Can I Add a Node Without a 100 GB Data Disk?
No. The 100 GB data disk is mandatory.
After a node is created in a cluster of v1.7.3-r7 or a later version, a 100 GB data disk dedicated for Docker is bound to the node. By default, CCE uses Logical Volume Manager (LVM) to manage data disks. With LVM, you can adjust the disk space ratio for different resources on a data disk. For details, see LVM Overview.
If the data disk is uninstalled or damaged, the Docker service becomes abnormal and the node becomes unavailable.
Figure 1 Data disk for Docker
Parent topic: Storage
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