300MBps SATA

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Whatever you come up with, it isn't going to be low cost or simple by any
stretch of the imagination. You will need either 66mhz 64bit PCI bus or PCI
X to start with. So a good motherboard is first on your shopping list.

I use LSI MegaRaid 150-4 raid controller, it is capable of using 66/64 PCI
slot. They make a 6 port version also. 3ware makes a card that I think has
12 ports. Lets say you use the LSI 6 port just for fun, it is a bit cheaper
than 3ware cards I think, yet still a quality unit. Lets say you go raid 0,
250GB drives, 6 drives on one controller. Thats 1.5TB per controller.
You'll need 2 controllers-which you could stripe using your OS for a total
capacity of 3TB. Pretty ****ing complicated already, a data catastrophe
waiting to happen.

Prices from Newegg:

2 SATA 150-6 cards: $610.00
12 250Gb drives (WD2500JD): $1883.88

Already you are looking at about $2500 for the cheapest option around, and I
am not even sure if you would be able to attain 300MB/s. That would require
25MB/s sustained write speeds for each drive. If you used the fastest 74GB
raptors, you would need 41 drives to make your 3TB.

Good luck! Keep us posted.

--Dan
 
What will SATA II do that will allow a low cost 3TB 300MBps storage
solution? That is one tall order.

Thanks,
--Dan
 
Ok, thanks for the answers.

3ware Escalade 9500S-12 has 12 ports. 12x250mb drives is 3TB.

I guess by your post that using 2 controllers is just begging for
problems, but If I use just one, is it then just striping them and
then plug and play - or will I often run into a lot off other problems
on my way??

How fast will this be, anyone want to guess??
Why will it be better with SATA II ?
When will the first SATA II arrive ??
What RAID is the right choice for me?

12 x Maxtor250 3200 $
3ware 9500 1200 $
PCI 64 matrox 1000 $
motherboard ??
 
Either way, 1 card with 12 ports or 2 cards with 6 ports, if just 1 of your
drives dies-you are screwed. You MAY get better performance by 2 cards but
that is a realm I am just not familiar with. The 2 cards are cheaper thats
why I used them as an example.

I think the only choice for you is RAID 0, or if you double your costs, RAID
10 (mirrored striped sets). Any other raid schemes involving parity will
cause you to take a big performance hit and probably never reach your 300MBs
requirement (which exceeds uncompressed HD by about 100MBs).

Sounds fun though.

As far as SATA II goes, I don't see how it would help you. The drive speed
isn't limited by the interface in most all cases (i.e. the throughput of a
10,000rpm SATA disk is *about* what you would expect froma 10,000 SCSI disk)

--Dan
 
-- said:
Hi

Is it possible to make a SATA RAID low cost hardisk array that can
deliver minimum 300MBps?
Click to expand...

The ability to do that has NOTHING to do with SATA 300.

www.3ware.com
Let's say minimum 3TB.

The reason I'm asking is that I want to be able to play (and work
with) large uncompressed High Definition pictures realtime, but I
can't afford the expensive brands.
Click to expand...

Brands of what?

Forget regular PCI....too slow.
In/out PCI could be from this:
http://www.blackmagic-design.com/site/decklinkhdpro.htm
Click to expand...

"All these incredible features are packed into a high speed single slot
PCI-X 133 MHz card,"
or
http://www.bluefish444.com/products/retail/detail/lustdetail.htm
Click to expand...

"64bit PCI Video Card"
 
Already you are looking at about $2500 for the cheapest option around, and I
am not even sure if you would be able to attain 300MB/s. That would require
25MB/s sustained write speeds for each drive. If you used the fastest 74GB
raptors, you would need 41 drives to make your 3TB.
Click to expand...

No, use Hitachi 7K400 drives.
 
-- said:
Ok, thanks for the answers.

3ware Escalade 9500S-12 has 12 ports. 12x250mb drives is 3TB.

I guess by your post that using 2 controllers is just begging for
problems, but If I use just one, is it then just striping them and
then plug and play - or will I often run into a lot off other problems
on my way??

How fast will this be, anyone want to guess??
Click to expand...

Mobo limited.
Why will it be better with SATA II ?
No.

When will the first SATA II arrive ??
What RAID is the right choice for me?
Click to expand...

There is no other option except RAID 0 or $100K.
12 x Maxtor250 3200 $
Click to expand...

Use Hitachi 7K400
3ware 9500 1200 $
PCI 64 matrox 1000 $
Click to expand...

What's the above?
 
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