PowerScale OneFS 9.X.X：解決：已啟用位於下列位置的磁碟驅動器寫入快取

Summary: 在一或多個節點重新啟動后，使用者可能會看到一或多個節點的以下錯誤或類似內容。OneFS 停用寫入快取，以符合建議的磁碟驅動器設定。「已解決：磁碟驅動器在下列位置的寫入快取已啟用：機箱序號 JXXXXXXXXXXXX1、節點 4、SLED E、插槽 1、Type HDD、LNUM 0、序列 XXXXXXXX。」

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Symptoms

變更的是節點已重新啟動。您可能不會看到所有磁碟驅動器的此訊息，可能只有整個叢集的一或兩個磁碟驅動器。

使用者會看到以下警示或類似資訊，並想知道造成此問題的原因，以及磁碟驅動器是否已損壞： 
Resolved: The write-cache for the drive in the following location is enabled: Chassis Serial Number JXXXXXXXXXXXX1, Node 4, Sled E, Slot 1, Type HDD, LNUM 0, Serial XXXXXXXX. OneFS disabled the write-cache to comply with recommended drive settings. Replace the drive according to the instructions in the H400 Drive Replacement Guide.

注意：這僅在 Gen6 叢集上出現。

Cause

此問題是，根據預設，磁碟驅動器上的寫入快取已停用，而且在重新啟動期間，寫入快取似乎會變更為啟用。系統會回報此資訊（通常為外觀方面），而且在檢查「Write Cache Enabled」值時可以忽略此資訊。

此問題將在未來的 OneFS 版本中解決。Dell 工程團隊正在努力變更事件通知。

Resolution

執行以下命令以確認磁碟驅動器的狀態，以及磁碟驅動器寫入快取已停用：     
  1. 確認磁碟驅動器的狀態，並檢查是否有任何不健全的磁碟驅動器：       
# isi_for_array 'isi devices list | grep -iv "healthy" | grep -iv "L3"
  1. 檢查磁碟驅動器的寫入快取是否已停用：       
# camcontrol modepage da<drive da number> -m 8 -P 0
# camcontrol modepage da<drive da number>-m 8 -P 1
# camcontrol modepage da<drive da number>-m 8 -P 2
# camcontrol modepage da<drive da number>-m 8 -P 3

上述每個命令都會顯示值清單，如下所示：  
Cluster-8# isi_for_array -n4 camcontrol modepage da3 -m 8 -P 0
Cluster-4: IC: 0
Cluster-4: ABPF: 0
Cluster-4: CAP: 0
Cluster-4: DISC: 0
Cluster-4: SIZE: 0
Cluster-4: WCE: 0
Cluster-4: MF: 0
Cluster-4: RCD: 0
Cluster-4: Demand Retention Priority: 0
Cluster-4: Write Retention Priority: 0
Cluster-4: Disable Pre-fetch Transfer Length: 0
Cluster-4: Minimum Pre-fetch: 0
Cluster-4: Maximum Pre-fetch: 0
Cluster-4: Maximum Pre-fetch Ceiling: 0

Cluster-8# isi_for_array -n4 camcontrol modepage da3 -m 8 -P 1
Cluster-4: IC: 0
Cluster-4: ABPF: 0
Cluster-4: CAP: 0
Cluster-4: DISC: 0 Cluster-4: SIZE: 0
Cluster-4: WCE: 0
Cluster-4: MF: 0
Cluster-4: RCD: 0
Cluster-4: Demand Retention Priority: 0
Cluster-4: Write Retention Priority: 0
Cluster-4: Disable Pre-fetch Transfer Length: 0
Cluster-4: Minimum Pre-fetch: 0
Cluster-4: Maximum Pre-fetch: 0
Cluster-4: Maximum Pre-fetch Ceiling: 0
Please check the value associated with the WCE Parameter for each of the commands. If WCE is set to 0, then we can safely ignore and quiet the alert.
 
注意：步驟 2 的命令僅在 Gen6 硬體上執行

Affected Products

Isilon, Isilon A200, Isilon A2000, Isilon F800, Isilon F810, Isilon Gen6, Isilon H400, Isilon H500, Isilon H5600, Isilon H600
Article Properties
Article Number: 000170338
Article Type: Solution
Last Modified: 29 May 2025
Version:  6
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