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cXtYdWsZ - Two targets, one disk???
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Paul  
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 More options May 15, 10:34 am
Newsgroups: comp.unix.solaris
From: Paul <petr...@gmail.com>
Date: Thu, 15 May 2008 07:34:39 -0700 (PDT)
Local: Thurs, May 15 2008 10:34 am
Subject: cXtYdWsZ - Two targets, one disk???
Guys..

Looking the news disks in my system i found this:

            Device                    Product                   Device
---------------------------- ---------------------------
---------------------
Name                  Type   Vendor    ID           Rev  Ser Num
Cap (KB)
---------------------------- ---------------------------
---------------------
(...)
/dev/rdsk/c5t0d0s2           DGC       RAID 5       0326 18000074
12582912
/dev/rdsk/c5t0d1s2           DGC       RAID 5       0326 1A000075
12582912
/dev/rdsk/c5t0d2s2           DGC       RAID 5       0326 1C000075
12582912
/dev/rdsk/c5t0d3s2           DGC       RAID 5       0326 1E000076
12582912
/dev/rdsk/c5t0d4s2           DGC       RAID 5       0326 9F0000A9
50331648
/dev/rdsk/c5t0d5s2           DGC       RAID 5       0326 A10000A9
50331648
(...)
/dev/rdsk/c5t1d0s2           DGC       RAID 5       0326 18000074
12582912
/dev/rdsk/c5t1d1s2           DGC       RAID 5       0326 1A000075
12582912
/dev/rdsk/c5t1d2s2           DGC       RAID 5       0326 1C000075
12582912
/dev/rdsk/c5t1d3s2           DGC       RAID 5       0326 1E000076
12582912
/dev/rdsk/c5t1d4s2           DGC       RAID 5       0326 9F0000A9
50331648
/dev/rdsk/c5t1d5s2           DGC       RAID 5       0326 A10000A9
50331648
(..)

The server is running Solaris 8 SPARC, connected over a HBA to a
Storage.

Looking on the Ser Num and Cap we can see that disks on Controller 5
Target 0 looks like the same on Controller 5 Target 1....

Is that possible?? How should this works??

Tks,


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Rainer Duffner  
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 More options May 15, 10:53 am
Newsgroups: comp.unix.solaris
From: Rainer Duffner <rai...@ultra-secure.de>
Date: Thu, 15 May 2008 14:53:06 GMT
Local: Thurs, May 15 2008 10:53 am
Subject: Re: cXtYdWsZ - Two targets, one disk???
Paul schrieb:

MPIO?
Multipathing?
What storage, BTW?

Rainer


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ndjilinski  
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 More options May 15, 6:38 pm
Newsgroups: comp.unix.solaris
From: ndjilinski <ndjilin...@gmail.com>
Date: Thu, 15 May 2008 15:38:22 -0700 (PDT)
Local: Thurs, May 15 2008 6:38 pm
Subject: Re: cXtYdWsZ - Two targets, one disk???
On May 16, 12:34 am, Paul <petr...@gmail.com> wrote:

I am just wondering - is the host connected to storage directly or
through FC switch?

the storage - it should be EMC (according to vendor ID)?


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Darren Dunham  
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 More options May 15, 6:44 pm
Newsgroups: comp.unix.solaris
From: ddun...@taos.com (Darren Dunham)
Date: Thu, 15 May 2008 22:44:37 GMT
Local: Thurs, May 15 2008 6:44 pm
Subject: Re: cXtYdWsZ - Two targets, one disk???

Paul <petr...@gmail.com> wrote:
> The server is running Solaris 8 SPARC, connected over a HBA to a
> Storage.

"Storage"?  SAN involved here?  

> Looking on the Ser Num and Cap we can see that disks on Controller 5
> Target 0 looks like the same on Controller 5 Target 1....

> Is that possible??

Yes.

> How should this works??

If you have multiple paths from the host to the "disk", then you'll see
multiple entries for it in the device tree.

If your array has two front-end ports, both to a switch, that switch to
the host, all visible via zoning, this this display would be expected.

--
Darren


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Wolfgang  
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 More options May 17, 6:30 am
Newsgroups: comp.unix.solaris
From: Wolfgang <wtra...@AT.web.de>
Date: Sat, 17 May 2008 12:30:42 +0200
Local: Sat, May 17 2008 6:30 am
Subject: Re: cXtYdWsZ - Two targets, one disk???
ndjilinski schrieb:

> I am just wondering - is the host connected to storage directly or
> through FC switch?

> the storage - it should be EMC (according to vendor ID)?

DGC is CLariion, which has two serviceprozessors and maybe is connected
with both to san and have zonings to the same hba.

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Richard B. Gilbert  
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 More options May 17, 6:56 am
Newsgroups: comp.unix.solaris
From: "Richard B. Gilbert" <rgilber...@comcast.net>
Date: Sat, 17 May 2008 06:56:26 -0400
Local: Sat, May 17 2008 6:56 am
Subject: Re: cXtYdWsZ - Two targets, one disk???

Wolfgang wrote:
> ndjilinski schrieb:

>> I am just wondering - is the host connected to storage directly or
>> through FC switch?

>> the storage - it should be EMC (according to vendor ID)?

> DGC is CLariion, which has two serviceprozessors and maybe is connected
> with both to san and have zonings to the same hba.

The last time I looked, almost five years ago, Clarion belonged to EMC^2.

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adjilinsk...@gmail.com  
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 More options May 18, 7:03 am
Newsgroups: comp.unix.solaris
From: adjilinsk...@gmail.com
Date: Sun, 18 May 2008 04:03:26 -0700 (PDT)
Local: Sun, May 18 2008 7:03 am
Subject: Re: cXtYdWsZ - Two targets, one disk???
On May 17, 8:30 pm, Wolfgang <wtra...@AT.web.de> wrote:

> ndjilinski schrieb:

> > I am just wondering - is the host connected to storage directly or
> > through FC switch?

> > the storage - it should be EMC (according to vendor ID)?

> DGC is CLariion, which has two serviceprozessors and maybe is connected
> with both to san and have zonings to the same hba.

to be more accurate (if you would like to tackle the vendors name) -
DGC means Data General Corporation that was acquired by EMC in 1999.
DGC had the mentioned product line called by Clariion. Now, obviously,
it's EMC.

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