SEO

I got my hands on a W2100z recently. This is my first workstation and the
first time I've ever used SCSI. It got a U320 Adaptec AIC-7902 controller.
The one SCSI drive in the system is a 73 GB Seagate ST373307LW. It's on
channel B as device ID 0. The cable that's on is the only SCSI cable I have
currently. It has another connector available and I guess what is called a
terminator at the end.

Okay, I can get my hands on an identical SCSI drive--exact same drive. So
I have 2 questions:

1) If I put this in there I should just set it up like the other one,
except jumper it to a device ID other than 0? Also, I read something about
powering the terminator or something, which I assume the other drive is
already doing, so I should set this one to not do this? Does it matter
which one is closest to the terminator? If you have anything to add, please
do--I'm obviously totally lost.

2) In the SCSI setup utility it has a choice that says Host RAID
Enabled/Disabled. It's currently disabled, of course. I don't see anything
that says anything like RAID 0,1,etc., so I wonder what this means. If I
enable that then can I have hardware RAID 0? If so, would it be even better
to get another cable and put the second drive on the A channel?

I'd RTFM, but I can find any docs on this thing on either adaptec's or sun's
site.

Scott wrote:
> I got my hands on a W2100z recently. This is my first workstation and the
> first time I've ever used SCSI. It got a U320 Adaptec AIC-7902 controller.
> The one SCSI drive in the system is a 73 GB Seagate ST373307LW. It's on
> channel B as device ID 0. The cable that's on is the only SCSI cable I have
> currently. It has another connector available and I guess what is called a
> terminator at the end.
>
> Okay, I can get my hands on an identical SCSI drive--exact same drive. So
> I have 2 questions:
>
> 1) If I put this in there I should just set it up like the other one,
> except jumper it to a device ID other than 0? Also, I read something about
> powering the terminator or something, which I assume the other drive is
> already doing, so I should set this one to not do this? Does it matter
> which one is closest to the terminator? If you have anything to add, please
> do--I'm obviously totally lost.
>
> 2) In the SCSI setup utility it has a choice that says Host RAID
> Enabled/Disabled. It's currently disabled, of course. I don't see anything
> that says anything like RAID 0,1,etc., so I wonder what this means. If I
> enable that then can I have hardware RAID 0? If so, would it be even better
> to get another cable and put the second drive on the A channel?
>
> I'd RTFM, but I can find any docs on this thing on either adaptec's or sun's
> site.
>
>


The SCSI RAID device is not currently supported. The release notes
should be updated soon.

Instructions for adding or replacing a drive can be found here:
http://www.sun.com/products-n-soluti...ap4.html#47468

All docs for the W2100z can be found here:
http://www.sun.com/products-n-soluti...ons/index.html


Elias

"Elias" <nospam@charter.net> wrote in message
news:OEsle.16154$cP2.11712@fe06.lga...
> Scott wrote:
>> I got my hands on a W2100z recently. This is my first workstation and
>> the first time I've ever used SCSI. It got a U320 Adaptec AIC-7902
>> controller. The one SCSI drive in the system is a 73 GB Seagate
>> ST373307LW. It's on channel B as device ID 0. The cable that's on is
>> the only SCSI cable I have currently. It has another connector available
>> and I guess what is called a terminator at the end.
>>
>> Okay, I can get my hands on an identical SCSI drive--exact same drive.
>> So I have 2 questions:
>>
>> 1) If I put this in there I should just set it up like the other one,
>> except jumper it to a device ID other than 0? Also, I read something
>> about powering the terminator or something, which I assume the other
>> drive is already doing, so I should set this one to not do this? Does it
>> matter which one is closest to the terminator? If you have anything to
>> add, please do--I'm obviously totally lost.
>>
>> 2) In the SCSI setup utility it has a choice that says Host RAID
>> Enabled/Disabled. It's currently disabled, of course. I don't see
>> anything that says anything like RAID 0,1,etc., so I wonder what this
>> means. If I enable that then can I have hardware RAID 0? If so, would
>> it be even better to get another cable and put the second drive on the A
>> channel?
>>
>> I'd RTFM, but I can find any docs on this thing on either adaptec's or
>> sun's site.
>
>
> The SCSI RAID device is not currently supported. The release notes should
> be updated soon.
>
> Instructions for adding or replacing a drive can be found here:
> http://www.sun.com/products-n-soluti...ap4.html#47468
>
> All docs for the W2100z can be found here:
> http://www.sun.com/products-n-soluti...ons/index.html
>
>
> Elias
>

Thanks. yes, I knew where the general system docs were, and I had
overlooked the part where they discuss using device ID 0 and 1, but they're
still not very specific--basic instructions + refer to the drive
manufacturer's documentation. But the manufacturer doesn't know what
contoller you are using, how many drives you have, etc. so they can't be
too specific either.

I guess I'll just figure it out; Let me ask one final question. If I get
the setup wrong is there any chance of damage?

Scott wrote:

> "Elias" <nospam@charter.net> wrote in message
> news:OEsle.16154$cP2.11712@fe06.lga...
>
>>Scott wrote:
>>
>>>I got my hands on a W2100z recently. This is my first workstation and
>>>the first time I've ever used SCSI. It got a U320 Adaptec AIC-7902
>>>controller. The one SCSI drive in the system is a 73 GB Seagate
>>>ST373307LW. It's on channel B as device ID 0. The cable that's on is
>>>the only SCSI cable I have currently. It has another connector available
>>>and I guess what is called a terminator at the end.
>>>
>>>Okay, I can get my hands on an identical SCSI drive--exact same drive.
>>>So I have 2 questions:
>>>
>>>1) If I put this in there I should just set it up like the other one,
>>>except jumper it to a device ID other than 0? Also, I read something
>>>about powering the terminator or something, which I assume the other
>>>drive is already doing, so I should set this one to not do this? Does it
>>>matter which one is closest to the terminator? If you have anything to
>>>add, please do--I'm obviously totally lost.
>>>
>>>2) In the SCSI setup utility it has a choice that says Host RAID
>>>Enabled/Disabled. It's currently disabled, of course. I don't see
>>>anything that says anything like RAID 0,1,etc., so I wonder what this
>>>means. If I enable that then can I have hardware RAID 0? If so, would
>>>it be even better to get another cable and put the second drive on the A
>>>channel?
>>>
>>>I'd RTFM, but I can find any docs on this thing on either adaptec's or
>>>sun's site.
>>
>>
>>The SCSI RAID device is not currently supported. The release notes should
>>be updated soon.
>>
>>Instructions for adding or replacing a drive can be found here:
>>http://www.sun.com/products-n-soluti...ap4.html#47468
>>
>>All docs for the W2100z can be found here:
>>http://www.sun.com/products-n-soluti...ons/index.html
>>
>>
>>Elias
>>
>
>
> Thanks. yes, I knew where the general system docs were, and I had
> overlooked the part where they discuss using device ID 0 and 1, but they're
> still not very specific--basic instructions + refer to the drive
> manufacturer's documentation. But the manufacturer doesn't know what
> contoller you are using, how many drives you have, etc. so they can't be
> too specific either.
>
> I guess I'll just figure it out; Let me ask one final question. If I get
> the setup wrong is there any chance of damage?
>
>


The only chance of damage is if you try to enable the RAID controller,
i.e. there is probably a reason it is not supported and ships with it off.

Otherwise the worst thing you can do is get conflicting SCSI IDs.

Basically, the docs tell you what ID to use for the bay you are
installing into. You just have to make sure to set the drive to that
ID. Seagate's documentation on setting ID's looks clear to me.
http://www.seagate.com/support/disc/...100195488b.pdf


Elias

"Elias" <nospam@charter.net> wrote in message
news:kctle.1448$fe2.1387@fe02.lga...
> Scott wrote:

>> Thanks. yes, I knew where the general system docs were, and I had
>> overlooked the part where they discuss using device ID 0 and 1, but
>> they're still not very specific--basic instructions + refer to the drive
>> manufacturer's documentation. But the manufacturer doesn't know what
>> contoller you are using, how many drives you have, etc. so they can't be
>> too specific either.
>>
>> I guess I'll just figure it out; Let me ask one final question. If I get
>> the setup wrong is there any chance of damage?
>
>
> The only chance of damage is if you try to enable the RAID controller,
> i.e. there is probably a reason it is not supported and ships with it off.
>
> Otherwise the worst thing you can do is get conflicting SCSI IDs.
>
> Basically, the docs tell you what ID to use for the bay you are installing
> into. You just have to make sure to set the drive to that ID. Seagate's
> documentation on setting ID's looks clear to me.
> http://www.seagate.com/support/disc/...100195488b.pdf
>
>

Yeah, I don't have too much problem with the ID thing, but when they started
talking about powering the terminator via a jumper setting I was starting to
feel a little over my head -- like, does the drive that's powering the
terminator need to be right next to it. At any rate, it looks like I'll
have my new drive in bay 5 on the closest connector to the controller and
set to 1, my current drive in bay 4 on the next connector and set (still) to
0. I think that's about it except for the powering-the-terminator thing.

I'll get it. Thanks much!

Elias <nospam@charter.net> wrote:
> Scott wrote:

>> "Elias" <nospam@charter.net> wrote in message
>>
>>
>> Thanks. yes, I knew where the general system docs were, and I had
>> overlooked the part where they discuss using device ID 0 and 1, but they're
>> still not very specific--basic instructions + refer to the drive
>> manufacturer's documentation. But the manufacturer doesn't know what
>> contoller you are using, how many drives you have, etc. so they can't be
>> too specific either.
>>

> Otherwise the worst thing you can do is get conflicting SCSI IDs.

> Basically, the docs tell you what ID to use for the bay you are
> installing into. You just have to make sure to set the drive to that
> ID. Seagate's documentation on setting ID's looks clear to me.
> http://www.seagate.com/support/disc/...100195488b.pdf

Hmmm.. looks like Sun didn't put the normal/standard SCA+spud
bracket in these eh? That's too bad, it's such a cleaner interface, no
messing with jumpers/termination, no extra power cables/connectors, much
better for hot swapping, etc... Not to mention cheaper aftermarket
SCA drives once they're flooded on to the market as the next drive model
is released.