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SubjectRe: HighPoint RocketRaid 620 vs. RocketRaid 640 -- supported?
On Wed, Sep 21, 2011 at 07:28:26AM -0400, Justin Piszcz wrote:
> Hi,
> Incase anyone is wondering the same thing, I contacted Highpoint and they
> said (confirmed) the 620 support (which I am using now) is built-in to
> the kernel and the 640 is not, so unless you like compiling kernel
> modules/out of tree drivers for a _boot_ volume and want a regular SATA
> 6.0gbps controller that supports TRIM, I'd go for the 620 even though it
> maxes out around 390-420MiB/s read where a real SAS controller supports
> 490-500MiB/s for an Intel 510 SSD, but remember, SAS controllers (at
> least the one I tested with does not support TRIM and there is no Intel
> SSD optimizer for Linux.

Hmm.. does SAS "SCSI UNMAP" automatically get translated to
ATA TRIM if you hook up SATA disk to SAS HBA ?

Is the ATA<->SCSI translation being done by the HBA firmware,
or is it handled in the driver?

-- Pasi (who is too lazy to grep in the driver right now ;)

> Justin.
> On Mon, 19 Sep 2011, Justin Piszcz wrote:
>> Hi,
>> I have a HighPoint RocketRaid 620 and it works fine with 3.0+.
>> The HighPoint RocketRaid 640 also has a Marvell 88SE9128, can anyne
>> confirm whether this (x4) PCI-e 2.0 card works in Linux with the
>> built-in kernel driver?
>> Justin.
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