Re: ASM over SLVM


----- Original Message ----
From: Naqi Mirza <naqimirza@xxxxxxxxx>
To: Job Miller <jobmiller@xxxxxxxxx>
Sent: Thursday, 28 December, 2006 1:52:54 PM
Subject: Re: ASM over SLVM

Well SGeRAC is apparently required by the application vendor. In any case I 
have gone through loads of docs. I have seen the SGeRAC support matrix and now 
11.17 supports ASM, the requirement is ASM over SLVM. It is quite confusing, in 
oracle doc's they say do not use asm disks in SLVM. However the HP docs state 
otherwise for 11.17. 
Thanks

----- Original Message ----
From: Job Miller <jobmiller@xxxxxxxxx>
To: naqimirza@xxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Sent: Thursday, 28 December, 2006 4:56:47 AM
Subject: Re: ASM over SLVM

at one point: 
   
    D) SGeRAC & Oracle ASM for 10gR2 
  •Prior to SGeRAC 11.17, ASM is NOT supported in SG/SGeRAC configurations 
  •HP will support ASM with SGeRAC 11.17 on HP-UX 11.23 in the December ’05 
/January ‘06 timeframe 
  •Only support for RAC 10g R2: 
  −no support for RAC10g R1 
  −no support for single instance 
  −no support for Disaster Tolerant configurations of Oracle ASM with 
SG/SGeRAC 
  •Each ASM disk group member must be a SLVM raw logical volume 
  •SLVM
 provides active/standby multi-pathing support for RAC and single instance 
(“pvlinks”) 
  •Leverage cluster-wide device name feature of SLVM 
  

   
  that same info from HP says consider using the full oracle stack (ie. no SGe 
for RAC) when using ASM.
   
  any good reasons for using SGe and ASM?

Naqi Mirza <naqimirza@xxxxxxxxx>
 wrote:
        Hi,
About to do:
2 Node RAC 10GR2 {10.2.0.2} on HP-UX (Serviceguard extensions for RAC will also 
be used) using ASM for database storage.
I was wondering whether anyone has configured asm over slvm? The rac configs 
that I have been involved in have either had a cluster filesystem in place or 
shared raw partitions. I am not too familiar with slvm, so was wondering how it 
works with asm. My assumption is this. If i have 10 disks that will be used as 
member disks for a diskgroup. Each physical disk will be configured as a 
separate logical volume. These logical volumes will be represented by perhaps 
Disk1....Disk10 - these logical volumes will then in turn serve as member disks 
for asm. Does this sound
 correct?
Thanks

Naqi


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