chassis if I 
> had to.
>


Promise VTRAK J610sS?

We use it with Solaris and ZFS - I'm not too keen on using LVM on more 
than a handful of disks.
IMO, 16 disks is probably the minimum to get some decent non-linear 
performance out of SATA.

If you have the money, you can go for a SUN J4500 ;-)




Rainer


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