Adaptec 1210 weird behaviour

[Jon Noack]

On 4/12/2005 2:18 PM, 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?
> 
> But then I don't understand that it gets away with advertising it
> as a RAID0/1 controller...

The RAID functionality is implemented in the driver, so the "product" as 
a whole is a RAID0/1 controller.  This is very common; in fact, most 
products under $150-200 are like this...

Jon