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Solution to Failure to Recognize Elastic Cloud Disks in Some Existing CVM Instances

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Última atualização: 2022-09-29 17:28:10
After elastic cloud disks are released, their hot swapping operations are supported by current CVM instance images.
Note:
Before unmounting a disk, run the umount command (Linux) or set it to offline status (Windows); otherwise, it may not be recognized when mounted the next time.
If you have purchased CVM instances in the following list and plan to add elastic cloud disks to them, we recommend you run the modprobe acpiphp command before purchasing elastic cloud disks, so that a driver can be added to enable the hot swapping feature.
CVM Instance Operating System
Version
CentOS
5.11 64-bit
5.11 32-bit
5.8 64-bit
5.8 32-bit
Debian
6.0.3 32-bit
Ubuntu
10.04 64-bit
10.04 32-bit
openSUSE
12.3 64-bit
12.3 32-bit

In addition, if you need to load the acpiphp driver module again after shutting down or restarting the CVM instance, we recommend you configure automatic acpiphp loading at startup. The detailed directions for different systems are as follows:

CentOS 5 series

Run the following command to create a file.
vi /etc/sysconfig/modules/acpiphp.modules
Add the following content to the file:
 #!/bin/bash
 modprobe acpiphp >& /dev/null
Run the following command to add execution permissions, after which the script can be loaded at startup:
chmod a+x /etc/sysconfig/modules/acpiphp.modules

Debian 6 series and Ubuntu 10.04 series

Run the following command to modify the file.
vi /etc/modules
Write the following content:
acpiphp

openSUSE 12.3 series

Run the following command to modify the file.
vi /etc/sysconfig/kernel
Write the following content:
MODULES_LOADED_ON_BOOT="acpiphp"

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