One of the advantages of Solaris 10 FC drivers is that MPXio can present
1 target for the two paths. This feature is coming RSN to vxdmp. So
consider disabling vxdmp and let native Solaris do the multipathing with
"stmsboot -e".

 

 

=================

Dana Hudes

UNIX and Imaging group

NYC-HRA MIS

+1 718 510 8586

Nextel:  172*26*16684

=================

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Asim
Zuberi
Sent: Wednesday, February 27, 2008 9:55 AM
To: 'Sundaram Ramasamy'; veritas-vx@mailman.eng.auburn.edu
Subject: Re: [Veritas-vx] Issue with EMC SAN LUN Multipath

 

Hi SR --

 

I don't see this as an issue. Apparently, you have two controllers
(HBAs) on the host. At OS level, they show-up as "c43" and "c35".

The target "t18" is what you have defined in the "sd.conf" file. The
disk "d27" is the assigned from the SAN. It is the same disk across

each controllers. That's why you only had to labeled once on one path
and not on both paths. 

 

Do "vxdisk -e list" and see if this disk "d27" is displayed twice?

 

Hope this helps,

--Asim;

 


  _____  


From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sundaram
Ramasamy
Sent: Tuesday, February 26, 2008 6:17 PM
To: veritas-vx@mailman.eng.auburn.edu
Subject: [Veritas-vx] Issue with EMC SAN LUN Multipath

Hi all,

 

We are adding new ECM SYMMETRIX LUN our Solaris 9 server. According to
SAN team LUN's zoned and masked for this host with two paths.

 

We updated lpfc.conf and sd.conf rebooted the server. We are able to
see this LUNs in format. If we make the label change on one path we
are able to view it on other path.

 

The problem is its giving different serial number on each path. Since
serial number is different Veritas thinks its two different disks. We
check with Storage engineers, they said configuration looks good on
their side. We don't have access to SAN configuration. We can run
SYMCLI commands from host.

 

I would like to know why we are getting different serial number for
same disk. Where the configuration mismatches server side or host
side?. Can we use SYMCLI command to check SAN configuration?  If
problem with SAN side, what information I need ask SAN engineers to
check?

 

Any troubleshooting tips will help.

 

Here some more information.

 

First path:
=======

 

HBA: ....3f1
Sym Dev                                               LUN
Name    Dir:P  Physical Device Name     VBUS  TID  SYMM HOST  Attr
Cap(MB)
------  -----  -----------------------  ----  ---  ---- ----  ----
-------
0721    14B:1  /dev/vx/rdmp/c43t18d27s2     0    0   1b   1b
30468

 

Second path:
=========

 

HBA: ....64d2
Sym Dev                                               LUN
Name    Dir:P  Physical Device Name     VBUS  TID  SYMM HOST  Attr
Cap(MB)
------  -----  -----------------------  ----  ---  ---- ----  ----
-------
0721     3B:1  /dev/vx/rdmp/c35t18d27s2     0    0   1b   1b
30468

 


Inquiry for /dev/rdsk/c43t18d27s2, evpd 0x0, page code 0x0
Vendor id : EMC
Product id : SYMMETRIX
Revision : 5771
Serial Number : 17721301Q

 

Inquiry for /dev/rdsk/c35t18d27s2, evpd 0x0, page code 0x0
Vendor id : EMC
Product id : SYMMETRIX
Revision : 5771
Serial Number : 17721191Q

 

Thanks

-SR

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