Kurt Miller intricatesoftware.com> writes:
>
> On Thu, 2014-02-06 at 18:56 -0500, Kurt Miller wrote:
> > Various sources indicate that LSI's SAS2008 controllers support TRIM
> > when running their IT firmware (LSI [1] and this list [2]). However, I
> > have not been able to get it working with D
I can report that the Samsung 840 Pro *does* support trim on the LSI
SAS2008. As suspected it supports deterministic read zeros after trim.
One other thing to note, in my testing the P16 LSI firmware has broken
trim support. P14 and P15 report incorrect values for
/sys/block/sdX/queue/discard_gran
On Fri, 2014-02-07 at 20:24 -0500, Martin K. Petersen wrote:
> > "Kurt" == Kurt Miller writes:
>
> Kurt> # hdparm -I /dev/sdc
>
> [...]
>
> I don't see any deterministic read after trim/read zero after trim
> support on your drive. And I have a sneaking suspicion that those are
> two of th
> "Kurt" == Kurt Miller writes:
Kurt> # hdparm -I /dev/sdc
[...]
I don't see any deterministic read after trim/read zero after trim
support on your drive. And I have a sneaking suspicion that those are
two of the fields that the LSI firmware looks at when deciding whether
to support logica
On Fri, 2014-02-07 at 15:59 -0500, Martin K. Petersen wrote:
> > "Kurt" == Kurt Miller writes:
> Kurt>provisioning: lbpme=0, lbprz=0 Last logical block
>^^^
>
> This indicates the SAT on the mpt2sas board didn't enable discard
> support for the drive.
>
> Plea
> "Kurt" == Kurt Miller writes:
Kurt> Thank you for your reply. Below is the output you requested. Note
Kurt> that when the EVO's are connected to a SATA AHCI port on my
Kurt> desktop motherboard, TRIM works okay. Please let me know if you
Kurt> need additional information.
Kurt>provisio
On Fri, 2014-02-07 at 15:44 -0500, Martin K. Petersen wrote:
> > "Kurt" == Kurt Miller writes:
>
> Kurt> Is TRIM working for anyone using LSI SAS2008 controllers?
>
> Yes. But its SAT appears to be somewhat selective about which devices it
> flags as capable.
>
> Please send me the output o
On Thu, 2014-02-06 at 18:56 -0500, Kurt Miller wrote:
> Various sources indicate that LSI's SAS2008 controllers support TRIM
> when running their IT firmware (LSI [1] and this list [2]). However, I
> have not been able to get it working with Dell PERC H200 or H310 cross
> flashed into LSI IT firmwa
> "Kurt" == Kurt Miller writes:
Kurt> Is TRIM working for anyone using LSI SAS2008 controllers?
Yes. But its SAT appears to be somewhat selective about which devices it
flags as capable.
Please send me the output of:
# sg_readcap -l /dev/sdc
# sg_vpd -p bl /dev/sdc
# sg_vpd -p lbpv /dev/sd
Various sources indicate that LSI's SAS2008 controllers support TRIM
when running their IT firmware (LSI [1] and this list [2]). However, I
have not been able to get it working with Dell PERC H200 or H310 cross
flashed into LSI IT firmware. Currently I'm testing with Samsung 840 EVO
SATA SSDs. I ha
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