Marc Bevand wrote:
>
> Overall, like you I am frustrated by the lack of non-RAID inexpensive native
> PCI-E SATA controllers.
>
>
>
Why non-raid? Is it cost?
Personally I'm interested in a high port count RAID card, with as much
battery-backed cache RAM as possible, and that can export as many LUNS
as it can handle drives. I want a card like that so that I can give ZFS
as many single drive RAID 0 luns that have battery-backed write caches
as possible.
I know it won't be cheap, but it should perform really good.
In my current machines (IBM x346's), I'm stuck with U320 scsi internal
for now, but I have the 256MB internal battery backed '7k' RAID card,
and I've made 5 1 disk RAID0 LUNs to get the benefits of the write cache
on the card but still let ZFS have the benefits of a many disk JBOD.
I'm on the look out for SATA RAID card with 1-4GB of battery-backed
Cache to redo this config with 10-24 SATA drives.
I'll probably end up with multiple cards, since 1GB caches seem to be
the most I've found.
-Kyle
> [1] http://cooldrives.com/ss42chesrapc.html
> [2] http://www.lycom.com.tw/PE124R5.htm
> [3] http://en.wikipedia.org/wiki/List_of_Marvell_Technology_Group_chipsets
> [4]
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=drivers/ata/sata_mv.c;hb=HEAD
>
>
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>
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