Description

When the virtual datastore capacity is insufficient, and the HCI node has free disk slots, the storage volume can be expanded by adding disks.

Precautions

1. After replacing the disk, data rebuilding and balance are involved, which will affect the business. It is recommended to operate when the business is idle.
2. If the RAID card of the aServer device is in JBOD mode, the disk supports hot swapping, and the disk can be inserted without shutting down the server.
3. If the RAID card of the aServer device is in RAID 0 mode, the disk does not support hot-swapping, so you need to power off the server and then insert a new disk. Set the single disk to RAID 0 for the new disk, and then perform expansion.
4. After expansion, the following conditions must be met:

• The total capacity of data disks between nodes, the highest and lowest difference, cannot exceed 50%.

• The total number of data disks between nodes and the difference between the maximum and minimum data disks cannot exceed 3.

• The ratio of the cache disk capacity to the data disk capacity of each node cannot be less than 5%, and the difference between the ratios between nodes cannot exceed 5%.

• The ratio of the number of cache disks to mechanical disks in each node is greater than or equal to 1:6.

• In the case of two nodes, the capacity must be the same.

• If the cache disk is added separately, you need to contact Sangfor technical support for the operation after adding it to the interface.

Prerequisites

1. The new disk has been inserted into the node and can be recognized by the platform.
2. Ensure that no tasks are running on the Task Execution page of the virtual storage.

Steps

1. Navigate to Storage > Virtual Storage, and click Expand Capacity.

2. Select Expand Capacity, enter the configuration disk, and select the purpose of the newly discovered disk: data disk, cache disk, spare disk, and not added to the virtual storage.
3. After confirming the configuration, please enter the name of the virtual datastore to be expanded and the administrator password of admin, and click OK.
4. After the disk is expanded, perform a health check to confirm that the platform runs stably.