Op de NetApp aanmaken van Vol’s, Lun’s en desgewenst Qtree’s:
Volume aanmaken;
Name: ORA_DATA_01
Security style: UNIX
Thin Provisioned: UIT (uitgevinkt)
Storage Efficiency: DISABLED
Size: 80 GB
Advanced: enkel AAN (aangevinkt) Update access time when a file is read
% USED: 80%
Resultaat ziet er als volgt uit;
Name: ORA_DATA_01
Status: Online
Maximum Files: 2.49m
Current Files: 105
Language: en (English)
Unicode: Disabled
Qtree aanmaken (niet noodzakelijk oude gewoonte):
Name: ora_data_01
Volume: ORA_DATA_01
Oplocks: UIT (uitgevinkt)
Security Style: UNIX
Lun aanmaken:
Name: ora_data_01.lun
Description: Ora_Rac
Type: Linux
Size: 64 GB
Thin Provisioned: UIT (uitgevinkt)
Initiator Group Name: ASM_RAC (LUN ID (optional) leeg laten)
Resultaat ziet er als volgt uit;
Name: ora_data_01.lun
Container Path: /vol/ORA_DATA_01/ora_data_01
Size: 64 GB
Status: Online
Type: Linux
Serial No: 7T-Kd?E4WiRZ
Description: Ora_Rac
In de RAC omgeving op de NODE1 uitvoeren.
LET OP: de /dev/s.. namen zijn/kunnen per node anders zijn tussen de NODE2, NODE3 en NODE1. Zo valt op dat bij NODE2 de benaming /dev/sdb1: LABEL=”DATA_1″ bij de andere 2 node’s als volgt is, /dev/sda1: LABEL=”DATA_1″.
Login op de NODE1 als ROOT
[root@NODE1 ~]# iscsiadm -m session –rescan
[root@NODE1 ~]# ls -l /dev/disk/by-path
total 0
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-0 -> ../../sda
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-1 -> ../../sdb
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-10 -> ../../sdk
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-10-part1 -> ../../sdk1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-11 -> ../../sdl
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-11-part1 -> ../../sdl1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-12 -> ../../sdm
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-12-part1 -> ../../sdm1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-13 -> ../../sdn
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-13-part1 -> ../../sdn1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-14 -> ../../sdo
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-14-part1 -> ../../sdo1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-15 -> ../../sdp
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-15-part1 -> ../../sdp1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-16 -> ../../sdq
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-16-part1 -> ../../sdq1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-17 -> ../../sdr
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-17-part1 -> ../../sdr1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-18 -> ../../sds
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-18-part1 -> ../../sds1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-19 -> ../../sdt
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-19-part1 -> ../../sdt1
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-1-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-2 -> ../../sdc
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-20 -> ../../sdu
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-20-part1 -> ../../sdu1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-21 -> ../../sdv
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-21-part1 -> ../../sdv1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-22 -> ../../sdw
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-22-part1 -> ../../sdw1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-23 -> ../../sdx
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-23-part1 -> ../../sdx1
lrwxrwxrwx 1 root root 9 Dec 8 11:00 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-24 -> ../../sdy
lrwxrwxrwx 1 root root 10 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-24-part1 -> ../../sdy1
lrwxrwxrwx 1 root root 9 Dec 8 11:00 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-25 -> ../../sdz
lrwxrwxrwx 1 root root 10 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-25-part1 -> ../../sdz1
lrwxrwxrwx 1 root root 10 Dec 8 11:00 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-26 -> ../../sdaa
lrwxrwxrwx 1 root root 11 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-26-part1 -> ../../sdaa1
lrwxrwxrwx 1 root root 10 Dec 8 11:00 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-27 -> ../../sdab
lrwxrwxrwx 1 root root 11 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-27-part1 -> ../../sdab1
lrwxrwxrwx 1 root root 10 Dec 8 11:00 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-28 -> ../../sdac
lrwxrwxrwx 1 root root 11 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-28-part1 -> ../../sdac1
lrwxrwxrwx 1 root root 10 Dec 8 11:00 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-29 -> ../../sdad
lrwxrwxrwx 1 root root 11 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-29-part1 -> ../../sdad1
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-2-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-3 -> ../../sdd
lrwxrwxrwx 1 root root 10 Dec 8 11:00 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-30 -> ../../sdae
lrwxrwxrwx 1 root root 11 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-30-part1 -> ../../sdae1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-4 -> ../../sde
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-4-part1 -> ../../sde1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-5 -> ../../sdf
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-5-part1 -> ../../sdf1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-6 -> ../../sdg
lrwxrwxrwx 1 root root 10 Dec 8 11:33 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-6-part1 -> ../../sdg1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-7 -> ../../sdh
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-7-part1 -> ../../sdh1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-8 -> ../../sdi
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-8-part1 -> ../../sdi1
lrwxrwxrwx 1 root root 9 Aug 25 07:26 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-9 -> ../../sdj
lrwxrwxrwx 1 root root 10 Aug 25 07:27 ip-172.17.17.5:3260-iscsi-iqqn.2016-08.com.netapp:sn.101186186-lun-9-part1 -> ../../sdj1
[root@NODE1 ~]# fdisk /dev/sdy (ook voor ../../sdz, ../../sdaa, ../..sdab, ../../sdac, ../../sdad, ../../sdae)
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won’t be recoverable.
The number of cylinders for this disk is set to 30720.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
software that runs at boot time (e.g., old versions of LILO)
booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help):
m
n voor add a new partition
p primary partition
1 Partition number (1-4)
First Cylinder DEFAULT
Last Cylinder DEFAULT
w write is toepassen en resync
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@NODE1 ~]# ls -l /dev/disk/by-path
[root@NODE1 ~]# oracleasm listdisks
CRS
DATA_1
DATA_10
DATA_2
DATA_3
DATA_4
DATA_5
DATA_6
DATA_7
DATA_8
DATA_9
[root@NODE1 ~]#
oracleasm createdisk ORA_DATA_01 /dev/sdy1
oracleasm createdisk ORA_DATA_02 /dev/sdz1
oracleasm createdisk ORA_DATA_03 /dev/sdaa1
oracleasm createdisk ORA_DATA_04 /dev/sdab1
oracleasm createdisk ORA_DATA_05 /dev/sdac1
oracleasm createdisk ORA_DATA_06 /dev/sdad1
oracleasm createdisk ORA_DATA_07 /dev/sdae1
Writing disk header: done
Instantiating disk: done
Desgewenst de status opvragen:
ls /dev/sd*
ls -l /dev/disk/by-path
oracleasm listdisks
oracleasm querydisk /dev/sd*1
/sbin/blkid | grep oracleasm
Uitvoeren op NODE1, NODE2 en NODE3
[root@NODE1 ~]# oracleasm scandisks
[root@NODE1 ~]# iscsiadm -m session –rescan
[root@NODE2 ~]# oracleasm scandisks
[root@NODE2 ~]# iscsiadm -m session –rescan
[root@NODE3 ~]# oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks…
Scanning system for ASM disks…
Instantiating disk “ORA_DATA_01”
Instantiating disk “ORA_DATA_02”
Instantiating disk “ORA_DATA_03”
Instantiating disk “ORA_DATA_04”
Instantiating disk “ORA_DATA_05”
Instantiating disk “ORA_DATA_06”
Instantiating disk “ORA_DATA_07″
[root@NODE3 ~]# iscsiadm -m session –rescan
Rescanning session [sid: 1, target: iqqn.2016-08.com.netapp:sn.101186186, portal: 172.17.17.5,3260] [root@NODE3 ~]# ls -l /dev/disk/by-path
LET OP: een niet gebruikte ander mogelijkheid voor het STEMPEN.
iscsiadm -m session -r SID –rescan[10]
SID per node:
iqqn.2016-05.com.redhat:NODE3
iqqn.2016-05.com.redhat:NODE1
iqqn.2016-05.com.redhat:NODE2
iscsiadm -m discovery -t st -p target_IP -o new
Inloggen in Cloud Control Enterprise manager.
Op de SR1710 ga via AllTargets ga naar +ASM node [NODE1] DiskGroups kies GROUP <DATA> en login bij ASM met SYS as ASMDBA.
Kies vervolgens ADD disk:
Vinkjes bij de disks en kijk met Show SQL
ALTER DISKGROUP DATA ADD
DISK ‘/dev/oracleasm/disks/ORA_DATA_02’ NAME ORA_DATA_02 SIZE 65530 M
DISK ‘/dev/oracleasm/disks/ORA_DATA_03’ NAME ORA_DATA_03 SIZE 65530 M
DISK ‘/dev/oracleasm/disks/ORA_DATA_04’ NAME ORA_DATA_04 SIZE 65530 M
DISK ‘/dev/oracleasm/disks/ORA_DATA_05’ NAME ORA_DATA_05 SIZE 65530 M
DISK ‘/dev/oracleasm/disks/ORA_DATA_06’ NAME ORA_DATA_06 SIZE 65530 M
DISK ‘/dev/oracleasm/disks/ORA_DATA_07′ NAME ORA_DATA_07 SIZE 65530 M
REBALANCE POWER 0
Return
Kies YES
LET OP: REBALANCE POWER 0
VERWIJDEREN VAN DISKEN IN ASM, LINUX EN NETAPP!!!
Op de SR1710 Cloud Control Enterprise Manager:
Vink de disk aan die je wilt REMOVEN
Kies Advance en REBALANCE POWER 1
Show SQL
ALTER DISKGROUP DATA DROP DISK DATA_0000
Return
Kies YES
REBALANCE zal worden uitgevoerd duurt heeeeeel lang.
Op de NODE1:
[root@NODE1 ~]# /sbin/blkid | grep oracleasm
LET OP: de /dev/s.. namen zijn/kunnen per node anders zijn tussen de NODE2, NODE3 en NODE1. Zo valt op dat bij NODE2 de benaming /dev/sdb1: LABEL=”DATA_1″ bij de andere 2 node’s als volgt is, /dev/sda1: LABEL=”DATA_1″.
/dev/sdc1: LABEL=”CRS” TYPE=”oracleasm”
/dev/sdb1: LABEL=”DATA_2″ TYPE=”oracleasm”
/dev/sde1: LABEL=”DATA_4″ TYPE=”oracleasm”
/dev/sdf1: LABEL=”DATA_5″ TYPE=”oracleasm”
/dev/sdg1: LABEL=”DATA_6″ TYPE=”oracleasm”
/dev/sdh1: LABEL=”DATA_7″ TYPE=”oracleasm”
/dev/sdi1: LABEL=”DATA_8″ TYPE=”oracleasm”
/dev/sdj1: LABEL=”DATA_9″ TYPE=”oracleasm”
/dev/sdk1: LABEL=”DATA_10″ TYPE=”oracleasm”
/dev/sdl1: LABEL=”DATA_11″ TYPE=”oracleasm”
/dev/sdm1: LABEL=”DATA_12″ TYPE=”oracleasm”
/dev/sdn1: LABEL=”DATA_13″ TYPE=”oracleasm”
/dev/sdo1: LABEL=”DATA_14″ TYPE=”oracleasm”
/dev/sdp1: LABEL=”DATA_15″ TYPE=”oracleasm”
/dev/sdq1: LABEL=”DATA_16″ TYPE=”oracleasm”
/dev/sdr1: LABEL=”DATA_17″ TYPE=”oracleasm”
/dev/sds1: LABEL=”DATA_18″ TYPE=”oracleasm”
/dev/sdt1: LABEL=”DATA_19″ TYPE=”oracleasm”
/dev/sdu1: LABEL=”DATA_20″ TYPE=”oracleasm”
/dev/sdv1: LABEL=”DATA_21″ TYPE=”oracleasm”
/dev/sdw1: LABEL=”DATA_22″ TYPE=”oracleasm”
/dev/sdx1: LABEL=”DATA_23″ TYPE=”oracleasm”
/dev/sdy1: LABEL=”ORA_DATA_01″ TYPE=”oracleasm”
/dev/sda1: LABEL=”DATA_1″ TYPE=”oracleasm”
/dev/sdz1: LABEL=”ORA_DATA_02″ TYPE=”oracleasm”
/dev/sdaa1: LABEL=”ORA_DATA_03″ TYPE=”oracleasm”
/dev/sdab1: LABEL=”ORA_DATA_04″ TYPE=”oracleasm”
/dev/sdac1: LABEL=”ORA_DATA_05″ TYPE=”oracleasm”
/dev/sdad1: LABEL=”ORA_DATA_06″ TYPE=”oracleasm”
/dev/sdae1: LABEL=”ORA_DATA_07″ TYPE=”oracleasm”
[root@NODE1 ~]#
Haal met FDISK de partitie’s weg:
[root@NODE1 ~]# fdisk /dev/sdd
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won’t be recoverable.
The number of cylinders for this disk is set to 30720.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
software that runs at boot time (e.g., old versions of LILO)
booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help):
m
d voor delete a partition
1 Partition number (1-4)
w write is toepassen en resync
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
Controleren met:
[root@NODE1 ~]# /sbin/blkid | grep oracleasm
Of
[root@NODE1 ~]# ls -l /dev/disk/by-path
[root@NODE1 ~]# iscsiadm -m session –rescan (ook op NODE2 & NODE3)
Rescanning session [sid: 1, target: iqqn.2016-08.com.netapp:sn.101186186, portal: 172.17.17.5,3260] LET OP: gebruik bij het verwijderen derhalve de LABEL naam!!!
Op de NODE1 verwijder na FDISK de disk by LABEL:
[root@NODE1 ~]# oracleasm deletedisk -v DATA_3
Controleren met:
[root@NODE1 ~]# /sbin/blkid | grep oracleasm
Of
[root@NODE1 ~]# ls -l /dev/disk/by-path
[root@NODE1 ~]# iscsiadm -m session –rescan
Rescanning session [sid: 1, target: iqqn.2016-08.com.netapp:sn.101186186, portal: 172.17.17.5,3260] [root@NODE2 ~]# oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks…
Cleaning disk “DATA_3”
Scanning system for ASM disks…
[root@NODE2 ~]# ls -l /dev/disk/by-path
[root@NODE3 ~]# oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks…
Cleaning disk “DATA_3”
Scanning system for ASM disks…
[root@NODE3 ~]# ls -l /dev/disk/by-path
Extra aandachts punten:
Als je een disk hebt ge-dropped van een ASM diskgroup met (vermoedelijk zonder dat je met FDISK de partitie hebt verwijderd):
ALTER DISKGROUP DATA01 DROP DISK DISK1;
En na een rebalance probeer je en delete krijg je onderstaande melding:
# oracleasm deletedisk -v DISK1
Clearing disk header: oracleasm-write-label: Unable to open device “/dev/oracleasm/disks/DISK1”:
Device or resource busy failed
Unable to clear disk “DISK1”
The system details: 11.2.0.1 2-node RAC
Dan kan het navolgende helpen dit op te lossen:
First of all, I checked that there were no extents on DISK1.
$ . oraenv
ORACLE_SID = [+ASM1] ?
SQL> select PXN_KFFXP, — physical extent number
XNUM_KFFXP, — virtual extent number
DISK_KFFXP, — disk number
AU_KFFXP — allocation unit number
from X$KFFXP
where DISK_KFFXP=1;
no rows selected
I cleared the disk header by dd:
# dd if=/dev/zero of=/dev/oracleasm/disks/DISK1 bs=1024 count=100
100+0 records in
100+0 records out
102400 bytes (102 kB) copied, 0.000156 seconds, 656 MB/s
Note: My allocation unit is 1MB that is why I am using bs=1024.
Then deleted disk by oracleasm:
# oracleasm deletedisk DISK1
# oracleasm scandisks <–Do this step on all nodes
TIPS & TRICKS:
http://docs.oracle.com/cd/E11882_01/server.112/e18951/asmdiskgrps.htm#OSTMG94106 http://dba.stackexchange.com/questions/57113/oracleasm-deletedisk-failed-unable-to-clear-disk
