红帽全球峰会第 20 章 Removing storage devices
You can safely remove a storage device from a running system, which helps prevent system memory overload and data loss.
Do not remove a storage device on a system where:
- Free memory is less than 5% of the total memory in more than 10 samples per 100.
-
Swapping is active (non-zero
siandsocolumns in thevmstatcommand output).
20.1. Prerequisites
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Before you remove a storage device, ensure that you have enough free system memory due to the increased system memory load during an I/O flush. Use the following commands to view the current memory load and free memory of the system:
# vmstat 1 100 # free
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