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Direct-attached storage meets Serial-attached storage performance

Dell, Inc. yesterday announced immediate availability of its new PowerVault direct attached storage server.

The PowerVault MD1000 is a 3U Serial-Attached Storage disk based storage server with the capabilities to accomodate up to fifteen SAS 3.5-inch hard drives at 10k or 15k RPM. Drives can range in capacties from 36GB to 300GB on the SAS interface with a maximum aggregate storage capacity of 4.5TB with RAID 0, 1, 5, 10, and 50. With the optional PERC 5/E RAID controller the maximum capacity is brought to 45 hard drives at 13.5TB of storage capacity across three MD1000 rackmount units.

The MD1000 features redundant hot-pluggable power supplies, up to two 12.0Gbps interfaces and and the ability to split up the drives into two groups to handle two different servers simultaneously.

Like all Dell products, the MD1000 can be configured to taste with options such as number of PERC 5/E controllers (atleast 1 is required for operation) and the number and capacity of drives the server will come with (atleast 2 are required for operation with maximum physical capacity of 15 drives in each 3U server.

Additional options include UPS systems, spare hard drives in any capacities, spare batteries for the PERC 5/E controller and support and installation services. The bare minimum price for the MD1000 configured with two 36GB drives, and the bare minimum for service and support will come to a subtotal of about $3570 while adding all of the options and choosing the highest service and support package will bring the price to around $18,900. This one probably isn't for storing a few MP3s and videos of your European adventure off your digital camera.


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Why no Sata drives?
By photoguy99 on 5/11/2006 4:14:36 PM , Rating: 3
The great thing about SAS is that it supports SATA and yet Dell doesn't even offer this as an option.

If it did the capacity would be 33TB instead of 13!!

Why put SATA in an SAS setup? Easy, say you need some 15k drives for a really fast database, but other drives just for massive storage. This lets you do both while maintaining a consistent setup.





RE: Why no Sata drives?
By hstewarth on 5/11/2006 5:18:57 PM , Rating: 2
Not sure if this unit supports it, but the Supermicro SAS document states that SATA drives are supported. But note: SATA drives are not as fast as SAS drives.


RE: Why no Sata drives?
By bob661 on 5/11/2006 5:33:25 PM , Rating: 2
That's pretty sweet.


RE: Why no Sata drives?
By ToeCutter on 5/28/2006 12:46:26 PM , Rating: 2
To say nothing of SATA failing at 3x the rate of FC (SAS is too new new to make any observations regarding reliability).

The IEEE is working hard to ratify a RAID 6 (dual parity) draft due directly to the ridiculously high failure rate of SATA in the *enterprise*. (Your desktop RAID config doesn't apply here). I've had several customers suffer multiple drive failures on arrays (A few had drives fail right in the middle of rebuilds. Tragic!)

SATA works just dandy for desktop and light server useage, but you get those spindles going and keep 'em spinning 24/7, those cheap drives begin to demonstrate exactly why they're so...... cheap.

So, if you plan on using SATA for a 33TB array, make sure you have PLENTY of tape for backups ;-)


Nice vapor launch
By AkaiRo on 5/11/2006 9:13:51 PM , Rating: 2
Hmmm, I wonder how Dell's going to provide up to 13TB of SAS storage when there aren't any 300GB SAS drives currently sampling in decent quantity for the big vendors? They are trying to play catch up with HP (MSA1000 or MSA1500) and leap frog others (Oooh, we've got 3.5" SAS drives).

SAS' speeds are great, but their true performance and architectural superiority will only be realized when dual-ported SAS drives become available.




By hstewarth on 5/12/2006 3:30:06 PM , Rating: 3
I just went to Dell site and customized an order with 15 300G drives and it was $12708 - estimate ship date May 31st 2006.

Doesn't look like a paper launch to me. Not sure what drives they are - maybe they have access to Seagates 300G SAS's early or some other manufactor.


?
By GGA1759 on 5/11/2006 3:05:42 PM , Rating: 2
What is Raid 50?




RE: ?
By AdamsJabbar on 5/11/2006 3:09:00 PM , Rating: 2
RAID 50 = Two striped RAID 5s. It should technically be RAID 5+0, but 50 takes up so much less space...


SAS Is awesome technology
By hstewarth on 5/11/2006 3:09:00 PM , Rating: 2
SAS ( Serail Attach SCSI ) is awesome technology. Not only is downward compatible with SATA but alwso supports up to 16256 drives.

Supermicro has a really nice document explaining the technology ( pdf )

http://www.supermicro.com/downloadables/pdf/Superm...




damn
By albundee on 5/11/06, Rating: 0
"There is a single light of science, and to brighten it anywhere is to brighten it everywhere." -- Isaac Asimov

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