ses device over T-SGPIO

Alan Somers asomers at freebsd.org
Fri Jan 29 21:08:03 UTC 2021


Oh, that means you don't have SGPIO after all.  If you do, you'll see
entries like this:

<WDC WD5000BEVT-00ZAT0 01.01A01>   at scbus0 target 0 lun 0 (pass0,ada0)
<WDC WD30EZRX-00DC0B0 80.00A80>    at scbus1 target 0 lun 0 (pass1,ada1)
<WDC WD30EFRX-68N32N0 82.00A82>    at scbus2 target 0 lun 0 (pass2,ada2)
<AHCI SGPIO Enclosure 2.00 0001>   at scbus6 target 0 lun 0 (ses0,pass3)

On Fri, Jan 29, 2021 at 1:34 PM Slawa Olhovchenkov <slw at zxy.spb.ru> wrote:

> On Fri, Jan 29, 2021 at 10:12:03AM -0700, Alan Somers wrote:
>
> > What does "camcontrol devlist" show?
>
> Only 2 disk: usb-flash and da1 (isci connected)
> (I am currently just boot from 12.2 install)
>
> > On Fri, Jan 29, 2021 at 10:06 AM Slawa Olhovchenkov <slw at zxy.spb.ru>
> wrote:
> >
> > > On Fri, Jan 29, 2021 at 09:51:33AM -0700, Alan Somers wrote:
> > >
> > > > I've never used any tool with SGPIO.  The hardware simply isn't
> powerful
> > > > enough to be useful.  sesutil works, in theory, to control the
> LEDs.  But
> > > > it's of limited usefulness since there's no way to tell which drives
> are
> > > > installed in which slots.
> > >
> > > For me sesutil failed w/ "No SES device found"
> > >
> > > >
> > > > On Fri, Jan 29, 2021 at 9:44 AM Slawa Olhovchenkov <slw at zxy.spb.ru>
> > > wrote:
> > > >
> > > > > On Fri, Jan 29, 2021 at 09:22:47AM -0700, Alan Somers wrote:
> > > > >
> > > > > > The short story is: SGPIO sucks.  It doesn't detect drive
> presence,
> > > much
> > > > > > less provide physical path information.  The only thing you can
> do
> > > with
> > > > > it
> > > > > > is control the fault LEDs.  But doing that usefully requires you
> to
> > > have
> > > > > > some extra source of information about what drives are installed
> in
> > > what
> > > > > > slots.  Basically, you need to track that kind of information
> > > offline.
> > > > > > sesutil ought to be able to control the LEDs, at least, but I've
> > > never
> > > > > > personally used it with SGPIO.
> > > > >
> > > > > What tool you used with SGPIO?
> > > > > What additional drivers need?
> > > > >
> > > > > > On Fri, Jan 29, 2021 at 9:02 AM Slawa Olhovchenkov <
> slw at zxy.spb.ru>
> > > > > wrote:
> > > > > >
> > > > > > > I am have Supermicro MB X9DBU-iF connected to bcakplane
> > > BPN-SAS-825TQ
> > > > > > > by T-SGPIO cables. sesutil don't found any SES device.
> > > > > > >
> > > > > > > Is this posible to have control to this backplane?
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