RE: Clusterware 11.2.0.2 - identifying devices

From: Amaral, Rui <Rui.Amaral_at_tdsecurities.com>
Date: Mon, 21 Mar 2011 08:00:21 -0400
Message-ID: <1B861F1ABE40A84AA92AD585B20C558B26F808CCB5_at_EX7T2-CV06.TDBFG.COM>



Major numbers are specific to the device type and shouldn't change on a reboot. Minors are dynamically allocated to the devices and can change on reboot after reconfigurations.

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of LS Cheng Sent: Monday, March 21, 2011 5:52 AM
To: Freek.DHooge_at_uptime.be
Cc: avramil_at_concentric.net; oracle-l_at_freelists.org Subject: Re: Clusterware 11.2.0.2 - identifying devices

Just wondering, can major and minor number change when the storage is reconfigured? For example addking new disks or remove and readd?

I am asking because mknod relies on minor and major numbers, would like to know if these number are persistent even after storage reconfiguration.

Thanks!

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LSC On Fri, Mar 18, 2011 at 3:57 PM, D'Hooge Freek <Freek.DHooge_at_uptime.be<mailto:Freek.DHooge_at_uptime.be>> wrote: Most of the time I use mknod to create character devices (which I can name) from the disks and modify the asm_disktring parameter to look at the directory holding the character devices.

Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge_at_uptime.be<mailto:freek.dhooge_at_uptime.be> tel +32(0)3 451 23 82<tel:%2B32%280%293%20451%2023%2082> http://www.uptime.be
disclaimer: www.uptime.be/disclaimer<http://www.uptime.be/disclaimer>

-----Original Message-----

From: oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org> [mailto:oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>] On Behalf Of Lou Avrami Sent: vrijdag 18 maart 2011 15:34
To: oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org> Subject: Clusterware 11.2.0.2 - identifying devices

Hello all,

I've encountered a challenge installing 11.2.0.2 RAC on a NetApp FiberSan. I thought I would run it by oracle-l and see if anyone might have a solution.

I was doing an advanced installation of RAC 11.2.0.2 on a 2-node Solaris 10 configuration. This is for a data warehouse application for a vendor, with 80 TBs of storage for the database.

I start the installer, input the SCAN address, set up the virtual IPs and SSH connectivity, then come to the "Create ASM Disk Group" screen. The top of the screen populates the name of the disk group as DATA, there are radio buttons for redundancy, then there is a box with all of the devices under /dev/rdsk, with checkboxes to the left. It looks like there are at least 6 screens of these devices. The list looks like this:

             Device                                   Size MB
- /dev/rdsk/c10t60A98000486E6476575A62584A594C66d0s2 2091473 - /dev/rdsk/c10t60A98000486E6476575A62584A612D76d0s2 2097152 ....

I have a list of devices and what disk groups I want to assign them to ... but trying to pick device names out of a list of dozens like the ones above in an X-Windows screen is proving to be just about impossible.

Any ideas would be greatly appreciated.
Should I be looking at a response file? I've never used a response file for a Clusterware installation.

Thanks,
Lou Avrami
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http://www.freelists.org/webpage/oracle-l Received on Mon Mar 21 2011 - 07:00:21 CDT

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