Dell EMC Unity:如何解決在存取 LUN 快照時出現「磁碟機找不到要求的磁區」訊息 (使用者可修正)
Summary: 在最近擴充然後重新整理 LUN 後存取快照時發生問題。 只需刪除並重新創建問題快照。
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Instructions
在 Unity 平台上,我們可以擷取呈現給主機的 LUN 快照或時間點參照。快照的大小與生產 LUN 的大小相同。如果來源 LUN 的容量增加,相關的快照會維持在原始容量。快照最終重新整理後,其中會包含顯示新增加大小的中繼資料,但不會追蹤所有寫入 LUN 擴充大小的資料。因此,快照不會包含有效資訊。當主機嘗試存取顯示但無法存取的空間時,會導致主機端訊息指出「磁碟機找不到要求的磁區」。
Additional Information
要解決此問題,請執行以下操作:
- 從次要主機檢視移除快照
- 從 Unity 陣列刪除快照
- 建立生產 LUN 的新快照
- 表示與次要主機的快照
Affected Products
Dell EMC Unity FamilyProducts
Dell Unity 300, Dell EMC Unity 300F, Dell EMC Unity 350F, Dell EMC Unity 400, Dell EMC Unity 400F, Dell EMC Unity 450F, Dell EMC Unity 500, Dell EMC Unity 500F, Dell EMC Unity 550F, Dell EMC Unity 600, Dell EMC Unity 600F, Dell EMC Unity 650F
, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family, Dell EMC Unity Hybrid, Dell EMC UnityVSA Professional Edition/Unity Cloud Edition
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Article Properties
Article Number: 000019651
Article Type: How To
Last Modified: 16 Oct 2025
Version: 3
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