RE: Adaptec 39160 RAID ?!

RE: Adaptec 39160 RAID ?!

[Rechenberg, Andrew]

The Adaptec 39160 is just a plain SCSI card - the card does not have any
RAID capabilities.

You can use Linux software RAID to create a RAID array with disks
attached to the 39160 (we have 4 our these cards in one of our servers),
but the card does not have any RAID capabilities native.



> -----Original Message-----
> From: linux-raid-owner@vger.kernel.org 
> [mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Thomas Graham
> Sent: Tuesday, February 10, 2004 8:13 AM
> To: linux-raid@vger.kernel.org
> Subject: Adaptec 39160 RAID ?!
> 
> Adaptec 39160 support RAID feature, but how could I config it 
> on linux ?
> Thanks. ( by the way, 39160 is a software or hardware RAID ? )
> -
> To unsubscribe from this list: send the line "unsubscribe 
> linux-raid" in the body of a message to 
> majordomo@vger.kernel.org More majordomo info at  
> http://vger.kernel.org/majordomo-info.html
> 

Re: Adaptec 39160 RAID ?!

[Jeff Garzik]

Rechenberg, Andrew wrote:
> The Adaptec 39160 is just a plain SCSI card - the card does not have any
> RAID capabilities.
> 
> You can use Linux software RAID to create a RAID array with disks
> attached to the 39160 (we have 4 our these cards in one of our servers),
> but the card does not have any RAID capabilities native.


Yes, but doesn't the card ship with "fake RAID"?  i.e. no RAID hardware, 
but BIOS has a RAID array setup utility and thus fools the user into 
thinking he has h/w RAID :)

	Jeff

Re: Adaptec 39160 RAID ?!

[Scott Long]

Jeff Garzik wrote:
> Rechenberg, Andrew wrote:
> 
>>The Adaptec 39160 is just a plain SCSI card - the card does not have
> 
> any
> 
>>RAID capabilities.
>>
>>You can use Linux software RAID to create a RAID array with disks
>>attached to the 39160 (we have 4 our these cards in one of our
> 
> servers),
> 
>>but the card does not have any RAID capabilities native.
> 
> 
> 
> Yes, but doesn't the card ship with "fake RAID"?  i.e. no RAID hardware,
> 
> but BIOS has a RAID array setup utility and thus fools the user into 
> thinking he has h/w RAID :)
> 
> 	Jeff
> 
> 

The Adaptec Ultra160 products do not ship with software/BIOS raid.

Scott

Re: Adaptec 39160 RAID ?!

[Paul Clements]

Jeff Garzik wrote:
> 
> Rechenberg, Andrew wrote:
> > The Adaptec 39160 is just a plain SCSI card - the card does not have any
> > RAID capabilities.
> >
> > You can use Linux software RAID to create a RAID array with disks
> > attached to the 39160 (we have 4 our these cards in one of our servers),
> > but the card does not have any RAID capabilities native.
> 
> Yes, but doesn't the card ship with "fake RAID"?  

No, it's just a plain old Ultra160 Dual Channel SCSI Host Adapter.

--
Paul

Re: Adaptec 39160 RAID ?!

[Luke Rosenthal]

> > Yes, but doesn't the card ship with "fake RAID"?
>
> No, it's just a plain old Ultra160 Dual Channel SCSI Host Adapter.

I just purchased one actually, have hooked it up to a Quantum Atlas 10K2 
and can't seem to get them talking in Ultra160 mode.  Here's the proc 
output:


Adaptec AIC7xxx driver version: 6.2.8
aic7899: Ultra160 Wide Channel B, SCSI Id=0, 32/253 SCBs

Serial EEPROM:
0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 
0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0x43bb 
0xb8f4 0x5d5c 0x2800 0x0010 0xffff 0xffff 0xffff 0xffff 
0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0x0250 0xf4c7 

Channel A Target 0 Negotiation Settings
        User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
[snip snip Targets 1-14, nothing hooked up]
Channel A Target 15 Negotiation Settings
        User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
        Goal: 40.000MB/s transfers (20.000MHz, offset 127, 16bit)
        Curr: 40.000MB/s transfers (20.000MHz, offset 127, 16bit)
        Channel A Target 15 Lun 0 Settings
                Commands Queued 438859
                Commands Active 0
                Command Openings 32
                Max Tagged Openings 32
                Device Queue Frozen Count 0


The drive has a SCA connector on the back, with a sticker on the connector 
stating "Ultra160/LVD/SE".  To connect this drive I've used an adapter 
which converts the SCA connection into a regular 68-pin internal one, then 
used a terminated cable with Ultra160/LVD/SE marked on both the connectors 
(there's 4 of them) AND the terminator.  I've tried turning the internal 
terminator in the Adaptec BIOS on and off with no change.  There's no 
other devices on this bus other than the drive & the host adapter.

Is this normal?  What do "User", "goal" and "curr" mean?  Why are there so 
many commands queued?

Luke.

Re: Adaptec 39160 RAID ?!

[Scott Long]

Luke Rosenthal wrote:
>>>Yes, but doesn't the card ship with "fake RAID"?
>>
>>No, it's just a plain old Ultra160 Dual Channel SCSI Host Adapter.
> 
> 
> I just purchased one actually, have hooked it up to a Quantum Atlas 10K2
> 
> and can't seem to get them talking in Ultra160 mode.  Here's the proc 
> output:
> 
> 
> Adaptec AIC7xxx driver version: 6.2.8
> aic7899: Ultra160 Wide Channel B, SCSI Id=0, 32/253 SCBs
> 
> Serial EEPROM:
> 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 
> 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0x43bb 
> 0xb8f4 0x5d5c 0x2800 0x0010 0xffff 0xffff 0xffff 0xffff 
> 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0x0250 0xf4c7 
> 
> Channel A Target 0 Negotiation Settings
>         User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
> [snip snip Targets 1-14, nothing hooked up]
> Channel A Target 15 Negotiation Settings
>         User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
>         Goal: 40.000MB/s transfers (20.000MHz, offset 127, 16bit)
>         Curr: 40.000MB/s transfers (20.000MHz, offset 127, 16bit)
>         Channel A Target 15 Lun 0 Settings
>                 Commands Queued 438859
>                 Commands Active 0
>                 Command Openings 32
>                 Max Tagged Openings 32
>                 Device Queue Frozen Count 0
> 
> 
> The drive has a SCA connector on the back, with a sticker on the
> connector 
> stating "Ultra160/LVD/SE".  To connect this drive I've used an adapter 
> which converts the SCA connection into a regular 68-pin internal one,
> then 
> used a terminated cable with Ultra160/LVD/SE marked on both the
> connectors 
> (there's 4 of them) AND the terminator.  I've tried turning the internal
> 
> terminator in the Adaptec BIOS on and off with no change.  There's no 
> other devices on this bus other than the drive & the host adapter.
> 

For whatever reason, the bus is running in single ended mode.  I don't
have a guide to the 10k2 handy (and google is turning up empty), but it
might either be jumpered wrong, or you might have a cabling issue.  You
might also want to check that the SCA<->68 pin coverter isn't
responsible.

> Is this normal?  What do "User", "goal" and "curr" mean?

User is what the BIOS is set to
Goal is the best that we think that we can get
Curr is what we are actually running at

> Why are there so many commands queued?

This is just a cummulative count since the system booted.

Scott

RE: Adaptec 39160 RAID ?!

[Guy]

I have 2 types of 68-80 pin SCA adapters.
1 has AT on the end on the model number.  These also have resister packs.
This is a single ended adapter.  It would not support LVD.

The others have LS at the end of the model number.  No resister packs, and
are LVD.

SE can do 40 MB/s.
LVD can do 80/160/320 MB/s depending on your hardware.
I don't think my SCA adapters were designed for 160, since my hardware can
only do 80 I don't care.

So, check your 68-80 adapters.

Also, most LVD SCSI disks have a "force SE" jumper.  Be sure you don't have
this set.  If you do, your disks would be in single ended mode, and limited
to 40 MB/s.  If the URL below is correct, you disk also has this jumper.

Maxtor bought Quantum, or part of it.

http://www.maxtor.com/en/documentation/pdf_jumper_settings/atlas_10k_jumpers
.pdf

Guy

-----Original Message-----
From: linux-raid-owner@vger.kernel.org
[mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Scott Long
Sent: Tuesday, February 10, 2004 9:33 PM
To: Luke Rosenthal
Cc: linux-raid@vger.kernel.org
Subject: Re: Adaptec 39160 RAID ?!

Luke Rosenthal wrote:
>>>Yes, but doesn't the card ship with "fake RAID"?
>>
>>No, it's just a plain old Ultra160 Dual Channel SCSI Host Adapter.
> 
> 
> I just purchased one actually, have hooked it up to a Quantum Atlas 10K2
> 
> and can't seem to get them talking in Ultra160 mode.  Here's the proc 
> output:
> 
> 
> Adaptec AIC7xxx driver version: 6.2.8
> aic7899: Ultra160 Wide Channel B, SCSI Id=0, 32/253 SCBs
> 
> Serial EEPROM:
> 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 
> 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0xc33a 0x43bb 
> 0xb8f4 0x5d5c 0x2800 0x0010 0xffff 0xffff 0xffff 0xffff 
> 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0x0250 0xf4c7 
> 
> Channel A Target 0 Negotiation Settings
>         User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
> [snip snip Targets 1-14, nothing hooked up]
> Channel A Target 15 Negotiation Settings
>         User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
>         Goal: 40.000MB/s transfers (20.000MHz, offset 127, 16bit)
>         Curr: 40.000MB/s transfers (20.000MHz, offset 127, 16bit)
>         Channel A Target 15 Lun 0 Settings
>                 Commands Queued 438859
>                 Commands Active 0
>                 Command Openings 32
>                 Max Tagged Openings 32
>                 Device Queue Frozen Count 0
> 
> 
> The drive has a SCA connector on the back, with a sticker on the
> connector 
> stating "Ultra160/LVD/SE".  To connect this drive I've used an adapter 
> which converts the SCA connection into a regular 68-pin internal one,
> then 
> used a terminated cable with Ultra160/LVD/SE marked on both the
> connectors 
> (there's 4 of them) AND the terminator.  I've tried turning the internal
> 
> terminator in the Adaptec BIOS on and off with no change.  There's no 
> other devices on this bus other than the drive & the host adapter.
> 

For whatever reason, the bus is running in single ended mode.  I don't
have a guide to the 10k2 handy (and google is turning up empty), but it
might either be jumpered wrong, or you might have a cabling issue.  You
might also want to check that the SCA<->68 pin coverter isn't
responsible.

> Is this normal?  What do "User", "goal" and "curr" mean?

User is what the BIOS is set to
Goal is the best that we think that we can get
Curr is what we are actually running at

> Why are there so many commands queued?

This is just a cummulative count since the system booted.

Scott

-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Adaptec 39160 RAID ?!

[Thomas Graham]

Adaptec 39160 support RAID feature, but how could I config it on linux ?
Thanks. ( by the way, 39160 is a software or hardware RAID ? )