Re: Oracle ASM and UDEV

From: Andrew Kerber <andrew.kerber_at_gmail.com>
Date: Mon, 16 Feb 2015 07:33:50 -0600
Message-Id: <F7AFC07B-DC35-4E54-81EF-D7FE24BA73E9_at_gmail.com>

I did a blog entry on this in August. See if this helps. Also if you are using VMware vmdk's I think there is an option to generate SCSI id's.

 Find the section in the blog that talks about rhel 7 for the rules:

https://dbakerber.wordpress.com/2014/08/08/udev-rules/

Sent from my iPhone

> On Feb 16, 2015, at 5:59 AM, Ls Cheng <exriscer_at_gmail.com> wrote:
>
> looking the device name it looks like the system is a virtualized guest?
>
> AFIAK scsi_id does not return anything for virtual disks
>
> In OVM Guests for example, this is from a RAC running in OVM, what we do is in vm.cfg we bind the physical disks to xvd* disk in the guest, for example:
>
> disk = ['file:/OVS/Repositories/0004fb00000300008efa6174ff36f936/VirtualDisks/0004fb0000120000788e1d3e6843db80.img,xvda,w', 'phy:/dev/mapper/3600144f0b681e04e0000523abfa90006,xvdb,w!', 'phy:/dev/mapper/3600144f0b681e04e0000523abfbd0007,xvdc,w!', 'phy:/dev/mapper/3600144f0b681e04e0000523abfcb0008,xvdd,w!', 'phy:/dev/mapper/3600144f0b681e04e0000523ac063000a,xvde,w!', 'phy:/dev/mapper/3600144f0b681e04e0000523ac072000b,xvdf,w!', 'phy:/dev/mapper/3600144f0b681e04e0000523ac150000c,xvdg,w!', 'phy:/dev/mapper/3600144f0b681e04e0000523ac160000d,xvdh,w!']
>
> and in the guest udev file we have this
>
> KERNEL=="xvdb1", NAME="asm_crsdata01p1" OWNER="grid", GROUP="asmadmin", MODE="0660"
> KERNEL=="xvdc1", NAME="asm_crsdata02p1" OWNER="grid", GROUP="asmadmin", MODE="0660"
> KERNEL=="xvdd1", NAME="asm_crsdata03p1" OWNER="grid", GROUP="asmadmin", MODE="0660"
> KERNEL=="xvde1", NAME="asm_dgdata01_01p1" OWNER="grid", GROUP="asmadmin", MODE="0660"
> KERNEL=="xvdf1", NAME="asm_dgdata01_02p1" OWNER="grid", GROUP="asmadmin", MODE="0660"
> KERNEL=="xvdg1", NAME="asm_dgfra01_01p1" OWNER="grid", GROUP="asmadmin", MODE="0660"
> KERNEL=="xvdh1", NAME="asm_dgfra01_02p1" OWNER="grid", GROUP="asmadmin", MODE="0660"
>
> in VMWARE yuo can get guest UUID by setting EnableUUID to TRUE but I dont think there is anyway in OVM
>
> You need to ask Amazon what sort of Virtualization they are using
>
>
> Thanks
>
>

>> On Mon, Feb 16, 2015 at 12:42 PM, Out <mufc01666_at_gmail.com> wrote:
>> Hi, 
>> 
>> Thanks for reply.
>> 
>> I tried also what is mentioned  on Oracle document which you send me but result is same again no output.
>> 
>> /usr/lib/udev/scsi_id  --whitelisted --replace-whitespace --device=/dev/xvdj1
>> 
>> ------
>> When I am running blkid I have some output.
>> 
>> blkid
>> /dev/xvda2: UUID="668dbd02-c201-44bc-be76-f606fc9ab8db" TYPE="xfs" PARTUUID="9146b810-9a31-4c10-a206-01b0bbaca807"
>> /dev/xvda3: UUID="4724e874-741e-49a0-8826-58caca0feae7" TYPE="xfs" PARTLABEL="primary" PARTUUID="1229ed73-0343-4233-b2d8-6876162af9c6"
>> /dev/xvdj1: UUID="4b3dd71d-e685-4d1e-9a95-06958dfd4c1f" TYPE="xfs"
>> 
>> So I guess that the problem is not from Amazon EC2......?
>> 
>> 
>> 
>> -----------------
>> Tiran
>> Best Regards
>> Stay in touch...
>> 
>>> On 16 February 2015 at 12:11, Mladen Gogala <dmarc-noreply_at_freelists.org> wrote:
>>> You're doing it wrong. Here is the       right way for EL7:
>>> https://docs.oracle.com/cd/E52668_01/E54669/html/ol7-s19-storage.html
>>> 
>>>> On 02/16/2015 05:43 AM, Out wrote:
>>>> Dear,
>>>> 
>>>> I need to setup ASM. Because I am using  RHEL 7  I cannot find kmod-asm package in repository. I guess is not yet available for RHEL 7 unlike for RHEL 6.6......????
>>>> 
>>>> So I am trying to set up UDEV for ASM. My problem is when I need to get disk id for UDEV rules I get nothing, Command is not returning anything.
>>>> 
>>>> /usr/lib/udev/scsi_id -g -u -d /dev/xvdj1
>>>> 
>>>> 
>>>> My instance is in EC2 in AWS. 
>>>> 
>>>> Can this be because this is EC2 instance or I am doing something wrong.
>>>> 
>>>> Please if someone have experience with this help me.
>>>> 
>>>> Thanks 
>>>> 
>>>>> Aleks
>>>>> Best Regards
>>>>> Stay in touch...
>>> 
>>> 
>>> -- 
>>> Mladen Gogala
>>> Oracle DBA
>>> http://mgogala.freehostia.com

>

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Received on Mon Feb 16 2015 - 14:33:50 CET