Similar Questions

• Interesting scenario, is it necessary to reset the logs periodically?

  10.2.0.2 Ent Ed - Rman 10.2.0.2 - aix 5.3
  
  Is it possible you need to perform a reset of the logs periodically? This issue initially came to me at the worst of times, during a large enough database recovery.
  
  If / when you perform a spfile or controlfile recovery without a recovery catalog, if your log sequence is greater than 255 and your last backup was more a day there, is - it possible your last backup is located? In our scenario, we had a day old controlfile cliché that we used, but I don't know if we would have been able to recover was not there. Reading of 10g, Recovery Manager Reference manual:
  
  "FROM AUTOMATIC BACKUP.
  [autoBackupOptionList]
  Restores a backup of control file. You can specify this option on the RESTORE CONTROLFILE controls and RESTORE SPFILE. When restoring or another type of file in NOCATALOG mode, the SAFEGUARD clause is necessary.
  
  RMAN starts the search on the current date or the day specified with the VALUE up to THAT. If no automatic backup is in the currents or DEFINED so far, RMAN checks the previous day from sequence 256 (or sequence specified by MAXSEQ) until it reaches 0. The search continues until days MAXDAYS (default 7, maximum of 366) of the current or DEFINED to date. If no automatic backup located within days MAXDAYS, RMAN reports an error and stops the command. "
  
  The doc says not her, but if you have not already tried it define MAXSEQ > 256, you will get an error if you do. 256 is the upper limit for the parameter MAXSEQ. This is an excerpt from my test of this code:
  
  < code >
  oracle_sandbox1 > target rman.
  
  Recovery Manager: release 10.2.0.2.0 - Production on Fri 21 Nov 09:16:36 2008
  
  Copyright (c) 1982, 2005, Oracle. All rights reserved.
  
  connected to target database: WEBDEV (DBID = 1965364971)
  
  RMAN > show all.
  
  using the control file of the target instead of recovery catalog database
  RMAN configuration parameters are:
  CONFIGURE REDUNDANCY 5 RETENTION STRATEGY;
  CONFIGURE BACKUP OPTIMIZATION # by default
  CONFIGURE THE TYPE OF DEFAULT DEVICE TO 'SBT_TAPE ';
  CONFIGURE CONTROLFILE AUTOBACKUP ON;
  CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE SBT_TAPE TO "%F" # by default
  CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO "%F" # by default
  SET UP THE DEVICE TYPE SBT_TAPE PARALLELISM 1 BACKUP BACKUPSET TYPE; # by default
  SET UP THE DEVICE TYPE DISK PARALLELISM 1 BACKUP BACKUPSET TYPE; # by default
  CONFIGURE BACKUP COPIES OF DATA FILE FOR DEVICE TYPE SBT_TAPE TO 1; # by default
  CONFIGURE BACKUP OF DATA TO DISK FILE TYPE DEVICE TO 1; # by default
  CONFIGURE BACKUP ARCHIVELOG FOR DEVICE TYPE SBT_TAPE TO 1; # by default
  CONFIGURE BACKUP ARCHIVELOG FOR DEVICE TYPE DISK TO 1; # by default
  CONFIGURE MAXSETSIZE TO UNLIMITED; # by default
  CONFIGURE ENCRYPTION OF DATABASE # by default
  CONFIGURE THE ENCRYPTION ALGORITHM "AES128"; # by default
  CONFIGURE THE NONE ARCHIVELOG DELETION POLICY; # by default
  CONFIGURE SNAPSHOT CONTROLFILE NAME TO ' / app/oracle/product/10.2/dbs/snapcf_webdev.f'; # by default
  
  RMAN > run {}
  2 > allocate channel t1 type 'SBT_TAPE ';
  3 > restore spfile from pfile ' / app/oracle/product/10.2/dbs/webdev_pfile.tst' from autobackup maxseq = 300;
  {4 >}
  
  allocated channel: t1
  channel t1: sid = 256 devtype = SBT_TAPE
  channel t1: Veritas NetBackup for Oracle - version 6.5 (2007111606)
  
  From restoration to November 21 08
  
  output channel: t1
  RMAN-00571: ===========================================================
  RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.
  RMAN-00571: ===========================================================
  RMAN-03002: failure of the restore command at 21/11/2008 09:23:46
  RMAN-06494: MAXSEQ = 300 is out of range (0-255)
  
  RMAN >
  < code >

  255 is max he seeks. The sequence which means MAXSEQ is not the same as the sequence of redo logs.

  You can always resort to restore spfile/controlfile by specifying the name of the backuppiece itself.

• Archiving logs apply frequency in Data Guard

  Dear all,
  
  How can we verify/set up the frequency archive newspapers should be applied to the Data Guard?
  
  Version: 10 g 2; OS: Windows 2003 R2 (64-bit).

  How we can configure the frequency of archive logs must be applied to the DG?

  Erase the question once more what you're expecing, as I understand, it's...

  It depends on the Redo genearation / Archive primary & network latency between primary databases & Eve.
  There is a configuration, you can change in the primary to put options such as delay , net_timeout and so on.

  consult this manual too.
  http://download.Oracle.com/docs/CD/B28359_01/server.111/b28294/log_arch_dest_param.htm

• Redo log sizing

  Hi all
  
  OEL 5.6
  
  Oracle 9.2.0.6
  
  Are just my recovery for his number and connects the size based on the delay time of switching? Thank you
  

  -rw-r--r-- 1 oraprod dba    10486272 Jan  3 23:24 log01a.dbf
  -rw-r--r-- 1 oraprod dba    10486272 Jan  3 23:24 log01b.dbf
  -rw-r--r-- 1 oraprod dba    10486272 Jan  3 23:09 log02a.dbf
  -rw-r--r-- 1 oraprod dba    10486272 Jan  3 23:09 log02b.dbf

  In the alerts log switching frequency:
  

  Beginning log switch checkpoint up to RBA [0x21186.2.10], SCN: 0x056e.66a6d05f
  Thread 1 advanced to log sequence 135558
    Current log# 1 seq# 135558 mem# 0: /u02/oracle/oaproddata/log01a.dbf
    Current log# 1 seq# 135558 mem# 1: /u02/oracle/oaproddata/log01b.dbf
  Thread 1 cannot allocate new log, sequence 135559
  Checkpoint not complete
    Current log# 1 seq# 135558 mem# 0: /u02/oracle/oaproddata/log01a.dbf
    Current log# 1 seq# 135558 mem# 1: /u02/oracle/oaproddata/log01b.dbf
  Wed Jan  2 20:37:01 2013
  Completed checkpoint up to RBA [0x21186.2.10], SCN: 0x056e.66a6d05f
  Wed Jan  2 20:37:01 2013
  Beginning log switch checkpoint up to RBA [0x21187.2.10], SCN: 0x056e.66a6d5e4
  Thread 1 advanced to log sequence 135559
    Current log# 2 seq# 135559 mem# 0: /u02/oracle/oaproddata/log02a.dbf
    Current log# 2 seq# 135559 mem# 1: /u02/oracle/oaproddata/log02b.dbf
  Thread 1 cannot allocate new log, sequence 135560
  Checkpoint not complete
    Current log# 2 seq# 135559 mem# 0: /u02/oracle/oaproddata/log02a.dbf
    Current log# 2 seq# 135559 mem# 1: /u02/oracle/oaproddata/log02b.dbf
  Wed Jan  2 20:37:07 2013
  Completed checkpoint up to RBA [0x21187.2.10], SCN: 0x056e.66a6d5e4
  Wed Jan  2 20:37:07 2013
  Beginning log switch checkpoint up to RBA [0x21188.2.10], SCN: 0x056e.66a6e3f2
  Thread 1 advanced to log sequence 135560
    Current log# 1 seq# 135560 mem# 0: /u02/oracle/oaproddata/log01a.dbf
    Current log# 1 seq# 135560 mem# 1: /u02/oracle/oaproddata/log01b.dbf
  Wed Jan  2 20:37:18 2013
  Thread 1 cannot allocate new log, sequence 135561
  Checkpoint not complete
    Current log# 1 seq# 135560 mem# 0: /u02/oracle/oaproddata/log01a.dbf
    Current log# 1 seq# 135560 mem# 1: /u02/oracle/oaproddata/log01b.dbf
  Wed Jan  2 20:37:18 2013
  Completed checkpoint up to RBA [0x21188.2.10], SCN: 0x056e.66a6e3f2
  Wed Jan  2 20:37:18 2013
  Beginning log switch checkpoint up to RBA [0x21189.2.10], SCN: 0x056e.66a6f0a4
  Thread 1 advanced to log sequence 135561
    Current log# 2 seq# 135561 mem# 0: /u02/oracle/oaproddata/log02a.dbf
    Current log# 2 seq# 135561 mem# 1: /u02/oracle/oaproddata/log02b.dbf
  Wed Jan  2 20:40:14 2013
  Completed checkpoint up to RBA [0x21189.2.10], SCN: 0x056e.66a6f0a4
  Wed Jan  2 20:40:53 2013
  Beginning log switch checkpoint up to RBA [0x2118a.2.10], SCN: 0x056e.66a70cb2
  Thread 1 advanced to log sequence 135562
    Current log# 1 seq# 135562 mem# 0: /u02/oracle/oaproddata/log01a.dbf
    Current log# 1 seq# 135562 mem# 1: /u02/oracle/oaproddata/log01b.dbf
  Wed Jan  2 20:43:24 2013
  Completed checkpoint up to RBA [0x2118a.2.10], SCN: 0x056e.66a70cb2

  And also I see frequently repeated ORA-1555 on the same statement in the alerts log, how can I avoid this?
  Is this cause also of small redo logs?
  

  Beginning log switch checkpoint up to RBA [0x211b2.2.10], SCN: 0x056e.70580afc
  Thread 1 advanced to log sequence 135602
    Current log# 1 seq# 135602 mem# 0: /u02/oracle/oaproddata/log01a.dbf
    Current log# 1 seq# 135602 mem# 1: /u02/oracle/oaproddata/log01b.dbf
  Wed Jan  2 21:26:14 2013
  Completed checkpoint up to RBA [0x211b2.2.10], SCN: 0x056e.70580afc
  Wed Jan  2 21:26:16 2013
  ORA-01555 caused by SQL statement below (Query Duration=2913 sec, SCN: 0x056e.66a6f853):
  Wed Jan  2 21:26:16 2013
   INSERT INTO RA_INTERFACE_ERRORS
   (INTERFACE_LINE_ID,
    MESSAGE_TEXT,
    INVALID_VALUE)
  SELECT
  INTERFACE_LINE_ID,
  :b_err_msg6,
  'trx_number='||T.TRX_NUMBER||','||'customer_trx_id='||TL.CUSTOMER_TRX_ID
  FROM RA_INTERFACE_LINES_GT IL, RA_CUSTOMER_TRX_LINES TL, RA_CUSTOMER_TRX T
  WHERE  IL.REQUEST_ID = :b1
  AND    IL.INTERFACE_LINE_CONTEXT = 'ORDER ENTRY'
  AND    T.CUSTOMER_TRX_ID =TL.CUSTOMER_TRX_ID
  AND  IL.INTERFACE_LINE_CONTEXT = TL.INTERFACE_LINE_CONTEXT
  AND IL.INTERFACE_LINE_ATTRIBUTE1 = TL.INTERFACE_LINE_ATTRIBUTE1
  AND IL.INTERFACE_LINE_ATTRIBUTE2 = TL.INTERFACE_LINE_ATTRIBUTE2
  AND IL.INTERFACE_LINE_ATTRIBUTE3 = TL.INTERFACE_LINE_ATTRIBUTE3
  AND IL.INTERFACE_LINE_ATTRIBUTE4 = TL.INTERFACE_LINE_ATTRIBUTE4
  AND IL.INTERFACE_LINE_ATTRIBUTE5 = TL.INTERFACE_LINE_ATTRIBUTE5
  AND IL.INTERFACE_LINE_ATTRIBUTE6 = TL.INTERFACE_LINE_ATTRIBUTE6
  AND IL.INTERFACE_LINE_ATTRIBUTE7 = TL.INTERFACE_LINE_ATTRIBUTE7
  AND IL.INTERFACE_LINE_ATTRIBUTE8 = TL.INTERFACE_LINE_ATTRIBUTE8
  AND IL.INTERFACE_LINE_ATTRIBUTE9 = TL.INTERFACE_LINE_ATT
  Wed Jan  2 21:26:22 2013
  Beginning log switch checkpoint up to RBA [0x211b3.2.10], SCN: 0x056e.7062ba10
  Thread 1 advanced to log sequence 135603
    Current log# 2 seq# 135603 mem# 0: /u02/oracle/oaproddata/log02a.dbf
    Current log# 2 seq# 135603 mem# 1: /u02/oracle/oaproddata/log02b.dbf
  Wed Jan  2 21:26:22 2013

  How can I configure management automatic cancellation in 9i?
  
  Thank you

  If UNDO_RETENTION has no impact on the ORA-01555 error, this error message you will get in this scenario?

  UNDO_RETENTION = 1800
  Query running time = 1900

  Works SQL and requires a block of data to read cancellation that has been updated there are 1900. Meanwhile, other users are using the system and the cancellation expired (anything above 1800) was crushed. User request will be error, and I would say that this will be an ORA-01555? Correct me if I'm wrong.

  As pointed out by bby Viswarayar Maran, your UNDO_RETENTION must be on the longer duration of the query. It's what he's there for. Yes, it can happen when you commit inside a loop, but it may happen in this case, too, I think.

  Actions:

  1 increase the size of REDO logs
  2. take another report statspack for the same period of time on a comparable day (in terms of workload, running processes, etc.) and see what it looks like

  Question: Your statspack report is from 22:00 - midnight, what are your pics to load? You have a working window batch during the night which is and then charge during the day? If so, we will need to look at this time for the statspack report, too.

• Difference between redo logfiles, Undo Tablespace, Archive log data file

  Can some please highlight the difference between Undo and Redo Logs
  Also why we need to separate the archive logs when the recovery log data can be written directly in data files...
  
  Help you will be highly appreciated...

  Hello

  Ed gave you a very good answer.

  Rememeber database files are online and they are written to by DBWR process. So we have the database files, redo log files and archive logs.
  In order to avoid all the crawl log when you perform a recovery, database performs control points that summarize the State of the database. This operation of control point provides a shortcut to the recovery. At the checkpoint, the database knows that all incorrect pages were written to disk (for example, database files). At the time of recovery, the log (which includes-finished and unfinished transactions) is used to bring the database to a consistent state. The system locates the time of the last checkpoint and returned to this position in the log file. Then he restores forward all completed transactions (read committed) that occurred after the last checkpoint and rolls back all transactions that were not committed, but that began before the last checkpoint. This is where online log files are used.

  Now imagine that you need to back up your database GB 100 + all 10 minutes. It would be a waste of space! So you take a backup of your database at time t and backups of archiver process redo logs periodically to check the newspapers so that redo log files can be replaced and RMAN will use the last backup and archive the log files to recover your database at the time.

  Now, I mentioned the checkpoint process. The Checkpoint process regularly launches a control point that uses DBWR to rewrite all the blocks Sales in the data files, so synchronize the database. Imagine one dam is running and have exhausted all the redo log files. At this point, Oracle will wait until all Sales already queued blocks have been written to the buffer on disk (database files) foremost him redo log files can be considered as superfluous and available for re-use (i.e. can be overwritten). This will result in the following message in the alert.log:

  Thread 1 advanced to log sequence 17973
    Current log# 3 seq# 17973 mem# 0: /oracle/data/HAM1/log3aHAM1.dbf
    Current log# 3 seq# 17973 mem# 1: /oracle/data/HAM1/log3bHAM1.dbf
  Thread 1 cannot allocate new log, sequence 17974
  Checkpoint not complete
    Current log# 3 seq# 17973 mem# 0: /oracle/data/HAM1/log3aHAM1.dbf
    Current log# 3 seq# 17973 mem# 1: /oracle/data/HAM1/log3bHAM1.dbf
  Thread 1 advanced to log sequence 17974
  

  I am sure you have done the following:

  alter database mount;
  
  Database altered.
  

  When you mount a database, Oracle combines the instance started the database. Oracle control files are opened and read. However, no checking such as the restore/recovery is performed

  alter database open;
  
  Database altered.
  

  An open command opens the data files, recovery logs, it performs automatic and consistency of database recovery. At this point, the database is now ready to be used by all valid users.

  HTH,

  Mich

  Published by: Mich Talebzadeh on November 19, 2011 16:57

• 9205 digital entry into Compact DAQ sistem

  I have a Council NI 9205 and I want to use the digital input to acquire a digital fashion Laser diffuse sensor signal, to measure the speed of rotation of an electric motor. The problem is that I have not access to PFI0 in terminal mode of spring. NOR Max I can only receive analog signals. Thank you!

  Hi Padeanu.L,

  You are right that it is not possible to use PFI 9205 MAX line using the DAQ Assistant.  However, it is possible in any programming environment that you prefer (LabVIEW, C, etc.).  The PFI line cannot be used as a digital task, but it can be used with counters (edges of County, period, frequency, etc.).  For example, in the Counter - County Edges.vi example, you can set the input terminal/9205DeviceName/PFI0 and the meter/ChassisName/_ctrN, where N is the counter that you want to use.  The underscore character counter is because the 9205 has only one PFI line that does not support all modes of counting cDAQ, which is also why he does not for you in MAX.

• Problem with the biphasic signal generator

  Hello!

  I filtered signal and detected envelope with OATS envelope detection.vi of given length. And now I need to modulate signal biphasic (photo). The biphasic signal should be the same length as my envelope signal. I want to be able to change the width of peak (25us) time and period, frequency (1 kHz), the biphasic signal amplitude (1). I know that I can start with pulse pattern.vi (check my diagram). But I don't know how to put together it me give only a single period. I have LabVIEW 2013.

  

  

  You can repeat your profile of signals using a loop. Keep in the Middle the number of times where the model is repeted depends on the length of the theme of your message and the sampling frequency, you use the model and the message. Check this picture (just a quick suggestion):

  

  best,

• Calculate dates starting at a specific date intervals

  I need to write a generic inPL/SQL logic to derive a period (frequency is either monthly/quarterly/annual/semi-annual) starting at a given date.

  But Feb I requires separate treatment in the business date falling on 30, months with 31 days and in the case of date falling on 31 months with 30 days.

  I tried several ways but because he can't find a way to answer a few cases, when the date is 29/30/31 without coding in hard dates per month.

  I expect for such cases is the following:

  For example

  Particular day = 29 a month (for example, starting with Jan - 13)

  Monthly

  January 29, 2013 <>- 27 February 13

  February 28, 2013 <>- 28 March 13

  29 March 2013 <>- April 28, 13

  29 April 2013 <>- may 28, 13

  May 29, 2013 <>- 28 June 13

  June 29, 2013 <>- 28 July 13

  July 29, 2013 <>- 28 Aug 13

  August 29, 2013 <>- 13-SEP-28

  29 SEP-2013 <>- 28 October 13

  29 October 2013 <>- 28 November 13

  November 29, 2013 <>- 28 December 13

  29 December 2013 <>- 28 January 14

  Quarterly publication

  JANUARY 29, 2013 - 28-APR-13

  29 APRIL 2013 - 28-JUL-13

  JULY 29, 2013 - 28-OCT-13

  OCTOBER 29, 2013 - 28-JAN-14

  Semi-annually

  JANUARY 29, 2013 - 28-JUL-13

  JULY 29, 2013 - 28-JAN-14

  For example

  Particular day = 30 a month (for example, starting with Jan - 13)

  Period should be as follows:

  Monthly

  January 30, 2013 <>- February 28, 13

  February 28, 2013 <>- 29 March 13

  March 30, 2013 <>- 29 April 13

  April 30, 2013 <>- may 29, 13

  30 may 2013 <>- 29 June 13

  June 30, 2013 <>- 29 July 13

  July 30, 2013 <>- 29 Aug 13

  August 30, 2013 <>- 13-SEP-29

  30 SEP-2013 <>- October 29, 13

  October 30, 2013 <>- 29 November 13

  November 30, 2013 <>- 29 December 13

  December 30, 2013 <>- 29 January 14

  Quarterly publication

  January 30, 2013 <>- 29 April 13

  April 30, 2013 <>- 29 July 13

  July 30, 2013 <>- October 29, 13

  October 30, 2013 <>- 29 January 14

  Semi-annually

  January 30, 2013 <>- 29 July 13

  July 30, 2013 <>- 29 January 14

  Also, the code must meet the case of leap year so.

  The problem here is my entry for this routine code is ' Date from ' who will be progressive i.e. to date ' + 1 from the last period (initially it will come from the value stored in DB) and the output should be "to this day".

  Can you guys please provide some suggestions.

  Thank you.

  Hello

  Sorry, we don't know exactly what you want.  If you can say what you want in English, then someone can help you code it in SQL.

  As Pleiadan has said, of course looks like a job for the ADD_MONTHS function.  Maybe something like this:

  WITH the settings THAT

  (

  SELECT DATE '' 2014-01-30 AS start_date

  1 AS months_per_period

  OF the double

  )

  SELECT ADD_MONTHS (start_date, months_per_period * (LEVEL - 1)) AS period_start

  , ADD_MONTHS (start_date, months_per_period * LEVEL)-1 AS period_end

  OF parameters

  CONNECT BY LEVEL<= 12="">

  ;

  Output:

  PERIOD_STAR PERIOD_END

  ----------- -----------

  January 30, 2014 February 27, 2014

  February 28, 2014 29 March 2014

  March 30, 2014 April 29, 2014

  April 30, 2014 29 may 2014

  May 30, 2014 June 29, 2014

  30 June 2014 July 29, 2014

  July 30, 2014 29 August 2014

  August 30, 2014 29-Sep-2014

  30 - Sep - 2014 29 October 2014

  October 30, 2014 29 November 2014

  30 November 2014 29 December 2014

  December 30, 2014 29 January 2015

• Cannot start EM

  Hello! I have trouble with EM. This is not starting:
  
  [oracle@leader ~] $ emctl start dbconsole
  Oracle Enterprise Manager 11g Database Control Release 11.1.0.6.0
  Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
  
  Oracle Enterprise Manager 11 g Database Control from... failed.
  ------------------------------------------------------------------
  Logs are generated in the /opt/oracle/product/11.1.0/db_1/leader_leader/sysman/log directory
  
  After that, I have a zombie named java < deceased > process on Linux (Oracle Ent. Linux 5).
  
  Search in the directory of newspapers:
  
  emagent.log
  2009-07-14 15:18:26 EMAgent wire-1764947776 started successfully (00702)
  
  emdb_nohup (this file becomes increasingly large)
  07/09/14 15:18:20 fatal error: outgoing server
  Mar 14 Jul 15:18:20 2009::Checking DBConsole status: 6647
  Mar 14 15:18:20 2009::DBConsole Jul left kills Jul 14 15:18:20 2009 with return the value 1.
  Mar 14 Jul 15:18:20 2009::Restarting DBConsole.
  Mar 14 Jul 15:18:20 2009::Console launched with PID 6731 in time kills Jul 14 15:18:20 2009
  07/09/14 15:18:21 server initialization error: opt/oracle/product/11.1.0/db_1/oc4j/j2ee/OC4J_DBConsole_leader_leader/config/server.xml, fatal error the offset of line 1 1 in file:/opt/oracle/product/11.1.0/db_1/oc4j/j2ee/OC4J_DBConsole_leader_leader/config/server.xml:. < line 1, column 1 >: XML-20108: (Fatal Error) start of element root waited.
  
  (Server.xml file is size zero)
  
  emdctl.TRC (this file becomes more too)
  2009-07-14 15:18:20 WARN Thread-3094902608 http: snmehl_connect: connection failed (a.b.c.d:1158): Connection refused (error = 111)
  
  
  What's wrong? And how to start 'EM?
  Thank you!

  It seems that the server.xml file is empty. Server.XML will be truncated when the file system was full. Truncate the logs periodically to avoid this problem in the future.

  See metalink note: 746250.1

• Data acquisition period log rate Counter

  I measure and record the duration of a pulse train of digital entry (entry to the NI9421 card on a DAQ, series "C" chassis and recorded via LabVIEW SignalExpress 2009).  The acquisition stage 'Counter period' is configured to use ' 1 meter"measuring method.

  In order to save the data that I have to use ' 1 sample (on request)"acquisition mode.

  When I go through the saved data, how can I determine:

  (a) the sampling frequency of the recorded data points?

  point b) absolute timestamp of all the data?

  The log file has no information concerning the frequency of recording and my experiences, it seems to change based on the measured period of entry.

  Any ideas?

  Hi a.yearsley,

  Counters on cDAQ chassis 1st generation (9172) do not support measures clocked sample period.  I assume you are using this chassis since you mentioned that you have the module in slot 5 or 6.

  Your County of edge is very similar to the method of meter high frequency 2.  In both cases, you specify a length of time and count the edges of your external signal during this period.  The 2nd counter is used to generate the gate signal for the duration of time specified.  Your error with this method is up to 1 time of the external signal, it is more commonly used with higher frequency signals (I don't know what is the frequency of the signal).

  The standard method of 1 meter counts the number of ticks to a time base internally (80 MHz) for a period of the input signal.  As the signal itself, it is what is blocking the measure, the sample is locked in the buffer on the edge of the signal and is not clocked independently.  If you wish, you can configure the implicit synchronization, which gives you a period measured for each face of the input signal.

  Taking the stage above an idea more far, you could just set up a task to County of edge with the time of 80 MHz as the source database.  Use the external signal as a sample clock.  The only difference between this and using the standard period with implicit synchronization measure is that the counter is not reset after each sample.  This could make it easier to follow if you want to save a sample all the x seconds (that is, once the total passes a certain value).  You can find the period by subtracting the consecutive numbers and multiplying by the period of the time base (12.5 ns).  The meter would be turning after 53.69 seconds about, but if you read the County under the name of U32 there will be no problem with the subtraction (0000 - FFFF = 1 if the numbers are 32).

  If you're on cDAQ chassis 2nd generation (e.g. 9174, 9178, 9188), then you have not actually taken in charge for a period clocked sample measurement.  You can choose to enable a medium or not.  The user manual 9178/9174 has diagrams showing the extent of the clocked sampling frequency that is essentially the same thing (the driver reverse the measurement period for the frequency).  Must be guaranteed at least 1 m from your external signal between the sample clocks, if you use this method.  The clock can come from many sources - I would probably recommend using another counter to generate.

  Best regards

• 6608 period or frequency limit of sampling frequency

  I use a card counters/timers 6608 and want to measure the period of a square wave of variable frequency.

  I need the period of each rising edge because this same front is used for my external clock analog data acquisition cards.

  In this way, I know the time between measures of individual position.

  I used the example VI soul ctr.vi hollow low frequency Freq 1 and add the code appropriate to read continuously.

  I use a function generator to test the equipment and it seems to work fine until 100 kHz.  After that the 200141: data has been replaced before it could be read - error takes place.

  This error takes place at exactly the same number of pulses every time I try running at a given frequency.

  I could not find information that would be me index a limit to the frequency of measurement period on this map.

  If anyone else has had a similar experience and it is a limitation or is there a setting I'm missing?

  Thank you

  DVS,

  Please post on the Forums of NOR. This overflow error memory buffer that you see is because our advice of counters/timers have a buffer FIFO of two samples for counter measures. What you run, however, is the fact that you take action as soon as your computer can DMA transfer these measures out of the buffer. I would suggest trying to use other measures to counter as "two meter - range" to see if that would help you take frequency readings higher.

  Our documentation on the FIFO can be found here. I hope that clarifies the question a bit, thanks!

• Questions on the retention period of Audit SACLS log (FS7600-FluidFSv4)

  Hello

  To save the audit log SACL for a year.

  However, I couldn't find the setting of shelf life.

  I have two questions.

  1.) is it possible to change the retention period?

  (2.) what is the default value of the retention period?

  Please me advice.

  Config #SACL # #.

  Node0:supportShell > cliUtil management

  CLI > NAS - volumes change advanced settings - - SACLAuditPolicy< success&failure="" failure="" success ="" none="">

  CLI > display NAS-volumes

  CLI > list audit events

  #####

  Better subject.

  Kensuke Maeda

  Kensuke-san,

  My apologies for the late reply.  The journal of the SACL allows to store up to 100 000 events before flipping and overwrite older events.   There is no way to change this value.

  With respect,

  Don Williams

• I have a redemption code, I used now when I logged my cc his watch App still the trial period and if I click on buy now it takes me to buy the plan page but I have already bought the plan. why it is not working?

  I have a redemption code, I used now when I logged my cc his watch App still the trial period and if I click on buy now it takes me to buy the plan page but I have already bought the plan. why it is not working?

  Hello

  Please see -https://helpx.adobe.com/manage-account-membership/cc-reverts-to-trial.html

  Make sure that you are connected to your adobe id.

• I bought and installed Lightroom 6.  It works but there is a message saying that my trial period has expired and when I try to log in to Lightroom on my iPad it says the same thing.  How can I fix it?

  I bought and installed Lightroom 6.  It works but there is a message saying that my trial period has expired and when I try to log in to Lightroom on my iPad it says the same thing.  How can I fix it?  I got a trial of Lightroom CC before I installed.

  allen456 wrote:

  Is there anyway that I can go to CC without losing all my investments in Lightroom 6?

  No, it is not AFAIK. You can try back LR 6 and then buy the subscription of photographers. You will need to contact Adobe about this.

  Note that this is not Adobe. This is a user to user forum.

  Do a search for Adobe product return.

• Try to buy the trial period in a different e-mail - message error "error in your account order has been registered for another country. Please log out and log in with an existing account for this country. OK ".

  Try to buy the trial period in a different e-mail - message error "error in your account order has been registered for another country. Please log out and log in with an existing account for this country. OK @.

  Hi boags2014,

  Please refer to this link and get to know the alternatives for the same:

  How to complete a purchase when I get an incorrect error 'country '?

  Kind regards

  Ana Maria