Data Domain：檢測到 NVRAM 故障 |錯誤或故障狀況

Summary: NVRAM 及其電池備份單元 （BBU） 是 Data Domain 資料無損架構的關鍵元件。Data Domain 作業系統 （DDOS） 會監控這些元件。如果發生硬體故障，DDOS 會產生警示，必須立即解決才能維護系統完整性。

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Symptoms

⚠️重要：請勿更換 NVRAM 卡或 BBU，除非 DDOS 已張貼故障警示。不建議主動更換。

適用於：

  • 所有 Data Domain 系統
  • 所有 DDOS 軟體版本

可能的警示：

  • NVRAM-00001: File system is disabled due to a problem with the NVRAM subsystem
  • NVRAM-00002: Battery at low charge and not charging
  • NVRAM-00003: Excessive PCI or memory errors
  • NVRAM-00201: Hardware fault detected with NVRAM card
  • NVRAM-00202: Hardware fault detected with NVRAM remote battery
  • NVRAM-00204: Invalid condition detected with NVRAM battery

Cause

DDOS 持續監控 NVRAM 子系統。當它偵測到 NVRAM 卡或 BBU 故障時，會張貼警示。
此警示通常包含診斷詳細資料，但如果更換元件無法解決問題，則可能需要進一步調查。

Resolution

解決警示通常包括更換 NVRAM 卡或 BBU （若非整合式）。請遵循這些步驟：

  1. 產生支援套裝
  2. 向您的支援提供者提出服務要求。

實用的 CLI 命令：

  • # alerts show current        # Check for active NVRAM or battery alerts
# system show nvram          # Review card errors and battery status
# system show hardware       # Confirm NVRAM card presence

 

⚠️注意：電池電量低於 100% 是正常現象。DDOS 會定期放電及充電，以管理電池健全狀況。

 

Additional Information

範例：
- 在這裡我們看到一個很好的NVRAM - 零“錯誤”和所有電池狀態都“正常”（即使電量為~96%）

sysadmin@itsaDD# system show nvram
NVRAM Cards:
        Card   Component             Value
        ----   -------------------   -----------------------------------------------
        1      Slot                  10
               Firmware version      2.0.4
               Memory size           3.93 GiB
               Errors                0 memory (0 uncorrectable), 0 PCI, 0 controller
               Board temperature     35 C
               CPU temperature       41 C
               Number of batteries   4
               Card model no         313-163-100A-02
               Card serial no        FLA011301nnnnn
               Battery model no      313-164-100A-01
               Battery serial no     FLA021242nnnnn
        ----   -------------------   -----------------------------------------------
NVRAM Batteries:
        Card   Battery   Status   Charge   Charging   Time To       Temperature   Voltage
                                           Status     Full Charge
        ----   -------   ------   ------   --------   -----------   -----------   -------
        1      1         ok       96 %     enabled    0 mins        26 C          8.088 V
               2         ok       95 %     enabled    0 mins        27 C          8.082 V
               3         ok       97 %     enabled    0 mins        25 C          8.084 V
               4         ok       95 %     enabled    0 mins        26 C          8.072 V
        ----   -------   ------   ------   --------   -----------   -----------   -------

 

Affected Products

Data Domain, PowerProtect Data Protection Appliance, Data Domain Deduplication Storage Systems, Integrated Data Protection Appliance Family, PowerProtect Data Protection Hardware
Article Properties
Article Number: 000204334
Article Type: Solution
Last Modified: 31 أكتوبر 2025
Version:  3
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