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Editor to share with you how to view the udev correspondence of the asm disk in Oracle RAC, I believe most people do not know much about it, so share this article for your reference. I hope you will gain a lot after reading this article. Let's learn about it together.

[root@test ~] # cd / etc/udev/rules.d

[root@test rules.d] # cat 99-oracle-asmdevices.rules

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc42a82ce5701000000", NAME= "crs1", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc40f1fd15701000000", NAME= "crs2", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc44e22d15701000000", NAME= "crs3", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc49625d15701000000", NAME= "crs4", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc4f429d15701000000", NAME= "crs5", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc4f529d15701000000", NAME= "data1", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc4f629d15701000000", NAME= "data2", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc4f729d15701000000", NAME= "data3", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc4f829d15701000000", NAME= "fra1", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

KERNEL== "sd*", SUBSYSTEM== "block", PROGRAM== "/ sbin/scsi_id-whitelisted-replace-whitespace-device=/dev/$name", RESULT== "3600c0ff00027efc4f929d15701000000", NAME= "fra2", OWNER= "grid", GROUP= "asmadmin", MODE= "0660"

[root@test rules.d] # ll

Total 56

-rw-r--r-- 1 root root 190 Sep 9 2016 55-usm.rules

-rw-r--r--. 1 root root 1652 Aug 26 2010 60-fprint-autosuspend.rules

-rw-r--r--. 1 root root 1060 Jun 29 2010 60-pcmcia.rules

-rw-r--r--. 1 root root 316 Jan 9 2013 60-raw.rules

-rw-r--r--. 1 root root 789 May 31 2016 70-persistent-cd.rules

-rw-r--r-- 1 root root 671 Sep 2 2016 70-persistent-net.rules

-rw-r--r-- 1 root root 40 Jan 24 2013 80-kvm.rules

-rw-r--r--. 1 root root 320 Sep 12 2012 90-alsa.rules

-rw-r--r--. 1 root root 83 Apr 1 2011 90-hal.rules

-rw-r--r--. 1 root root 2486 Jun 30 2010 97-bluetooth-serial.rules

-rw-r--r--. 1 root root 292 Jan 18 2013 98-kexec.rules

-rw-r--r--. 1 root root 54 Nov 3 2011 99-fuse.rules

-rw-r--r-- 1 root root 2163 Sep 9 2016 99-oracle-asmdevices.rules

-rw-r--r-- 1 root root 341 Aug 8 2017 99-vmware-scsi-udev.rules

[root@test sbin] # cd / dev/disk/

[root@test disk] # ls

By-id by-path by-uuid

[root@test disk] # cd by-id

[root@test by-id] # ll

Total 0

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 dm-name-bak-lv01->.. /.. / dm-2

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 dm-name-vg_db-lv_db1->.. /.. / dm-0

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 dm-name-vg_db-lv_swap->.. /.. / dm-1

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 dm-uuid-LVM-4r5uYRBHslmlhae5r2KYuVmikyIq9IeElMko3qUmkQcApM4qWJIcSDFDYnkwMns5->.. /.. / dm-1

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 dm-uuid-LVM-4r5uYRBHslmlhae5r2KYuVmikyIq9IeEyfYsKoNPchVN9Ll6ekez5hgTxrvoOvKY->.. /.. / dm-0

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 dm-uuid-LVM-LBV3iw8kSBcWNNx9dnGgbxTV2rACPkowsjQ4qNv217o4zNTcEeybSM2ajMUrtNSK->.. /.. / dm-2

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 scsi-3600c0ff00027efc40f1fd15701000000->.. / sdi

Lrwxrwxrwx 1 root root 9 Dec 25 15:47 scsi-3600c0ff00027efc42a82ce5701000000->.. / sdh

Lrwxrwxrwx 1 root root 9 Dec 29 15:49 scsi-3600c0ff00027efc44e22d15701000000->.. /.. / sdj

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 scsi-3600c0ff00027efc49625d15701000000->.. / sdk

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 scsi-3600c0ff00027efc4f429d15701000000->.. / sdl

Lrwxrwxrwx 1 root root 9 Dec 25 16:05 scsi-3600c0ff00027efc4f529d15701000000->.. / sdb

Lrwxrwxrwx 1 root root 9 Dec 26 02:04 scsi-3600c0ff00027efc4f629d15701000000->.. /.. / sdc

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 scsi-3600c0ff00027efc4f729d15701000000->.. / sdd

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 scsi-3600c0ff00027efc4f829d15701000000->.. / sde

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 scsi-3600c0ff00027efc4f929d15701000000->.. / sdf

Lrwxrwxrwx 1 root root 9 Dec 6 09:20 scsi-3600c0ff00027efc4fa29d15701000000->.. /.. / sdg

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 scsi-3600c0ff00027efc4fa29d15701000000-part1->.. /.. / sdg1

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 wwn-0x600c0ff00027efc40f1fd15701000000->.. / sdi

Lrwxrwxrwx 1 root root 9 Dec 25 15:47 wwn-0x600c0ff00027efc42a82ce5701000000->.. / sdh

Lrwxrwxrwx 1 root root 9 Dec 29 15:49 wwn-0x600c0ff00027efc44e22d15701000000->.. /.. / sdj

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 wwn-0x600c0ff00027efc49625d15701000000->.. / sdk

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 wwn-0x600c0ff00027efc4f429d15701000000->.. / sdl

Lrwxrwxrwx 1 root root 9 Dec 25 16:05 wwn-0x600c0ff00027efc4f529d15701000000->.. / sdb

Lrwxrwxrwx 1 root root 9 Dec 26 02:04 wwn-0x600c0ff00027efc4f629d15701000000->.. /.. / sdc

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 wwn-0x600c0ff00027efc4f729d15701000000->.. / sdd

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 wwn-0x600c0ff00027efc4f829d15701000000->.. / sde

Lrwxrwxrwx 1 root root 9 Dec 25 15:24 wwn-0x600c0ff00027efc4f929d15701000000->.. / sdf

Lrwxrwxrwx 1 root root 9 Dec 6 09:20 wwn-0x600c0ff00027efc4fa29d15701000000->.. /.. / sdg

Lrwxrwxrwx 1 root root 10 Dec 6 09:20 wwn-0x600c0ff00027efc4fa29d15701000000-part1->.. /.. / sdg1

Check the udev of the asm disk by comparing the scsi sequence number.

The above is all the contents of the article "how to View the udev correspondence of asm disks in Oracle RAC". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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