RE: powerpath, 11gr2, and ASM on sun Sparc

  • From: "Amaral, Rui" <Rui.Amaral@xxxxxxxxxxxxxxxx>
  • To: "'andrew.kerber@xxxxxxxxx'" <andrew.kerber@xxxxxxxxx>, Harel Safra <harel.safra@xxxxxxxxx>
  • Date: Thu, 24 Feb 2011 14:36:38 -0500

the following note I think explains the issue a little:
 
Device Persistence and Oracle Linux ASMLib [ID 394959.1]
 
Read between the lines and you'll see that the issue of permissions across 
reboots goes both ways. I mentioned it in a previous thread that using 
something like udev or other tools like securepath and powerpath is more about 
assignment rather than persistence.
 
Good luck Andrew - I know what it's like.

Rui Amaral
Database Administrator
ITS - SSG
TD Bank Financial Group
220 Bay St., 11th Floor
Toronto, ON, CA, M5K1A2
(bb) (647) 204-9106
 
 

________________________________

From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of Andrew Kerber
Sent: Thursday, February 24, 2011 2:13 PM
To: Harel Safra
Cc: litanli@xxxxxxxxx; ORACLE-L
Subject: Re: powerpath, 11gr2, and ASM on sun Sparc


I mean until we somehow got our ASM header overwritten or corrupted, this was 
11gR2.


On Thu, Feb 24, 2011 at 1:06 PM, Harel Safra <harel.safra@xxxxxxxxx> wrote:


        Up to 11.1 (including) you needed the voting disks and OCR disks to be 
the same. In 11.2 you can store them in ASM so that's not needed. I've run many 
Linux servers with 10g RAC on them that only had the voting/OCR identical and 
the data disks different. I've also installed 11.2 cluster with no regard to 
disk order. 

        What do you mean by "until we got asm headers stepped on"?

        Harel Safra 


        On Thu, Feb 24, 2011 at 8:58 PM, Andrew Kerber 
<andrew.kerber@xxxxxxxxx> wrote:
        

                Thats what I always thought too until we got asm headers 
stepped on.  There are also many notes about how to map the drives using 
multipath so they show up in the same spot on both nodes.  Just not much on 
Powerpath.  So I suspect this business of reading the headers doesn't always 
work for some reason. 





-- 
Andrew W. Kerber

'If at first you dont succeed, dont take up skydiving.'

 
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