---
title: "Device Not Ready Error | Microsoft Docs"
ms.custom: ""
ms.date: "06/13/2017"
ms.prod: "sql-server-2014"
ms.reviewer: ""
ms.technology: security
ms.topic: conceptual
helpviewer_keywords: 
  - "Best Practices [Database Engine]"
ms.assetid: 85ec53ed-d887-4d95-a028-08cb502a3356
author: MikeRayMSFT
ms.author: mikeray
manager: craigg
---
# Device Not Ready Error
  This rule checks the system event log for EventId 15. This error can be caused by SCSI host adapter configuration issues or related problems.  
  
## Best Practices Recommendations  
 Review the following Microsoft Knowledge Base articles for more information about how to troubleshoote this error:  
  
-   [Microsoft Knowledge Base article 259237](https://go.microsoft.com/fwlink/?linkid=117746)  
  
-   [Microsoft Knowledge Base article 154690](https://go.microsoft.com/fwlink/?linkid=117747)