Error During Log Flush
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Fcb::close-flush: Operating System Error (null) Encountered.
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Logwriter: Operating System Error 21(the Device Is Not Ready.) Encountered.
1117, Error 9001, Error 823 by Hemantgiri S. GoswamiJuly 31, 2014 Posted in: Microsoft SQL Server, Technical Track Tags: Microsoft SQL Server, troubleshooting Along with other administrators, life of us, the DBAs are no different but full of adventure. At times, we encounter an issue which is very new logwriter operating system error 1117 for us, rather, one that we have not faced in the past. Today, I will be writing about such case. Not so long back, in the beginning of June, I was having my morning tea I got a page from a customer we normally do not receive pages from. While I was analyzing the error logs, I noticed several lines of error like the ones below:
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.
2014-06-07 21:03:40.58 spid67 Database SSCDB was shutdown due to error
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Error 9001 Severity 21 State 4
7,2000 » Administration » Urgent: The log for database 'database' is... 11 database was shutdown due to error 9001 in routine xdesrmfull posts,Page 1 of 212»» Urgent: The log for database 'database' is not available.. Rate Topic Display Mode Topic the operating system returned error 21(the device is not ready.) to sql server Options Author Message Shark EnergyShark Energy Posted Saturday, October 22, 2011 4:41 AM Mr or Mrs. 500 Group: General Forum Members Last Login: Tuesday, February 24, 2015 2:33 AM Points: https://www.pythian.com/blog/sql-server-and-os-error-1117-error-9001-error-823/ 549, Visits: 1,018 Hi all,We have an old SQL 2000 server that is business critical from a reporting point of view.The data was on the physical drives, the log files on a shared SAN drive.Friday morning the SAN rebooted itself due to some issue. This had a bad effect on the log files and SQL started throwing errors such as the http://www.sqlservercentral.com/Forums/Topic1194775-5-1.aspx subject of the topic, and Write error during log flush. Shutting down server. Also operating system error 170 (resource is in use)Now on Friday it seemed to be stopping the SQL services when these errors occured.I moved the log files to a new drive (a share on a physical server elsewhere) because this san drive seemed to be having weird issues since the unexpected reboot (copying a 20gb file there gave delay write fail errors etc). Our network team could see no disk or raid issues on the SAN. Anyway so the logs were moved to the new share, and 2 of them I recreated the logs from scratch as the transactions had all been committed anyway.Ok so now the files are on their new share and everything is ok correct?Well for 1 day yes, but now the errors have begun again but for the new share! The difference this time is that the db seems to go suspect briefly and then get recovered by the SQL server rather than the SQL services stopping.Now I would guess that the logs had
Discussion in 'General DBA Questions' started by xiebo2010cx, May 14, 2007. xiebo2010cx Member SQL 2K EE SP4 on Windows 2k3 servers, here http://www.sql-server-performance.com/forum/threads/troubleshooting-problem.9521/ it is the errors found from errorlog when opening by text file. http://www.programering.com/a/MDO4YzMwATA.html DB services and SQLAgent services are both on. when using EM to view, Database and Management folds showed no items. 2007-05-11 14:31:10.42 spid3 LogWriter: Operating system error 21(The device is not ready.) encountered. 2007-05-11 14:31:10.42 spid3 Write error during log flush. Shutting down server 2007-05-11 14:31:30.42 spid52 Error: 9001, Severity: operating system 21, State: 1 2007-05-11 14:31:30.42 spid52 The log for database 'tempdb' is not available.. 2007-05-11 14:31:50.52 spid52 Error: 9001, Severity: 21, State: 1 2007-05-11 14:31:50.52 spid52 The log for database 'tempdb' is not available.. 2007-05-11 14:32:10.53 spid52 Error: 9001, Severity: 21, State: 1 2007-05-11 14:32:10.53 spid52 The log for database 'tempdb' is not available.. 2007-05-11 14:32:30.55 spid52 Error: 9001, Severity: 21, State: 1 operating system error 2007-05-11 14:32:30.55 spid52 The log for database 'tempdb' is not available.. 2007-05-11 14:32:50.56 spid52 Error: 9001, Severity: 21, State: 1 2007-05-11 14:32:50.56 spid52 The log for database 'tempdb' is not available.. ------------------ Bug explorer/finder/seeker/locator ------------------ xiebo2010cx, May 14, 2007 #2 xiebo2010cx Member it seems all the drives have enough disk space ( more than 40GB free space) ------------------ Bug explorer/finder/seeker/locator ------------------ xiebo2010cx, May 14, 2007 #2 xiebo2010cx Member My another server had the similar problem. 2007-05-09 11:48:11.84 spid1 SQL Server has encountered 1 occurrence(s) of IO requests taking longer than 15 seconds to complete on file [g:mssqldata emdb.ldf] in database [tempdb] (2). The OS file handle is 0x000004D0. The offset of the latest long IO is: 0x00000001af7c00 2007-05-09 11:48:22.64 spid2 LogWriter: Operating system error 1167(The device is not connected.) encountered. 2007-05-09 11:48:22.64 spid2 Write error during log flush. Shutting down server 2007-05-09 11:48:28.42 spid54 Error: 9001, Severity: 21, State: 1 2007-05-09 11:48:28.42 spid54 The log for database 'tempdb' is not available.. 2007-05-09 11:48:44.59 logon Login succeeded for user 'TEST'. Connection: Trusted. 2007-05-09 11:48:48.62 spid54 Error: 9001, Severity: 21, State: 1 2007-05-09 11:48:48.62 spid54 The log fo
report BiztalkMsgBoxDb to enter suspect mode, can not access. Reports events, reduce the pressure to user Simple and App Manager phone, understand their Apps level down time, presumably occurring time, record in Ticket event description, there has not been any change event recently. If no Ticket system, please send email to the related personnel. The event calls Incident Manager management all update, the benefits of doing so: to be confound at people know what happened, to reduce their pressure. Tidy up your 6:30 am many people call always makes her nervous, because of simple brainstorm suspect possible: file group (data and log) damaged disk full error? /SAN Disk? Backup still? Error Log see, the position error messages 6: 40 am to find the original error, occurs in the success of the Log backup after 1 minutes, show the error message: OS Error LogWriter log flush (to write the log) failure. Unable to write the log will cause data suspect 2014-03-17 03:15:56.05 spid5s Error: 17053, Severity: 16, State: 1. 2014-03-17 03:15:56.05 spid5s LogWriter: Operating system error1117(failed to retrieve text for this error. Reason: 15105) encountered. 2014-03-17 03:15:56.05 spid5s Write error during log flush. 2014-03-17 03:15:56.05 spid79 Error: 9001, Severity: 21, State: 4. 2014-03-17 03:15:56.05 spid79 The log for database 'BizTalkMsgBoxDb' isnot available. Check the event log for related error messages. Resolve anyerrors and restart the database. 2014-03-17 03:15:56.05 spid85 Error: 9001, Severity: 21, State: 4. Error analysis: 1117 OS error, disk. The log file in the disk is not full. Log file can migrate to consider. The first attempt to DBCC Repair (the basis for any attempt is to understand: your actions, not make it worse) The command ALTER DATABASE [xxxxxx]SET EMERGENCY; Command error, the database is locked, not alter database, DBCC CHECKDB to (N'xxxxxxx', REPAIR_ALLOW_DATA_LOSS) WITH NO_INFOMSGS, ALL_ERRORMSGS; repair. Why should we give up: DBCC Repair database in emergency mode, it will attempt to use existing log to return to the consistency of the database(consistent recover). If the log has a problem, then it will rebuild log (personally think that this is the repair allow data loss ") . For a 100 GB database, rebuild log can take hours, taking into account the recovery time object (RTO) and SLA (service level agreement), are not allowed to database downtime long (an afterthought)