How to reduce the capacity of a Storage Pool in FusionStorage

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1. On FusionStorage, choose Resource Pool > Storage Pools.
The Storage Pools page is displayed.
2. Click Capacity Reduction.
The Capacity Reduction page is displayed
Figure 1 Capacity reduction

3. Select the servers to be removed and click Confirm.
After capacity reduction is complete, the Storage Pools page is displayed, which indicates that the FusionStorage storage pool capacity is successfully reduced.

Other related questions:
How to expand capacity of a Storage Pool in FusionStorage
1. On FusionStorage, choose Resource Pool > Storage Pools. The Storage Pools page is displayed. 2. Click Capacity Expansion. The Capacity Expansion page is displayed, as shown in Figure 2. Figure 2 Expanding storage pool capacity 3. Perform operations based on the storage resources to be added. ? To add storage servers, go to Step 4. ? To add disks, go to Step 10. 4. Select Add Storage Server. 5. Click Add Server. A dialog box is displayed. 6. In Main Storage Type and Cache Type areas, configure main storage and cache information for the server to be added. The main storage and cache types of the server must be the same as those of the storage pool. In this step, you are required to configure the slot numbers for main storage and cache resources. You can select main storage and cache resources in either of the following methods: ? Batch selection: Enter the slot numbers or quantity. After the server is added, it automatically uses disks in the specified slots as the main storage or caches. ? Manual selection: After adding the server, manually select main storage and cache resources on the server. 7. In the server list, select the servers to be added to the storage pool. 8. Click Yes. The Capacity Expansion page is displayed. 9. Perform Step 13. 10. Select Add Disk. 11. In the Main Storage Type and Cache Type areas, configure main storage and cache resources to be added on the server. You can select main storage and cache resources in either of the following methods: ? Batch selection: Enter the slot numbers or quantity. The server automatically uses disks in the specified slots as the main storage or caches. ? Manual selection: Manually select main storage and cache resources on the server.

V3 series storage capacity planning
For details about how to plan the capacity of V3 series storage, see Planning the Capacity of V3 Series Storage.

Recommended configuration for storage pools of the OceanStor V3 storage
Recommended configuration for storage pools of OceanStor V3: SAS disks - Mission critical storage: RAID 6 (8D+2P/4D+2P); - Mid-range and entry-level storage: RAID 5 (8D+1P/4D+1P) NL-SAS disks - RAID 6 (8D+2P/4D+2P) SSDs - RAID 10

How to change the information storage capacity of the log buffer on S series switches
For S series switches (except the S1700), run the following commands in the system view to change the storage capacity of the log buffer: -Run the info-center logbuffer size command to configure the maximum number of logs in the log buffer. -Run the info-center trapbuffer size command to configure the maximum number of traps in the trap buffer.

55 TB cache pool of OceanStor 9000
A 55 TB cache pool provides a maximum capacity of 55 TB through theoretical calculations using the following formula: Maximum number of nodes supported (288) x Number of DIMM slots in each node (12) x Capacity of each slot (16 GB) = 55 TB.

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