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тАО09-08-2009 02:47 AM
тАО09-08-2009 02:47 AM
Alternatepath of a devic file
I have LUN added to a VG /dev/dsk/c100t6d0
But I forgot to add the alternate path to this vg.
Now there large number lunds adssigned to this server
How do I find alternatepath for this LUN /dev/dsk/c100t6d0
Sagar
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тАО09-08-2009 02:51 AM
тАО09-08-2009 02:51 AM
Re: Alternatepath of a devic file
Hope this helps!
Regards
Torsten.
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тАО09-08-2009 02:59 AM
тАО09-08-2009 02:59 AM
Re: Alternatepath of a devic file
What version of OS you are using:
Hope you are using powerpath,
Check with :
/sbin/powertmt display dev=c100t6d0
And you will see the primary and alternate path of /dev/dsk/c100t6d0
Then you can add using vgextend vg_name
Ex: # vgextend /dev/vg01 /dev/dsk/c100t6d1
Cheers,
Raj.
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тАО09-08-2009 03:05 AM
тАО09-08-2009 03:05 AM
Re: Alternatepath of a devic file
We use PV Links.
The LUNS are presented from the Cx700 clarrion storgae
Sagar
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тАО09-08-2009 06:58 AM
тАО09-08-2009 06:58 AM
Re: Alternatepath of a devic file
which OS version?
Until HP-UX 11iv2 (AFAIK) you can just guess from ioscan which is the alternate path, I mean without still having alternate paths in LVM configuration. When you add them to LVM config. you can see alternate paths of a LUN by pvdisplay.
In HP-UX 11iv3 there's no trouble if you just create/add volume groups with persistent device files (/dev/disk/diskX) which already does assume all paths for the LUN.
HTH.
Best regards,
Fabio