Logwriter Operating System Error 21the Device Is Not Ready
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The Operating System Returned Error 21(the Device Is Not Ready.) To Sql Server
Server losing access to disks Rate Topic Display Mode Topic Options Author Message Sam GreeneSam operating system error 1784 sql server Greene Posted Tuesday, February 19, 2008 2:08 PM SSC Veteran Group: General Forum Members Last Login: Wednesday, November 4, 2015 3:49 PM Points: operating system error 1784 supplied user buffer 253, Visits: 584 Hi, Last friday we installed incipient on our san switches, from what I know, it decouples the OS from the san and lets you move data around without making os changes - I'm not a SAN
Error: 823, Severity: 24, State: 2.
expert, so I won't pretend to know the details. We have two paths to the arrays (two switches). They installed on one switch and then the other. At this time our production server lost access to the tempdb with these error messages:- - - - SQL Server has encountered 1 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file [J:\Logs\Budget_log.ldf] in database [Budget] (7). The OS file handle is 0x0000000000000B78. The offset of
Fcb::close-flush: Operating System Error (null) Encountered
the latest long I/O is: 0x000000c4e9d400For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.- - - -LogWriter: Operating system error 21(The device is not ready.) encountered.For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.- - - -The log for database 'tempdb' is not available. Check the event log for related error messages. Resolve any errors and restart the database.- - - - Sql 2005 restarted itself. It then happened again today with a slightly different message on another server on the same array.-----17053 :LogWriter: Operating system error 1784(The supplied user buffer is not valid for the requested operation.) encountered.-----I thought it was just an issue at the install time, but now it's reoccuring - a major problem. SQL 2000 just sat there until I restarted sql service. Anyone have insight on this. I'm sure our SAN guys will have some ideas, but I was curious.Thanks Post #457638 Roy ErnestRoy Ernest Posted Tuesday, February 19, 2008 2:19 PM SSCrazy Group: General Forum Members Last Login: Yesterday @ 7:19 AM Points: 2,382, Visits: 6,850 We had one issue like that. Thankfully it was on our test environment. One of our administrators changed some settings on the switch and the switch had to be rebooted.One thing you can look for is to see of the switch is getting rebooted for some reasons. Then the Disks go offline. That could trigger
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Write Error During Log Flush
Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; operating system error code 21 the device is not ready it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top DBCC CheckDB The operating system returned error http://www.sqlservercentral.com/Forums/Topic457638-146-1.aspx 21(The device is not ready.) up vote 3 down vote favorite 1 The operating system returned error 21(The device is not ready.) to SQL Server during a read at offset 0x0000000001c000 in file 'E:\SQL Database\S***d\NewAdvWorks.mdf'. Additional messages in the SQL Server error log and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC http://serverfault.com/questions/104025/dbcc-checkdb-the-operating-system-returned-error-21the-device-is-not-ready/190689 CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online. sql-server sql-server-2005 share|improve this question asked Jan 18 '10 at 16:37 ManishKumar1980 migrated from stackoverflow.com Jan 19 '10 at 3:53 This question came from our site for professional and enthusiast programmers. 0 of 7 answers accepted...... Please get in the habit of accepting the best answer provided, the one solving your problem. It's the right and polite thing to do on StackOverflow and serves as an incentive for others to continue to help those looking for answers. See: meta.stackexchange.com/questions/5234/… –marc_s Jan 18 '10 at 18:08 I presume that this is n error message and that you would like some help debugging, no? However, I'm having to guess here because you haven't actually written a question or request for help. Please clarify. –dmckee Jan 19 '10 at 2:52 add a comment| 3 Answers 3 active oldest votes up vote 6 down vote What worked for me: alter database [database_name] set offline ...wait a few seconds... alter database [database_name] set online This is better than restarting SQL Server since restarting SQL Server takes all databases offline (not just the database that is inaccessible). share|improve this answer edited May 21 '13 at 10:50 Ladadadada 18.9k43270 answered May 21 '13 at 10:27 Robert
(Current - 4/5/2010 10:31:00 https://www.pythian.com/blog/sql-server-and-os-error-1117-error-9001-error-823/ AM) Source spid56 Message The operating system returned error 21(The device is not ready.) to SQL Server during a read at offset 0x00000000056000 in file 'X:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data\xxxxx.mdf'. Additional messages in operating system the SQL Server error log and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error operating system error can be caused by many factors; for more information, see SQL Server Books Online. Cause. We had some issues with the FLARE storage operating environment of our EMC CLARiiON CX3. FLARE was disconnecting unexpectedly servers connected to the CX3. Solution. We updated FLARE on the CX3 and it solved the problem. During this update process, computers connected to the SAN experienced temporarily some disconnections. After the update was applied, we restarted the server where the SQL Server instance is installed. Finally we ran a consistency check on the drive attached to the CX3 and on every database on the SQL Server instance. .Send mail to webmaster@sqlcoffee.com with questions or comments about this web site.
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2014-06-07 21:03:40.57 spid6s Error: 17053, Severity: 16, State: 1.
LogWriter: Operating system error 21(The device is not ready.) encountered.
2014-06-07 21:03:40.57 spid6s Write error during log flush.
2014-06-07 21:03:40.57 spid67 Error: 9001, Severity: 21, State: 4.
The log for database 'SSCDB' is not available. Check the event log for related error messages. Resolve any errors and restart the database.
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