Re: Disk mapping for oracle ASM

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Also, as far as libraries are concerned, I've installed the asm libs for
2.6.164, and then upgraded to 2.6.194 and it didn't give me any issues. I
did upgrade the library after the fact just to be safe, but so long as you
keep an eye on it I think you should be fine. Oracle has a vested interest
in keeping the library up to date with the latest kernel since their distro
of linux is basically rebranded red hat.

On Sat, Dec 4, 2010 at 1:12 PM, Matty Sarro <msarro@xxxxxxxxx> wrote:

> Your best bet is to let ASM handle it. Create the disk in fdisk, and then
> add it in ASM - simple, fast, and easy. Raw mappings have been deprecated
> for some time, and they were kind of pointless to begin with since linux
> never really properly implemented the buffering techniques used by other
> *nix OS's AFAIK. Further, ASM is better over the long run because managing a
> ton of raw disks can get annoying over time, and its a lot more featureful.
>
> Just my $.02
>
> -Matty
>
>
> On Sat, Dec 4, 2010 at 10:31 AM, raj sourabh <rajsourabh1@xxxxxxxxx>wrote:
>
>> Hey,
>>
>> Thanks for information.
>>
>> Yes I am deploying RAC.
>>
>> Raw devices are prefereable as oracle asm relies on libs. But heard that
>> rawdevices as getting obsolete after RHEL 5.5 onwards :(
>>
>> Regards,
>>
>> Raj
>>
>>
>>
>> On Sat, Dec 4, 2010 at 2:22 PM, Wahyu Darmawan <wahyu@xxxxxxxxxxxxxx>
>> wrote:
>>
>> > Hi Raj,
>> >
>> > I assume you'll going to install RAC, isn't it?
>> > AFAIK, there are no more method to you use of disk configuration for
>> Oracle
>> > db.
>> > Both method are efficient for production environment.
>> > So, you may choose one of them or combined.
>> > Those are supported by Oracle.
>> >
>> > Regards,
>> > Wahyu
>> >
>> > raj sourabh <rajsourabh1@xxxxxxxxx> wrote:
>> >
>> > >Hi All,
>> > >
>> > >I wanted to know what are ways one can use local/SAN disks for oracle
>> > >installation. I am familier about two;
>> > >
>> > >* Map the physical disk path to raw device .. eg. raw
>> /dev/mapper/mpath1
>> > >/dev/raw/raw1
>> > >* Or use oracle ASM library and tool for disk mapping
>> > >
>> > >Are there other ways too?? And which one is efficient for production
>> > >environment.
>> > >
>> > >Regards
>> > >Raj
>> > >--
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