Adaptec 1210 weird behaviour

Scott Long scottl at
Tue Apr 12 12:21:26 PDT 2005

Edwin Groothuis wrote:
> On Tue, Apr 12, 2005 at 10:21:27AM -0600, Scott Long wrote:
>>Edwin Groothuis wrote:
>>>The Adaptec 1210 is a serial ATA RAID0/1 controller.
>>>When the two disks are configured as RAID1, FreeBSD still sees two
>>>harddisks instead of one.
>>>This is with 5.3. Scary :-)
>>>Will try this weekend with 5.4
>>The 1210 is not a real RAID controller, it's a SATA controller with an
>>Adaptec BIOS that does RAID 0 and 1 during boot.  It's up to the OS to
>>do the RAID operations after that.  The new ATA driver in 6-current
> Euhm. Oh. Software RAID? A la WinModems?

More or less.  It's quite common these days, with lots of motherboard 
makers getting into the game and licensing software raid stacks for
their onboard SATA controllers.

> But then I don't understand that it gets away with advertising it
> as a RAID0/1 controller...

If you don't understand then you should be glad that you didn't choose
Marketting as a profession ;-)


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