Applicable Products
- QuTS hero h5.3.0 or later
- High Availability Manager
- Storage Manager
Scenario
You have deployed a high-availability (HA) cluster with shared storage, and a current storage pool is running low on capacity. The system may have issued a warning about low storage space.
To accommodate growing data or performance requirements, you need to expand the storage pool. Since your system is in an HA environment, any modification to shared storage must be handled carefully to avoid service interruption or triggering failover.
Solution
You can replace disks one by one. Follow these steps:
Important
Replacing disks one by one temporarily removes RAID redundancy protection. Please proceed with caution.
- Identify the RAID group in the storage pool you want to expand.
- Go to Storage Manager > Storage Space.
- Identify the storage pool to expand.
- Under Action, click
> Manage, and then go to the RAID tab.
Storage Manager displays the RAID groups in the storage pool, and the disks used by each RAID group.
- Verify that the RAID group's RAID type is RAID 1, 5, or 6.
Note
Only these RAID types currently support expansion by replacing disks one by one.
- Disable all spare disks assigned to the RAID group.
- Go to Storage Manager > Disks > Disk.
- Identify the spare disk.
- Under Action, click
> Disable Spare.
- Note down all disk slots used by the RAID group.
Tip
To check the disk slots used by the RAID group, go back to
Storage Manager > Storage Space, identify the storage pool, click
> Manage, and then go to the
RAID tab.
- On the passive node, replace the disks one at a time.
- Replace an existing disk with a new disk that has a greater capacity.
Important
Do not replace more than one disk at a time.
- Wait for the system to rebuild the RAID group and the storage pool.
Tip
You can monitor the rebuild process in Storage Manager or High Availability Manager.
- Once the rebuild process is done, verify that both the disk's and pool's statuses are healthy.
You can check the disk status in Storage Manager > Disks > Disk, and the pool status in Storage Manager > Storage Space. - Repeat the previous steps until all disks have been replaced.
- On the active node, replace the disks one at a time.
Follow the same steps for replacing the disks on the passive node.Important
Ensure the capacity of the disk in each disk slot on the active node matches that of the corresponding disk slot on the passive node.
- After successfully replacing all disks in the RAID group on both nodes, check the storage pool capacity in Storage Manager.
Once the total capacity of the storage pool is updated, the expansion is complete.
Further Reading
How do I expand a storage pool in an HA cluster?
適用產品
- QuTS hero h5.3.0 or later
- High Availability Manager
- Storage Manager
情境
您已部署具有共享儲存空間的高可用性 (HA) 叢集,目前的儲存空間池容量不足。系統可能已發出儲存空間空間不足的警告。
為了滿足不斷增長的數據或性能需求,您需要擴展儲存空間池。由於您的系統處於 HA 環境中,對共享儲存空間的任何修改都必須小心處理,以避免服務中斷或觸發容錯移轉。
解決方案
您可以逐一更換磁碟。請按照以下步驟操作:
重要
逐一更換磁碟會暫時移除 RAID 冗餘保護。請謹慎操作。
- 識別您想要擴展的儲存空間池中的 RAID 群組。
- 前往 儲存空間 管理員 > 儲存空間 空間。
- 識別要擴展的儲存空間池。
- 在 操作下,點擊
> 管理,然後前往 RAID 標籤。
儲存空間 管理員顯示儲存空間池中的 RAID 群組及每個 RAID 群組使用的磁碟。
- 確認 RAID 群組的 RAID 型別為 RAID 1、5 或 6。
注意
目前只有這些 RAID 型別支援逐一更換磁碟進行擴充套件。
- 禁用分配給 RAID 群組的所有備援磁碟。
- 前往 儲存空間 管理員 > 磁碟 > 磁碟。
- 識別備援磁碟。
- 在 動作下,按一下
> 停用備援。
- 記下 RAID 群組使用的所有磁碟插槽。
提示
若要檢查 RAID 群組使用的磁碟插槽,請返回
儲存空間 管理員 > 儲存空間 空間,識別 儲存空間 池,按一下
> 管理,然後前往
RAID 標籤。
- 在被動節點上,一次更換一個磁碟。
- 用容量更大的新磁碟替換現有磁碟。
- 等待系統重建 RAID 群組和 儲存空間 池。
提示
您可以在 儲存空間 管理員或 High Availability Manager 中監控重建過程。
- 重建過程完成後,確認磁碟和池的狀態均為健康。
您可以在 儲存空間 管理員 > 磁碟 > 磁碟中檢查磁碟狀態,並在 儲存空間 管理員 > 儲存空間 空間中檢查池狀態。 - 重複前面的步驟,直到所有磁碟都被更換。
- 在主動節點上,一次更換一個磁碟。
按照相同的步驟更換被動節點上的磁碟。重要
確保主動節點上每個磁碟插槽的磁碟容量與被動節點上相應磁碟插槽的容量相匹配。
- 在成功更換兩個節點上的 RAID 群組中的所有磁碟後,檢查 儲存空間 管理員中的 儲存空間 池容量。
一旦 儲存空間 池的總容量更新,擴展即完成。
進一步閱讀
如何在 HA 叢集 中擴展 儲存空間 池?