更换主机后，emc存储识别-凯发app官方网站

[grid@db1-[asm1]-/home/grid]$ ls -l /dev/|grep -e 'emc|asm'|head
drwxr-xr-x 2 root root 100 aug 11 17:14 asmdisk
crw-r--r-- 1 root root 10, 55 aug 11 17:14 emcpower
brw-rw---- 1 grid asmadmin 120, 0 aug 12 09:23 emcpowera
brw-rw---- 1 root disk 120, 416 aug 11 17:14 emcpoweraa
brw-rw---- 1 root disk 120, 432 aug 11 17:14 emcpowerab
brw-rw---- 1 root disk 120, 448 aug 11 17:14 emcpowerac
brw-rw---- 1 root disk 120, 464 aug 11 17:14 emcpowerad
brw-rw---- 1 root disk 120, 480 aug 11 17:14 emcpowerae
brw-rw---- 1 root disk 120, 496 aug 11 17:14 emcpoweraf
brw-rw---- 1 root disk 120, 512 aug 11 17:14 emcpowerag
[grid@db1-[asm1]-/home/grid]$
属主还是root，还未绑定，ocrdg三个新磁盘
[grid@db1-[asm1]-/home/grid]$ kfod disks=all
--------------------------------------------------------------------------------
disk size path user group
================================================================================
1: 10241 mb /dev/asmdisk/ocr01 grid asmadmin
2: 10241 mb /dev/asmdisk/ocr02 grid asmadmin
3: 10241 mb /dev/asmdisk/ocr03 grid asmadmin
--------------------------------------------------------------------------------
oracle_sid oracle_home
================================================================================
root:
export oracle_home=/oracle/app/19.3.0/grid
for i in `ls /dev/emcpow*`; do val=` $oracle_home/bin/kfed read de=$i|grep dskname|awk '{print $2}'`;echo $val $i `/usr/lib/udev/scsi_id -gud $i`; done|sort
识别出设备对应的asm磁盘组，然后进行绑定
for i in `cat /proc/partitions | awk {'print $4'} |grep emcpower`; do val=`/sbin/blockdev --getsize64 /dev/$i` ; val2=`expr $val / 1073741824`; echo "/dev/$i: $val2 `/usr/lib/udev/scsi_id -gud /dev/$i`" ; done
rm -fr /tmp/a.rules
for i in ` grep emcpower /proc/partitions|awk {'print $4'} ` ;
do
echo "kernel==\"emcpower*\",subsystem==\"block\", program==\"/usr/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/\$name\", result==\"`/usr/lib/udev/scsi_id -gud /dev/$i`\", symlink =\"asmdisk/data26\", owner=\"grid\", group=\"asmadmin\", mode=\"0660\" " >> /tmp/a.rules ;
done
cat /tmp/a.rules
确认无误后，将 a.rules中内容合并到现在的udev文件里
/sbin/udevadm control --reload-rules
/sbin/udevadm trigger --type=devices --action=change
grid：
sqlplus / as sysasm
alter diskgroup archdg mount;
alter diskgroup datadg mount;
确认磁盘组状态、大小正常
asmcmd lsdg
state type rebal sector logical_sector block au total_mb free_mb req_mir_free_mb usable_file_mb offline_disks voting_files name
mounted extern n 512 512 4096 1048576 759572 709834 0 709834 0 n archdg/
mounted extern n 512 512 4096 1048576 1450092 350074 0 350074 0 n datadg/
mounted normal n 512 512 4096 4194304 30720 29748 10240 9754 0 y ocrdg/

编辑一个initorcl1.ora文件，启动实例即可。

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