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Areca's 24-port SATA controller - Image courtesy HardwareXL
Would you like 12, 16 or 24 ports?

Tech site Hardware XL has posted news on Areca’s new PCI Express SATA II RAID controllers. The new Areca SATA II RAID controllers are available in three models—ARC-1230ML, ARC-1260ML and ARC-1280ML with 12, 16 and 24 SATA II ports respectively. These Areca SATA II RAID controllers will also support mini SAS connectors by allocating four SATA II ports too. There’s also an ARC-1280 model that lacks the mini SAS capabilities.

The PCI Express x8 based Areca SATA II RAID controllers are based on Intel’s 81341 I/O processor clocked at 800 MHz. One 240-pin DIMM slot is available as a cache and comes with 256MB of DDR2-533 ECC. Memory can be upgraded to 2GB with another DDR2 memory module. Non-ECC memory modules are supported as well.

RAID levels 0, 1, 1E, 3, 5, 6 or JBOD are supported. Native command queuing is also supported. The Areca SATA II RAID controllers also support staggered spin-up and spin down when hard drives are not in use. An Ethernet port is also available for management purposes too.

Availability is unknown as the Areca website still states the controllers as “Coming Soon.” Pricing should be fairly high as expected of server-class SATA II RAID controllers.




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RAID 1E
By Doormat on 8/15/2006 3:58:10 PM , Rating: 2
Thats the first time I've heard of that RAID level. Google shows that its just a combination of RAID 0 and 1. Data is striped across all the disks and then the same bits are mirrored on a different disk somewhere in the array.




RE: RAID 1E
By s12033722 on 8/15/2006 4:10:19 PM , Rating: 2
So it is similar to RAID 10 or RAID 0+1?


RE: RAID 1E
By MercenaryForHire on 8/15/2006 4:18:50 PM , Rating: 1
http://www.bytepile.com/raid_class.php#11

Behaves like RAID 10 when the number of drives is even, when it's odd, see link as I'm not going to copy and paste it all.


RE: RAID 1E
By jmn2519 on 8/15/2006 4:13:33 PM , Rating: 2
I don't think so. Usually when you see an E on a RAID level it refers to a hot standby. If one disk fails RAID will automatically start rebuilding the array on the hot spare.

In that context I would assume raid 1e involves three disks. Two for the mirror and one standby. If one of the mirrors would fail the controller would rebuild the mirrored array using the hot spare.


RE: RAID 1E
By mino on 8/16/2006 2:33:00 PM , Rating: 2
AFAIK existence of a hot spare has nothing to do with the RAID level.


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