Troubleshooting: Login error - Unknown Sql Exception (Number=823, Message=The operating system returned error 21(The device is not ready): Revision history

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27 December 2022

  • curprev 09:5909:59, 27 December 2022‎ LaySwan talk contribs‎ 1,283 bytes +1,283‎ Created page with "'''Question:''' When I try to login the account book, it prompts error “Unknown Sql Exception (Number=823, Message=The operating system returned error 21(The device is not ready)”. Why? '''Version:''' 1.8 / 1.9 / 2.0 1000px <u><b>Possible Reason:</b></u> This is due to a disk being offline or not being online either at the time SQL Server started or was at transitional state after SQL Server has been online. <u><b>Solution:</b></u..."
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