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List:       opensolaris-sysadmin-discuss
Subject:    Re: [sysadmin-discuss] Re: Solaris 10 and StorEdge C4 LTO-3 +
From:       Dale Ghent <daleg () elemental ! org>
Date:       2007-03-06 16:32:05
Message-ID: D3095DDD-6232-4F14-9606-69AE55CE3B69 () elemental ! org
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On Mar 5, 2007, at 10:32 AM, David Olsen wrote:

> Hi,
>
> Tape devices do not multipath.  Months ago, (at the time we were  
> running  Solaris 10, Update 1,)  I had to dedicate fp interfaces to  
> the tape drive, as I wanted to multipath to the disk arrays  
> (3510's).  I don't know if the situation has changed at Solaris 10  
> Update 3.

I'm running S10u3 on a server that has one dual port qlogic card. I  
have multipath'd disks (to a 6140) that stores Legato index  
information. This server also accesses its LTO3 drives and the media  
changer device out of one of the two FC ports.

What I did was I set up two zones on the FC switch that this server  
is connected to. One zone contains the 6140's port and the two FC  
ports on the server. The other zone contains the tape and media  
changer ports, and only one of the FC ports on the server.

The end result is that I have multipathed disk LUNs, and non- 
multipathed tape and media changer devices without having to resort  
to purchasing a second card just for tape devices:

[root@bs1]~> cfgadm -al -o show_FCP_dev
Ap_Id                          Type         Receptacle   Occupant      
Condition
c2                             fc-fabric    connected    configured    
unknown
c2::2000005013002fb3,0         med-changer  connected    configured    
unknown
c2::2000005013002fb3,1         processor    connected    configured    
unknown
c2::200400a0b826ada9,0         disk         connected    configured    
unknown
c2::200400a0b826ada9,31        disk         connected    configured    
unknown
c2::200400a0b826adaa,0         disk         connected    configured    
unknown
c2::200400a0b826adaa,31        disk         connected    configured    
unknown
c2::200500a0b826ada9,0         disk         connected    configured    
unknown
c2::200500a0b826ada9,31        disk         connected    configured    
unknown
c2::200500a0b826adaa,0         disk         connected    configured    
unknown
c2::200500a0b826adaa,31        disk         connected    configured    
unknown
c2::200600a0b826d53b,31        disk         connected    configured    
unknown
c2::200600a0b826d53c,31        disk         connected    configured    
unknown
c2::200700a0b826d53b,31        disk         connected    configured    
unknown
c2::200700a0b826d53c,31        disk         connected    configured    
unknown
c2::500507631240c790,0         tape         connected    configured    
unknown
c2::500507631240eaf4,0         tape         connected    configured    
unknown
c2::500507631240ec57,0         tape         connected    configured    
unknown
c2::5005076312414de1,0         tape         connected    configured    
unknown
c3                             fc-fabric    connected    configured    
unknown
c3::200400a0b826ada9,0         disk         connected    configured    
unknown
c3::200400a0b826ada9,31        disk         connected    configured    
unknown
c3::200400a0b826adaa,0         disk         connected    configured    
unknown
c3::200400a0b826adaa,31        disk         connected    configured    
unknown
c3::200500a0b826ada9,0         disk         connected    configured    
unknown
c3::200500a0b826ada9,31        disk         connected    configured    
unknown
c3::200500a0b826adaa,0         disk         connected    configured    
unknown
c3::200500a0b826adaa,31        disk         connected    configured    
unknown
c3::200600a0b826d53b,31        disk         connected    configured    
unknown
c3::200600a0b826d53c,31        disk         connected    configured    
unknown
c3::200700a0b826d53b,31        disk         connected    configured    
unknown
c3::200700a0b826d53c,31        disk         connected    configured    
unknown




/dale
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