we're running a mirrored database with High Availability for Automatic failover including a Witness instance for a web application.
When doing a manual failover on the database in Management studio, the roles are switched correctly and the database is in "Principal, Synchronized" and "Mirror, Synchronized/Restoring" mode. The web application has no problems switching servers by using client failover with the jdbc driver. There is no problem accessing the database with Management Studio.
However, if we stop the SQL service on the Principal server the role is automatically failed over to the Mirror server by the Witness. The database is then in the mode "Principal, Disconnected" which should be fine. However, accessing the database from the web application or with Management Studio yields some strange results. It is not possible to write to the database, and reading from the database works inconsistently (the web application seems like it can do it, but not from the Management Studio).
Starting the SQL service on the former Principal server makes the database go into mode "Mirror, Synchronizing/Restoring" and "Principal, Synchronizing". And it will stay that way indefinitely. There are not that many updates/transactions made to the database that can make it stay in this state, especially if you can't write to the database in the first place.
The next step taken after being stuck in this state is to stop the SQL service on the Mirror (former Principal), restart the service on the Principal (former Mirror). Accessing the database now works. The database is in mode "Principal, Disconnected". Starting the SQL service on the Mirror (former Principal) makes the database go into the normal "Principal, Synchronized" and "Mirror, Synchronized/Restoring" mode. Access to database is normal.
The same erroneous behaviour can be observed by unplugging the network cable on the Principal server, so it seems like we can only get a smooth transition by doing a manual failover.
Any ideas on what might be the problem? Has anybody experienced a similar situation?
Hi there, I am testing the db mirroring, making sure it will auto failover. I've stopped the SQL services on my principal and then I looked at the mirror db is says it's restoring. It stayed like that for 10 min before I enabled the mirroring again. Anyone knows why it's not failing over??????
Here's my setup: SQL 2005 Standard, Server 1 Principal, Server 2 Mirror & Witness.
We've recently set up a Principle, Mirror and Witness configuration with the Mirror and Witness in a separate building to the Principle. All three are part of the same domain (DMZ) and are different servers, the buildings are connected via a fiber optic cable. All servers and SQL Server instances are logged in with the same domain admin account DMZesAdmin.
Mirroring is all set-up and the databases are synchronized. Every once in a while some (not all, normally 6 out of 15) databases will switch roles and become active on the mirror. The SQL Server mirroring monitor job then reports:
Date 25/01/2007 12:37:01 Log Job History (Database Mirroring Monitor Job)
Step ID 1 Server DMZSQL01 Job Name Database Mirroring Monitor Job Step Name Duration 00:00:02 Sql Severity 16 Sql Message ID 32038 Operator Emailed Operator Net sent Operator Paged Retries Attempted 0
Message Executed as user: DMZesadmin. An internal error has occurred in the database mirroring monitor. [SQLSTATE 42000] (Error 32038). The step failed.
I have no idea, what causes the failover, it could be a slow network or a bad set-up, can anyone give me some ideas of what to do to track down the problem or any experience of what could be causing this, it happens randomly every day or three. No warning and if I go to the mirror and failover back to the principle again then it's all just fine. However I don't want half my databases working on 1 server and half on the other.
Any ideas?
Thanks Ed
UPDATE:
I've just been looking at the logs on my Mirror and at the same time it reports in this order
Error: 1479, Severity: 16, State: 1.
The mirroring connection to "TCP://DMZSQL01.dmz.local:5022" has timed out for database "WARCMedia" after 10 seconds without a response. Check the service and network connections.
Database mirroring is inactive for database 'WARCMedia'. This is an informational message only. No user action is required.
Recovery is writing a checkpoint in database 'WARCMedia' (41). This is an informational message only. No user action is required.
The mirrored database "WARCMedia" is changing roles from "PRINCIPAL" to "MIRROR" due to Failover.
Database mirroring is inactive for database 'WARCMedia'. This is an informational message only. No user action is required.
...
This looks like a time out, is there any way to set the TimeOut threashold for Database mirroring or set retry intervals??
3 servers - PRINCIPAL IP: 10.2.5.31 - DNS Lookup: db-server-2.mosside.choruscall.com - MIRROR IP: 10.2.5.30 - DNS Lookup: sql-mirror.mosside.choruscall.com - WITNESS ip: 10.2.5.32 - DNS Lookup: sql-witness.mosside.choruscall.com
Each Server is running Windows Server 2003 Enterprise Edition with SQL Server 2005 Enterprise Edition. All server instances are enabled for remote connections(By default they are not). All servers have the flag 1400 traceon and have been restarted. PORT 5022 is unrestricted on network.
The server instances are connecting via certificates. Each server has an endpoint for the certificates to to connect on.
Certificate Setup Proceedure:
Principal_Host:
1. Create Master Key with Password
2. Create certificate with subject
3. Create endpoint for certificate (Listener_Port = 5022, Listener_ip = all) to connect on for database_mirroring
4. Backup Certificate (principal_cert.cer)
5. Take backed up certificate to Mirror_Host
(Reapeat Steps 1-5 for Witness and Mirror)
Mirror_Host: Create Certificate on Mirror_Host for inbound connections from Principal:
6.(On Mirror_Host) Create Login for Principal using same password in step 1 (principal_login)
7. Create user for login just created. (principal_user)
8. Create local certificate for Principal on Mirror using certificate generated by principal.
ex: Create Certificate Principal_cert Authorization Principal_user FROM FILE='c:principal_cert.cer'
9. (If an endpoint has been created already on the mirror)Grant connectiion to the login:
ex: Grant connect on endpoint::mirror_endpoint to principal_login
Repeat Steaps 6-9 for Principal and Witness Servers accordingly.
10. Import Database to SQL Server 2005 Principal Instance
11. Backup Database to disk with format
12. Backup Database log file to disk with format
13. Copy backups to mirror
14. Restore Database and log file with norecovery on Mirror_Host
15. Configre Database for Database Mirroring on Principal Server
There are two ways to do this. Via the wizzard or via the Transact-SQL window. Using the wizzard appears to work since I started using FQDN.
PROBLEM:
After configuration, everythig appears to be correct. That is, the principal displays that it is the principal and it is synchronized with the mirror. The mirror also displays that it is the mirror and it is synchronized with the principal and it is in recovery. If I failover manually, the mirror becomes the principal and the principal becomes the mirror (They form a quarum). If I disconnect the principal from the network, the mirror is supposed to form a quarum with the witness and promote itself to principal status. This is not what is happening. The witness recognizes that the principal is down and logs that info into its log file. The Mirror attempts to contact the witness but cannot log onto the machine. The Mirror Logs the following:
Error: 1438, Severity: 16, State: 2. The server instance Witness rejected configure request; read its error log file for more information. The reason 1451, and state 3, can be of use for diagnostics by Microsoft. This is a transient error hence retrying the request is likely to succeed. Correct the cause if any and retry.
<<<<<<<MIRROR SERVER >>>>>>>>
2007-09-06 15:08:45.32 spid23s Error: 1438, Severity: 16, State: 2. 2007-09-06 15:08:45.32 spid23s The server instance Witness rejected configure request; read its error log file for more information. The reason 1451, and state 3, can be of use for diagnostics by Microsoft. This is a transient error hence retrying the request is likely to succeed. Correct the cause if any and retry. 2007-09-06 15:09:05.32 spid23s Error: 1438, Severity: 16, State: 2. 2007-09-06 15:09:05.32 spid23s The server instance Witness rejected configure request; read its error log file for more information. The reason 1451, and state 3, can be of use for diagnostics by Microsoft. This is a transient error hence retrying the request is likely to succeed. Correct the cause if any and retry. 2007-09-06 15:09:25.33 spid23s Error: 1438, Severity: 16, State: 2. 2007-09-06 15:09:25.33 spid23s The server instance Witness rejected configure request; read its error log file for more information. The reason 1451, and state 3, can be of use for diagnostics by Microsoft. This is a transient error hence retrying the request is likely to succeed. Correct the cause if any and retry. 2007-09-06 15:09:45.34 spid23s Error: 1438, Severity: 16, State: 2. 2007-09-06 15:09:45.34 spid23s The server instance Witness rejected configure request; read its error log file for more information. The reason 1451, and state 3, can be of use for diagnostics by Microsoft. This is a transient error hence retrying the request is likely to succeed. Correct the cause if any and retry. 2007-09-06 15:10:05.35 spid23s Error: 1438, Severity: 16, State: 2. 2007-09-06 15:10:05.35 spid23s The server instance Witness rejected configure request; read its error log file for more information. The reason 1451, and state 3, can be of use for diagnostics by Microsoft. This is a transient error hence retrying the request is likely to succeed. Correct the cause if any and retry. 2007-09-06 15:10:25.36 spid23s Error: 1438, Severity: 16, State: 2.
<<<<<<< WITNESS SERVER >>>>>>>>
2007-09-06 14:19:55.90 spid52 The Database Mirroring protocol transport is now listening for connections. 2007-09-06 15:07:11.64 spid24s Error: 1479, Severity: 16, State: 1. 2007-09-06 15:07:11.64 spid24s The mirroring connection to "TCP://db-server-2:5022" has timed out for database "APS_SQL_DEV" after 10 seconds without a response. Check the service and network connections. 2007-09-06 15:07:43.20 Server Error: 1474, Severity: 16, State: 1. 2007-09-06 15:07:43.20 Server Database mirroring connection error 4 '64(The specified network name is no longer available.)' for 'TCP://db-server-2:5022'. 2007-09-06 15:08:06.03 spid9s Error: 1474, Severity: 16, State: 1. 2007-09-06 15:08:06.03 spid9s Database mirroring connection error 2 'Connection attempt failed with error: '10060(A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)'.' for 'TCP://db-server-2:5022'.
I'd like to understand why it is not possible to automatic Failover Availability Groups using Failover Cluster Instances. I think it would be great for DR and HA. Do you understand why that limitation exists?
The link [URL] ....
SQL Server Failover Cluster Instances (FCIs) do not support automatic failover by availability groups, so any availability replica that is hosted by an FCI can only be configured for manual failover.
I have setup a mirror configuration with a witness to be able to use the automatic failover. The principal is DBSP01, the mirror is DBSP02 and the witness is DBSP03. I have an application running an DBCP01. When the mirroring is working, the application can connect to the database on DBSP01. I disconnect dbsp01 from the network, so that DBSP02 becomes the principal. When I try to connect the application to the database on DBSP02, the login fails. Whithout the mirroring I was able to logon to DBSP02, but as soon as it is part of the mirroring, I'm not able to connect to it anymore, whatever the state of the database is. What could be the problem? Can anybody help?
I have a 3 node 2014 AlwaysOn setup. The primary and secondary are set for automatic failover. The third node, of course, is manual (until 2016). The 2 nodes with are automatic are sitting in one datacenter, the third is in another. If the first datacenter was to go down, I would manually have to failover to the third node? What's the normal process here for having two datacenters and ensuring the availability group is always available?
In an sql authentication environment with an automatic failover in database mirroring how to you manage new logins which have been created on the principle since the start of mirroring? Since the master cannot be mirrored, and the mirror database cannot be read during mirroring (except as a snapshot) in order to find the missing logins, I assume that only after failover a script should run to create the new logins and then run sp_change_users_login . The qestions are:
1) should the script create a new login first and then run sp_change_users_login with option update_one , or should sp_change_users_login using option
Auto_Fix create the missing logins?
2) But what is the password of these users? is it initially NULL , as a consequence of sp_change_users_login? What about the SIDs?
3) Or should we bypass sp_change_users_login altogether and use
CREATE LOGIN <loginname> WITH PASSWORD = <password>, SID = <sid for same login on principal server>,...as described in http://blogs.msdn.com/chadboyd/archive/2007/01/05/login-failures-connecting-to-new-principal-after-failover-using-database-mirroring.aspx
4) What is the event that would trigger this script to run after the aitomatic failover ?
Is there a definitive MIcrosoft agreed apon and recommended method to tackle this?
I'm looking for a solution to have cross data center automatic failover in the event of a data center loss for highly critical databases. I would like to have local HA and also automatic failover to the DR site. This does not seem possible with AlwaysOn.
Is my only option for automatic cross data center failover to build a node in one data center and a node in the other data center with a node/FS at a third data center in order to maintain quorum? I'd like to have local HA in the mix but that doesn't seem possible.What pattern for the highest data security and also availability?
An automatic failover set exists. This set consists of a primary replica and a secondary replica (the automatic failover target) that are both configured for synchronous-commit mode and set to AUTOMATIC failover.Configured the both AG Group database automatic failover and synchronous-commit mode.But automatic Failover failed also Cluster service not started automatically at Node2. It got connected through AO Listerner after starting Node1. As below SQL Error log during shutdown Node1
Date,Source,Severity,Message 10/27/2015 10:44:20,spid37s,Unknown,AlwaysOn Availability Groups: Waiting for local Windows Server Failover Clustering node to come online. This is an informational message only. No user action is required. 10/27/2015 10:44:20,spid37s,Unknown,AlwaysOn Availability Groups: Local Windows Server Failover Clustering node started.
I am a C++/C# developer my SQL skills are very limited. I have a database set up for mirroring and I would like to get an e-mail notification whenever an Automatic Failover occurs. Can anyone show me how to do this using SQLServer 2005? Please provide T-SQL script sample if possible!
I have setup a database mirroring session with witness - MachineA is the principal, MachineB is the mirror, and MachineC is the witness. Each SQL Server instance is hosted on its own machine. The mirroring is working correctly. If I submit data to the database on MachineA, and then unplug the network cable on MachineA, MachineB automatically becomes the principal, and I can see the data that I originally submitted to MachineA on MachineB. All the settings are showing correctly in Management Studio.
My issue is with the SQL Native Client and a front-end application that needs to make use of this database. I have setup my front-end application to use the ODBC client and specified the failover server in both the ODBC setup and the connection string. Here is the connection string that I am using :
Everything works perfectly on my front-end application when MachineA is the principal. If I unplug the network cable on MachineA, MachineB becomes the principal, and the failover occurs correctly on the database side. The problem is that my front-end application is not able to query the database on MachineB.
BUT - if I plug the network cable back in on MachineA (making the database on MachineA the mirror), the front-end application now works and can access the principal database on MachineB. I wrote a quick tester application to verify what I am seeing, and I am convinced that this is what is happening. The mirroring is working perfectly, and everything is setup correctly. The SQL Native Client is setup correctly. The problem is that the automatic failover to MachineB that is built into the SQL Native Client only works if both servers are plugged in.
In this scenario, when I plug both servers in, I know that the front-end app is definitely pulling from MachineB (since the mirror database on MachineA is in recovery mode, it's unavailable, and the front-end app displays the server that it is pulling data from).
Am I using an out-dated SQL Native Client? The version number displayed in the ODBC configuration page is 2005.90.2047.00, and is dated 4/14/2006. Has anyone experienced this issue? I'm guessing that it's a problem in the SQL Native client, since the mirroring really seems to be working correctly.
We migrated a DTS Script from the old SQL2000 Server to DTSX to run on the new Server. The script is scheduled to run at 3:30am. When it is executed via the scheduler it fails. If we execute it manually everthing works fine.
The history isn't a big hint either, because the error it contains is always the same, whether the script finished successfull or not.
But if it helps - here it is:
Code BlockDescription: Failed to decrypt protected XML node "DTS:Password" with error 0x8009000B "Key not valid for use in specified state.". You may not be authorized to access this information. This error occurs when there is a cryptographic error. Verify that the correct key is available.
So the above error can't be the reason for the failure! The difference in the history is just the last line - the package executed successfully, step succeeded OR: the package execution failed.
No other hints.
In both cases the step is executed as NT Authorityetwork service. Just the "caller" of the whole script is different, manually it is called by the domain admin (=SA), the scheduler calls by its "working plan"
Can you give me some advice what I can search for or what I can try to fix this (strange) behaviour.
When trying to install SQL 2005 as a failover cluster in a Windows 2003 64 bit SP 2 cluster, I receive the following error when trying to select the installation path after choosing to install as a failover cluster.
_________________________ TITLE: Microsoft SQL Server Setup ------------------------------ The drive specified cannot be used for program location. Program files must be installed on a valid local disk available on all cluster nodes. The valid values are __________________________
There is a knowledge base artical that says this can be from not installing the software with an account with admin permissions on all the servers in the cluster with the 64 bit install, but the account I used is an admin on both servers.
The only thing that I can think is causing the problem is that it is setup to boot from our SAN and it is using one fabric. By default Microsoft Clustering doesnt like this, but we use the newest storeport driver and applied the registry key supplied in KB article 886569 to resolve this. I could not find any documentation showing that this would limit a SQL 2005 Failover Cluster from seeing the shared storage.
Hi we have a two node windows 2003 x64 cluster, each running a SQL 2005 instance. I've added a new node to the cluster and am now trying to set up a new instance of SQL 2005 on the new node (node c). During the install i am getting a failure just after the stage where you choose the features to install. I'm selecting SQL database engine with Failover Cluster. When i click next i get a message which states:
"The drive specified cannot be used for program location. Program Files must be installed on a valid local disk available on all cluster nodes. The valid values are"
I've read a number of articles about possible causes for this and i've checked all the suggested causes but none of these have made a difference. The cluster disk resource is healthy and can be failed between all nodes in the cluster. No errors are generated. I am using an account which has domain admin rights and I can access all admin shares on all nodes. Some of the articles i have referenced are here:
http://support.microsoft.com/kb/907261
http://support.microsoft.com/?kbid=913815
http://blogs.technet.com/mbaher/archive/2007/03/23/clustering-sql-2005-and-administrative-shares.aspx I've tried uninstalling all components etc but still i can't get it to work. The next step is rebuilding the server completely so does anyone have any suggestions?
I've setup a two node Cluster Server (non-shared storage) with a file sharing witness. I'm testing some of the different failover scenarios to see that everything is working properly. Everything works fine until I try testing the failure of the SQL Server service. When I stop the SQL Service on the primary server, it fails over to the secondary server as expected. I then start the service on the (now) secondary server and it comes back online as the secondary server. I then try to test that the service will fail back over when I stop the service on the new primary server.
However, when I stop the service, the secondary server now shows "resolving" and never comes back online. When I bring the service back up on the primary server, the secondary now shows as secondary instead of resolving. So to see if it's something about failing over from one server to another, I do a manual failover making the original primary server the primary again and everything is as it was originally.
I then stop the service on the primary server, but the secondary server now says resolving and the AG will not become available again until I start the service on the primary server.
It seems that when I first configured the quorum it worked fine the first failover scenario, then stopped working. I then added the file sharing witness, and failover worked the first time again, but not after that. For some reason after the initial failover it won't automatically failover again after that.
Config:
Servers: Windows Server 2012 Standard SQL : SQL Server 2012 Enterprise SP1
I'm looking at a setup where they have server1 and server2 in a mirroring relationship with automatic failover.
Server1 is the principalThey are using transactional replication to replicate asingle databse to server3 is AWS.Distribution database is on Server1All Agents (log reader, snapshot, distributor) run on Server1Server2 has not been set up for replication...My understanding is that in this set up you would normallly place the distribution database on a separate server and enable publication on the mirror, Server2.
What happens if they failover? Replication would stop, and presumably records added while the mirror is the active database would not be marked for replication?How would they recover? Failback and reinintialize
1. Once fail over to secondary replica, what will happen to connected session in primary node? can the session fail over to secondary seamlessly or need to re-login. what happen committed transactions which has not write to disk. 2. Assume I have always on cluster with three nodes, if primary fails, how second node make write/ read mode. 3. after fail over done to 2nd secondary node what mode in production(readonly or read write). 4. how to rollback to production primary ,will change data in secondary will get updated in primary.
We have set up Mirroring with a witness server and everything works fine when we failover from the SQL Management console.
However, if we failover when our Maccola client is connected, the client blows up - clearly because it can no longer connect to the database.
The ODBC DSN used by the Maccola client shows a checkbox for the 'select a failover server' but the checkbox is grayed out.
Also the summary of settings for the DSN at the end of the wizard reveals that the failover to server (y/N) option is set to N.
The default setting for this DSN is 'populate the remaining values by querying the server' but it doesn't appear to be getting the settings for failover from the server or any other interactive DSN settings either. The server is clearly set for mirroring.
Another suspicious item is that the DSN cannot connect to the server with SA permissions, even though the server is set to mixed security and we use the correct authentication.
Is it possible that the client MACHINE is not authenticating with the domain or sql server properly. We are logged into the client with the domain account that is the SQL admin account on the sql server box.
We should be able to interact with the sql server settings through the ODBC DSN on the client shoulnd't we?
1. In alwaysON fail over cluster, Once fail over to secondary replica, what will happen to connected session in primary node? can the session fail over to secondary seamlessly or need to re-login. what happen committed transactions which has not write to disk.
2. Assume I have always on cluster with three nodes, if primary fails, how second node make write/ read mode.
3. After fail over done to 2nd secondary node what mode in production(readonly or read write).
4. How to rollback to production primary ,will change data in secondary will get updated in primary.
I am using ODBC to connect SQL Server 2000 + SP4 server runnig on Windows 2003 standard edition Server +SP1. But, sporadically my application server connectivity to DB fails and i receive the following error messages
[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionWrite (WrapperWrite()). [Microsoft][ODBC SQL Server Driver][DBNETLIB]General network error. Check your network documentation.) In D:de.cpp 702 Apr 12 2006 20:34:47 [Microsoft][ODBC SQL Server Driver]Communication link failure) In D:de.cpp 702 Apr 12 2006 20:34:47 20071017 08:23:10 TID (00000ff0) Sev (3) Err (0) Msg (Read failure. General SQL error.
Strange thing is that i receive this error only sporadically, Please Please advice !
Hi, We are working on creating an automatic backup tool for our web application. Our goal is to run a script that "zips" the virtual host/application directory. We have the script to zip the application directory, but is there a way to run a SQL Backup and then zip the output easily? This is where we are struggling. Any Suggestions are appreciated Brent
I am getting an automatic rollback in a transaction that fails to insert a row, via a trigger, due to a duplicate key. The transaction is automatically rolled back and unless the error correctly handled a 'partial update' occurs. Why in the example below is the transaction automatically rolled back (statements 1 to 3) and is there any way of knowing what errors generate an auto rollback. For example if the duplicate key error occurs on the insert into table B below, and not the triggered update, then no auto rollback occurs.
Begin Tran -- 1 insert into A values ('A1') -- 2 updates OK insert into B values ('B1') -- 3 updates OK -- triggers insert into B_Hist -- 4 Fails with Duplicate Key error insert into C values ('C1') -- 5 updates OK Commit Tran -- 6 3902 error No corresponding Begin
Hi all, I am using the odbc connector to get a local table. I want that table to get populated every night automatically. How can i do that? Also i want to check if any existing record is updated/changed in the dsn database. Any help is highly appreciated. Thanks, Jeff.
I don't know very much about Sql Server and need help. I have two primary keys called AirlineCode e ID in the same table. This id is an automatic number. So I don't need to input this value, since it's created automatic. What I need is this ID be created automatic but for each new AirlineCode the ID starts as 1 again. For example : If I put AirlineCode = 220 then ID starts as 1. In another row AirlineCode is also 220, then ID is 2. But in another row AirlineCode = 500, then this automatic number come back to 1. then the rows can be like this :
Dear Friends, I want to Automatically take Backup at 7:00 p.m cutoff Time.and automatically restore the database..to a temporary database,generate my report and delete the database. Friends,this backup & restore should not require any user interface..it should me automatic. Plz can anyone help me out.
I have two sql 2000 server tables one is active and one is terminated (I inherited this db) and I was thinking of having the active table automatically update the terminated table when an employee is terminated. Access is at the front end and in the form of the active table theres a drop down text box that has the employement status(active, terminated, on leave...etc) so when the status turns into terminated i want the acitve table to send those records to the terminated table, ( the data in both tables are not exactly the same). looking into a trigger or stored procedure. This is the first time I've done this so I'm doing some reasearch on how to handle it. Any suggestions
well as I get further into this project of automatic updates I'm fining more and more barriers. The combo list box which indicates whether the employee is terminated or active might be a problem with sql since you cant create a Row source and a Row source type in a sql table. that combo box exsist in the properties of the form. The Row Source Type is a Value List. Shoot :(
I'm a SQL Server 7/2000 DBA and manages about 40 servers in different networks. Every morning I check through the Enterprise Manager if all Jobs (backup, maintenance, etc.) have run successfully. This check costs me 1 hour per day.
Because of a reorganization I've got some new college's and lost some college's. My new college's think this is to much work, so it should be automated. They only want the failed jobs to report an error on a website or something like that, and don't want to check 40 servers. I don't agree in this, because I'm affraid I'm going to miss some errors.
I have initiated database backup plan in 2005,occuring every 2 days.backup plan worked for the first 2 schedules,later backup plans is not working.I have checked the time and date setups,its all fine.how to solve.
