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June 11th, 2012 06:00
Powerpath 5.6 p02 and Oracle ASM on 11g which device to use
Hi Guys
Could anyone tell me which emcpower device i should use when creating ASM devices. I have 2 emcpower devices a and b and i have followed the Oracle instructions for creating a partition on the emcpower devices.
Now under /dev i have
emcpowera
emcpowera1
emcpowerb
emcpowerb1
I'm assuming the additional "1" devices are the there because i created a partition could anyone confirm ?
ASM can use the "1" devices but not the original emcpowera and b device's. I can use a force command to use the original devices but i just wanted to see if anyone has come across this before?
Beag
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dynamox
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June 11th, 2012 07:00
yes, it's your partition
pharford57
115 Posts
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June 11th, 2012 07:00
Hi Dynamox
Thanks for the quick reply :-)
yes i follwed the 11gr2 rac prep guide from oracle and created a partition with the specified oracle offset etc.
i now have the emcpowera and emcpowera1 device and the ASM seems to pick up and work correctly with the emcpowera1
does the 1 refer to the "1" partition you cretaed when you fdisk the emcpower device?
beag
dynamox
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20.4K Posts
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June 11th, 2012 07:00
i assume that you fdisk the powerpath device and created an aligned partition, you want to use the partition when you create your ASM device :
$ /etc/init.d/oracleasm createdisk ASMLV119 /dev/emcpowermd1
$ /etc/init.d/oracleasm createdisk ASMLV120 /dev/emcpowerme1