10-05-2012
The maximum transfer rate of SATA 2 is, ideally, around 300 megabytes per second. You're beating that by 30% in the real world so it really does look like you're getting SATA 3 speeds.
Just because a drive uses a SATA 3 port doesn't mean it's capable of its full 600 megabytes per second, of course. Whether you're reaching the true maximum speed of your drive, I can't say without knowing what it is and looking in its manual. The limits of your southbridge and memory are also important.
Last edited by Corona688; 10-05-2012 at 01:22 PM..
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AAC(4) BSD Kernel Interfaces Manual AAC(4)
NAME
aac -- Adaptec AdvancedRAID Controller driver
SYNOPSIS
aac* at pci? dev ? function ?
ld* at aac? unit ?
DESCRIPTION
The aac driver provides support for the Adaptec AAC family of SCSI and SATA RAID controllers. These controllers support RAID 0, 1, 5, 10,
and volume sets. They have four channels in the add-in version or 1-2 channels in the motherboard integrated version, and are most often
found rebadged by Dell, Hewlett-Packard or IBM. Supported controllers include:
o Adaptec AAC-364
o Adaptec SCSI RAID 2120S
o Adaptec SCSI RAID 2200S
o Adaptec SATA RAID 2410SA
o Adaptec SATA RAID 3405
o Adaptec SCSI RAID 5400S
o Dell PERC 2/Si
o Dell PERC 2/QC
o Dell PERC 3/Di
o Dell PERC 3/Si
o Dell PERC 320/DC
o Dell CERC SATA RAID 1.5/6ch
o HP NetRAID 4M
o HP ML110 G2 (Adaptec SATA RAID 2610SA)
o IBM ServeRAID 8k
Access to RAID containers is available via the ld device driver. Individual drives cannot be accessed unless they are part of a container or
volume set, and non-fixed disks cannot be accessed. Containers can be configured by using the on-board BIOS utility of the card.
DIAGNOSTICS
The adapter can send status and alert messages asynchronously to the driver. These messages are printed on the system console.
SEE ALSO
intro(4), ld(4)
HISTORY
The aac driver first appeared in NetBSD 1.6, and was based on the FreeBSD driver of the same name.
BUGS
This driver is not compatible with controllers that have version 1.x firmware. The firmware version is the same as the kernel version
printed in the BIOS POST and driver attach messages.
BSD
February 19, 2011 BSD