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The latest updates on the ASMLib page seems to be early Anyway, first troubleshooting tip is a simple one, but make sure you have all three ASMLib rpms:. So the init. This is actually just a shell script that calls the executables asmscan and asmtool.

Excluding devices and explicitly setting the scanorder can be useful for multipath devices. So this rpm provides you with a library and an executable. Running the executable once you have configured devices is kinda nice:. ELsmp SMP gcc ASMLib likes to work on partitions, you can create this on a device using fdisk.

There is also a neat trick with blkid which shows the disk headers:. You can see from the above, that I have multiple devices corresponding to the same physical device and I am using EMC Powerpath as the multipathing software. Yes, I think the recommended method is to use the emcpower device, however powerpath is clever enough to do the multipathing even if you are not referencing the emcpower device.

I believe there have historically been some issues with ASMLib using the emcpower devices and the solution was to use the non emcpower devices — though you would still get multipathing. There is a good way to filter out some unwanted disktypes.

SAN Hardware not so much. I did some research and found that this is a common problem with multipath devices and to work around it you have to use asmtool. Please use that method to modify this file.

Box hangs have to reboot it…. I have gotten myself to exactly the same point right before clicking OK and here is what is in the ASM alertlog so far. Also a serial console is nice. Also what versions of the packages did you install? Kinda sad as it leads to a lowest common denominator.

ELsmp i also check my asm drivers and this is what i have: rpm -qa grep asm oracleasm Nice blog, i like it, its informative, i will visit his blog more often. Do you have any idea what is wrong? Upon looking at the above output i am under the impression that i installed wrong asmlib rpm.

If i am correct i am still confused on which rpm i installed wrong? I am able to add these diskts to ASM. Everything went cool during adding disks and setting up the ASM instance. Problem occured when creating database using DBCA. This note was really very helpful. I was stuck with another issue where the libasm. Well, to display the ASM luns with corresponding disks, I put a one liner as below.

In this case my ASM is with grid user, hence I logged in as grid user. And this one is on Linux. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. Menu Skip to content. Home Curriculum Vitae jarneil Consulting Ltd.

Anyway, first troubleshooting tip is a simple one, but make sure you have all three ASMLib rpms: rpm -qa grep asm oracleasm-support Share this: Twitter Facebook. Like this: Like Loading Hi Lance, Thanks for reading! We are having this same problem. Hi jason! Hi, Nice write-up. Good Day, John.

Hi Jason Great Blog! I was going to blog about the exact same topic I. Hi John, Thanks! Thanks for this helped me solve my asm issue when provisioning an extra node. Regards Ali. Hello, You need to run through some of the troubleshooting steps outlined above!

Nice blog … I am seeing the following error in my alert log …. Hi sreekanth, You did install the i oracleasm rpm for your machine? Check for module load: lsmod grep oracleasm Anything in dmesg? Here is the layout of my users on the box.

More details …. All rights reserved. Connected to an idle instance. Thanks again. Excellent Notes…thanks for useful info… Regards, Manish Nashikkar. Leave a Reply Cancel reply Enter your comment here Fill in your details below or click an icon to log in:. Email required Address never made public. Name required. By continuing to use this website, you agree to their use. To find out more, including how to control cookies, see here: Cookie Policy.

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ASMLib Troubleshooting

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'multipathd' and disk checker recognizes failed disks later than Oracle ASM

The latest updates on the ASMLib page seems to be early Anyway, first troubleshooting tip is a simple one, but make sure you have all three ASMLib rpms:. So the init. This is actually just a shell script that calls the executables asmscan and asmtool. Excluding devices and explicitly setting the scanorder can be useful for multipath devices. So this rpm provides you with a library and an executable.

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'multipathd' and disk checker recognizes failed disks later than Oracle ASM

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