LSI SAS HBAs (mps) utility

[Alan Somers]

On Tue, Mar 11, 2014 at 10:45 AM, Borja Marcos <borjam at sarenet.es> wrote:
>
> On Mar 11, 2014, at 5:35 PM, Alan Somers wrote:
>
>> What do you mean, it doesn't find the "real" slots?  What are you
>> expecting to see?  Do you have a SAS expander in this system?  If so,
>> you have some hope of seeing useful information about the physical
>> position of a drive.  If not, then you won't get much better than
>> knowing which SAS port is connected to a drive.
>
> I just notice that, since I flashed the card (A Dell H200) to so-called "IT Mode" it doesn't show the expanders.
>
> This is what I saw before flashing the card:
> Feb 12 10:01:33 pruebassd kernel: ses0 at mps0 bus 0 scbus0 target 3 lun 0
> Feb 12 10:01:33 pruebassd kernel: ses0: <DP BP12G+ 1.00> Fixed Enclosure Services SCSI-5 device
> Feb 12 10:01:33 pruebassd kernel: ses0: 150.000MB/s transfers
> Feb 12 10:01:33 pruebassd kernel: ses0: Command Queueing enabled
> Feb 12 10:01:33 pruebassd kernel: ses0: SCSI-3 ENC Device
>
> And now, same hardware, different firmware, I don't see the "ses0" expander, odd.

Surprising.  What does "camcontrol devlist" show you?

>
> Anyway, I pulled one of the disks (physical slot 4) and it wasn't the disk identified by sas2ircu as connected to "1:4" but
> a different one.

What do you mean by "physical slot 4"?  The HBA doesn't know anything
about physical positions.  Even the SES expander probably isn't
numbering the slots in the order that you expect.

>
> That I mean. Chaos... ;)

I'm having trouble understanding your English.  What does this sentence mean?

-Alan

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> Borja.
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