Re: How to Locate drive directly attached to mpt3sas HBA

[Jack Wang]

2018-03-19 18:44 GMT+01:00 James Bottomley
:
> On Mon, 2018-03-19 at 17:30 +0100, Jack Wang wrote:
>> >
>> >
>> > >
>> > > And I think either mpt2sas and/or mpt3sas HBAs (I don't have my
>> > > hardware
>> > > nearby) have a SMP target hidden away somewhere. Perhaps someone
>> > > from
>> > > LSI/Avago/Broadcom could supply more information about that.
>>
>> Indeed, mpt3sas has internal enclosure some how.
>> snip from  "sas3ircu 0 display" output:
>> Device is a Hard disk
>>   Enclosure # : 1
>>   Slot #  : 4
>>   SAS Address : 4433221-1-0400-
>>   State   : Ready (RDY)
>>
>> And it's possible to locate it using "sas3ircu 0 locate 1:4 ON" to
>> locate the drive.
>
> The fat firmware eats pretty much all trace of the enclosure.  I think
> it could be exposed as a device, but that would disrupt the mpt3sas
> internal handling if our Linux enclosure service also binds to it.
>
> James
>
Agree, they're doing a lot in FW.

Regards,
Jack

Re: How to Locate drive directly attached to mpt3sas HBA

[James Bottomley]

On Mon, 2018-03-19 at 17:30 +0100, Jack Wang wrote:
> > 
> > 
> > > 
> > > And I think either mpt2sas and/or mpt3sas HBAs (I don't have my
> > > hardware
> > > nearby) have a SMP target hidden away somewhere. Perhaps someone
> > > from
> > > LSI/Avago/Broadcom could supply more information about that.
> 
> Indeed, mpt3sas has internal enclosure some how.
> snip from  "sas3ircu 0 display" output:
> Device is a Hard disk
>   Enclosure # : 1
>   Slot #  : 4
>   SAS Address : 4433221-1-0400-
>   State   : Ready (RDY)
> 
> And it's possible to locate it using "sas3ircu 0 locate 1:4 ON" to
> locate the drive.

The fat firmware eats pretty much all trace of the enclosure.  I think
it could be exposed as a device, but that would disrupt the mpt3sas
internal handling if our Linux enclosure service also binds to it.

James

Re: How to Locate drive directly attached to mpt3sas HBA

[Jack Wang]

>
>> And I think either mpt2sas and/or mpt3sas HBAs (I don't have my hardware
>> nearby) have a SMP target hidden away somewhere. Perhaps someone from
>> LSI/Avago/Broadcom could supply more information about that.

Indeed, mpt3sas has internal enclosure some how.
snip from  "sas3ircu 0 display" output:
Device is a Hard disk
  Enclosure # : 1
  Slot #  : 4
  SAS Address : 4433221-1-0400-
  State   : Ready (RDY)

And it's possible to locate it using "sas3ircu 0 locate 1:4 ON" to
locate the drive.

Thanks,
Jack

Re: How to Locate drive directly attached to mpt3sas HBA

[Jack Wang]

2018-03-19 15:20 GMT+01:00 Douglas Gilbert :
> On 2018-03-19 11:40 AM, Jack Wang wrote:
>>
>> Hi list,
>>
>> Any one knows how can I locate a HDD directly attached to mpt3sas,
>> sas3ircu only supports LOCATE commd to locates driver installed in a
>> disk enclosure, but not directly attached.
>>
>> I know microsemi/PMCs supports SGPIO interface to locate drive eg:
>>   Adp80xxapp sgpio 0 set 0 1
>>
>> I searched in latest upstream mpt3sas code, didn't find such
>> interface. Do I miss something?
>
>
> Hi,
> If its a SAS disk, it might have an onboard LED.
>
> In the sdparm package there is a script called "sas_disk_blink"
> that will flash that LED.
>
>

> And I think either mpt2sas and/or mpt3sas HBAs (I don't have my hardware
> nearby) have a SMP target hidden away somewhere. Perhaps someone from
> LSI/Avago/Broadcom could supply more information about that.
>
> Doug Gilbert
>
Thanks Doug for your information, we're interested mainly on SATA  SSD
from Intel.
I hope Broadcom could shed some light.

The HBA is Serial Attached SCSI controller: LSI Logic / Symbios Logic
SAS3008 PCI-Express Fusion-MPT SAS-3 (rev 02)

Regards,
Jack

Re: How to Locate drive directly attached to mpt3sas HBA

[James Bottomley]

On Mon, 2018-03-19 at 15:20 +0100, Douglas Gilbert wrote:
> On 2018-03-19 11:40 AM, Jack Wang wrote:
> > 
> > Hi list,
> > 
> > Any one knows how can I locate a HDD directly attached to mpt3sas,
> > sas3ircu only supports LOCATE commd to locates driver installed in
> > a
> > disk enclosure, but not directly attached.
> > 
> > I know microsemi/PMCs supports SGPIO interface to locate drive eg:
> >   Adp80xxapp sgpio 0 set 0 1
> > 
> > I searched in latest upstream mpt3sas code, didn't find such
> > interface. Do I miss something?
> 
> Hi,
> If its a SAS disk, it might have an onboard LED.
> 
> In the sdparm package there is a script called "sas_disk_blink"
> that will flash that LED.
> 
> 
> And I think either mpt2sas and/or mpt3sas HBAs (I don't have my
> hardware nearby) have a SMP target hidden away somewhere. Perhaps
> someone from LSI/Avago/Broadcom could supply more information about
> that.

And if mpt3sas just used the standard Linux SES infrastructure, you'd
find the disk in sysfs linked to the slot along with a nice sysfs file
you can write to to flash the locator light.

James

Re: How to Locate drive directly attached to mpt3sas HBA

[Douglas Gilbert]

On 2018-03-19 11:40 AM, Jack Wang wrote:

Hi list,

Any one knows how can I locate a HDD directly attached to mpt3sas,
sas3ircu only supports LOCATE commd to locates driver installed in a
disk enclosure, but not directly attached.

I know microsemi/PMCs supports SGPIO interface to locate drive eg:
  Adp80xxapp sgpio 0 set 0 1

I searched in latest upstream mpt3sas code, didn't find such
interface. Do I miss something?


Hi,
If its a SAS disk, it might have an onboard LED.

In the sdparm package there is a script called "sas_disk_blink"
that will flash that LED.


And I think either mpt2sas and/or mpt3sas HBAs (I don't have my hardware
nearby) have a SMP target hidden away somewhere. Perhaps someone from
LSI/Avago/Broadcom could supply more information about that.

Doug Gilbert

How to Locate drive directly attached to mpt3sas HBA

[Jack Wang]

Hi list,

Any one knows how can I locate a HDD directly attached to mpt3sas,
sas3ircu only supports LOCATE commd to locates driver installed in a
disk enclosure, but not directly attached.

I know microsemi/PMCs supports SGPIO interface to locate drive eg:
 Adp80xxapp sgpio 0 set 0 1

I searched in latest upstream mpt3sas code, didn't find such
interface. Do I miss something?

Thanks,
Jack