Shulou(Shulou.com)06/01 Report--

1 confirm the new shared disk

According to the new 1T storage information provided by the cloud platform, it is as follows:

Enter the command in the operating system: fdisk-l verify that both dsc nodes can recognize the following information:

10.194.215.8 the shared drive letter is sde and the size is 1000G

10.194.215.9 the shared drive letter is sdf and the size is 1000G.

2 Edit bare device binding file

Edit / etc/udev/rules.d/60-raw.rules, add the information of the shared disk based on the original.

10.194.215.8 nodes are configured as follows:

Vim / etc/udev/rules.d/60-raw.rules

ACTION== "add", KERNEL== "sdb1", RUN+= "/ bin/raw / dev/raw/raw1 N"

ACTION== "add", KERNEL== "sdb2", RUN+= "/ bin/raw / dev/raw/raw2 N"

ACTION== "add", KERNEL== "sdb3", RUN+= "/ bin/raw / dev/raw/raw3 N"

ACTION== "add", KERNEL== "sdb4", RUN+= "/ bin/raw / dev/raw/raw4 N"

ACTION== "add", KERNEL== "sdc", RUN+= "/ bin/raw / dev/raw/raw5 N"

ACTION== "add", KERNEL== "sdd", RUN+= "/ bin/raw / dev/raw/raw6 N"

ACTION== "add", KERNEL== "sde", RUN+= "/ bin/raw / dev/raw/raw7 N"

KERNEL== "raw [1-7]", OWNER= "dmdba", GROUP= "dinstall", MODE= "660"

Note: the red part needs to be added or modified.

10.194.215.9 nodes are configured as follows:

Vim / etc/udev/rules.d/60-raw.rules

ACTION== "add", KERNEL== "sdb1", RUN+= "/ bin/raw / dev/raw/raw1 N"

ACTION== "add", KERNEL== "sdb2", RUN+= "/ bin/raw / dev/raw/raw2 N"

ACTION== "add", KERNEL== "sdb3", RUN+= "/ bin/raw / dev/raw/raw3 N"

ACTION== "add", KERNEL== "sdb4", RUN+= "/ bin/raw / dev/raw/raw4 N"

ACTION== "add", KERNEL== "sdd", RUN+= "/ bin/raw / dev/raw/raw5 N"

ACTION== "add", KERNEL== "sde", RUN+= "/ bin/raw / dev/raw/raw6 N"

ACTION== "add", KERNEL== "sdf", RUN+= "/ bin/raw / dev/raw/raw7 N"

KERNEL== "raw [1-7]", OWNER= "dmdba", GROUP= "dinstall", MODE= "660"

3 binding of bare devices

10.194.215.8 the node executes the following command to complete the binding of the bare device:

Partprobe / dev/sde

/ sbin/udevadm trigger-type=devices-action=change

/ sbin/udevadm control-- reload-rules

Start_udev

10.194.215.9 Node executes the following command to complete the binding of the bare device:

Partprobe / dev/sdf

/ sbin/udevadm trigger-type=devices-action=change

/ sbin/udevadm control-- reload-rules

Start_udev

Finally, check whether the bare device is bound successfully with the following command:

-- command to view the size of the bare device

Blockdev-getsize64 / dev/raw/raw5

-- check whether the binding of the bare device is successful, and whether the permission owner is dmdba and the group is dinstall.

Ll / dev/raw

4 create ASM disk

One of the nodes in the dsc cluster initializes the disk using the DMASMCMD tool, initializing the new bare device / dev/raw/raw5 as an ASM disk.

Cd / opt/dmdbms/bin

. / dmasmcmd

Create asmdisk'/ dev/raw/raw7' 'DATA07'

Note: DATA07 can be named according to the actual situation.

5 add the newly added ASM disks to the ASM disk group

Use the dmasmtool tool to add the newly initialized ASM disk to the disk group that has insufficient space, this time to join the DMDATA disk group.

Su-dmdba

Cd / opt/dmdbms/bin

. / dmasmtool DCR_INI=/opt/dmdbms/config/dmdcr.ini

Alter diskgroup 'DMDATA' add asmdisk' / dev/raw/raw7'

6 check the ASM disk group space and confirm that the addition is successful

After adding asm disks to the specified disk group, be sure to check the size of the disk group and confirm that the size is the size of the added asm disk.

Cd / opt/dmdbms/bin

. / dmasmtool DCR_INI=/opt/dmdbms/config/dmdcr.ini

Lsdg

Find the DMDATA disk group to confirm the size, or you can create a new test tablespace to further confirm that the addition was successful.

7 restart the dmap service

After expanding the disk, you need to restart the dmap service, otherwise the backup based on the backup set will fail.

/ etc/init.d/DmAPService restart

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