I am asking about a virtual IP for SQL Server, is there a way we can assign a different IP to SQL Server other than the server's(host) IP address? like the same what we do in a clustered env.
View 3 Replieswhat is the maximum size of a DB hosted on SQL 2012 cloud environment?
View 3 Replies View RelatedSQL server, by-mistake I updated values of a column in a database hosted online, is there any way undo the transaction. I didn't created any backup of the database. I read that still it can be recovered through the .ldf (log file) but unable to access it. Is there anyway to get access of the Log file or is there any way to recover the data.
View 1 Replies View RelatedWe have a bought in application written in Visual Basic 6 using ADO 2.7 to connect to SQL Server. The application has two connections strings and uses internal logic to determine which of the two connection strings connects to a read-write database. It does something as simple as trying an update that makes no changes to a very small table somewhere.
Previously this application connected to a Mirrored Database hosted on two Windows Server Failover Clusters and SQL Server 2005.For the future the App will be connecting this application to a SQL Server 2014 Availability Group.The Availability Group is made up of four servers, in a cluster, two at one site on Subnet A and the other two at a second site on Subnet B. The Availability Group has been given a Listener with a DNS name of AGLISTEST on port 1433 with two Static IP addresses, one for each subnet.
Our Contractor has configured the Application’s connection strings to connect to the two Static IP addresses assigned to the AG. He is of the opinion that although ADO has zero understanding of an Availability Group, at least one of the Static IP Address will translate to the Availability Group primary server because it is a Cluster Resource and so act like a Cluster IP Address on Windows Server Failover Cluster; i.e. sort of mimicking the previous configuration. This does work and he has demonstrated it, however I can’t find any article that proves to my satisfaction this is intended behavior not something that accidentally works. If it is accidental behavior then that would be something that might stop working at an unexpected point in the future.
All the research I have found relates to connecting to the AG Listener name, and all the multi-subnet issues and Active Directory issues that go with connecting using what is a legacy client.So; the question is, is this translation / redirection of static IP Addresses assigned to an Availability Group listener documented and safe?
IF you need to change the IP Address of a SQL Server Failover Cluster instance, here is the steps:
1. Open up Failover Cluster manager.
2. Expand the MS Cluster Instance that your SQL Cluster instance resides on.
3. Expand Services and applications.
4. Select the SQL Server Service.
5. In the main window pane (Middle Screen), you should see your SQL Server Cluster name, expand the plus to the left of it.
6. Under your SQL Server Cluster name, you should now see an 'IP address' section, right click on it and go to properties.
7. In the properties pane, you can change your IP address by entering a static IP.....or assigning a DHCP enabled IP.
I am setting up SQL 2014 always on. I was able to set up the replicas between 2 servers in the same subnet.Their IP addresses are say like this:
100.20.200.200
100.20.200.201
When I am trying to introduce another node into the cluster which has IP address like 100.10.101.102, I am getting an error that the server isn't reachable.
I got 5 SQL Servers 2008R2 (2x CPUs with 96-384Gb of RAM) with total 1500DBs and around 10Tb of allocated data. Now
I am forced to upgrade to 2012 and 2014, but the old hardware is overkill.
Is it possible to consolidate this to a large SQL AlwaysOn cluster?
We pros/cons could it be to have 2 or 4 nodes?
2 or 4 sockets servers?
My goal was to use ~20 cores Enterprise license on active server.
Dead lock is coming in select query in application because of index. It is identified after enabling trace in database and identified by reading deadlock xml file. After index removal, deadlock is not coming in same query. But it is affecting query's performance slightly. Is it correct way to remove index if dead lock is coming because of index?
View 3 Replies View RelatedI have installed 2 node windows Fail-over clusters successfully. But QUARUM Configuration is not appearing in Failover cluster manager instead "Witness: Disk (Disk Cluster 4)". I have also configured quarum configuration from Quarum "Configure Cluster QUARUM Settings". I have attached the snapshots of windows cluster configuration. Is it the issue or not. I have not got any warning and error during cluster validation while installing Windows failover cluster. I am assuming it is okay and i can move ahead to installation of SQL Failover cluster setup.
Products used for installation in Virtual Machine:
Windows Server 2012 R2
SQL Server 2012 R2
Note: Service Pack is not installed.
We had a big issue today during maintenance work in our SQL environment.
So our environment:
- 2x SQL Server 2014 Enterprise on Windows Server 2012 R2 (SRV1 and SRV2)
-- Both Hyper-V VMs on different Hosts
-- Both configured to an Windows Failover Cluster and AlwaysOn Availability Group (AG1)
-- AG Listener: AG1_lis
-- No shared storage (each Hyper-V Host has its own local storage)
-- Asynchronous Mode
-- SRV1 is primary, SRV2 is secondary SQL node
What happened?
- Shutting down Windows on SRV2 due hardware maintenance
- Cluster goes offline, AG1 goes offline
-- Error message: "Stopped listening on virtual network name 'AG1_lis'."
-- Error message: "The availability group database "DatabaseXY" is changing roles from "PRIMARY" to "RESOLVING" because the mirroring session or availability group failed over due to role synchronization."
Results?
- AG1_lis wasn't available for our applications and they stopped working properly because database connection was lost!
I think, I HOPE, this is not the normale behaviour when one node is shutting down (especially the secondary node!)
I have the following SQL FCI configuration:
NODE1 -256GB
INST1 - 64GB min/64GB max
INST2 - 64GB min/64GB max
NODE2 - 256GB
INST3- 64GB min/64GB max
INST4- 64GB min/64GB max
With this configuration and if all instances are running on the same node there will be enough memory for them to run. Knowing that normally i ll have only 2 instances in each node wouldnt it be better the following config?
NODE1 -256GB
INST1 - 64GB min/128GB max
INST2 - 64GB min/128GB max
NODE2 - 256GB
INST3- 64GB min/128GB max
INST4- 64GB min/128GB max
With this configuration and in case all the instances (due to a failure) start running on only 1 node, SQL will adjust all instances to just use Min memory specified?
Can we add physical nodes and VMs to windows cluster?
View 7 Replies View RelatedI need to create a named instance on a sql cluster.
How do I perform this? Is it as simple as creating a named instance on a standalone machine? Is there anything I need to consider?
I have been facing following Error in Failover cluster setup as below. I have prepared 2 node and 2 instance sql server failover cluster on top of windows failover.I have deleted MTCBJINS07 in AD and recreated even after, problem is not solved. MTCBJINS07 is my 2nd sql instance sql server network name.
Cluster network name resource 'SQL Network Name (MTCBJINS07)' failed registration of one or more associated DNS name(s) for the following reason:
DNS bad key.Ensure that the network adapters associated with dependent IP address resources are configured with at least one accessible DNS server.
We have a SQL 2014 active passive cluster with 5 instances. When the cluster was installed one of the nodes was a virtual machine. As we started to have problems and this is not a Microsoft supported configuration we decided to replace the virtual node with a phyiscal one. On 3 of these 5 instances we configured static ports (1433 TCP) this was required for applications and firewall implementation.
Now with the physical node joined to the cluster we have issues with these three instances. Whenever one of these instances is moved to the passive node the server authentication is changed from mixed to windows only. I'm no SQL expert at all but to me it looks like the configuration of the instances are not replicated to the passive node? I found some similar problems on the net but these are mostly under sql 2008.
I'd like to capture the change event when it happens and have both a record posted to a table and an email notification to the DBA.
View 7 Replies View RelatedDue to a SQL 2014 cluster installation failure related to security while setting up the primary node, I had to remove the node and any related installation programs from the node and redo the installation again. However I am unable to use the machine name as the SQL network name during the instance configuration, I get the following:
Microsoft.SqlServer.Chainer.Infrastructure.InputSettingValidationException: The SQL Server failover cluster instance name "MachineName" already exists as a server on the network. Specify a different failover cluster instance name.I am still getting the same name since the node name "MachineName" is listed under the cluster name. I have used machine name as SQL network name without an issue. I do not have any existing SQL machine name in network using same machinename which I want to use for this installation.
I have configured windows failover clustering 2012 on 4 of my test nodes.
I am trying to add another node into this cluster but its not happening. I am not even able to start the cluster service in services.msc
After installing windows failover clustering, when I go to the C:WindowsCluster folder, I am unable to find CLUSDB, CLUSDB.1.container, CLUSDB.2.container and CLUSDB.blf files in the folder.
These files are very much present on the other nodes where cluster service is running.
I tried copying these files manually to server where its missing but still no luck.
How can I easily identify who dropped a table?
View 8 Replies View RelatedWe have a SQL 2014 AlwaysOn availability group running on two Windows 2012 R2 servers that are in the same subnet. We created a new server in a second subnet, installed SQL, joined the server to the Windows cluster, added a new IP resource for the new cluster, and performed the other remaining steps to add a new AG replica to the SQL instance on this new server. When we try to move the core cluster resources to the new node to test failover, we get an error. Here's the command we've been using:
Move-ClusterGroup "Cluster Group" -Node node3
and it returns the error: The operation failed because either the specified cluster node is not the owner of the group, or the node is not a possible owner of the group...I've checked the ownership of the cluster groups and the cluster resources and it looks like they are set appropriately:
>Get-ClusterGroup | Get-ClusterOwnerNode
Cluster Object Owner Nodes
---------------- ---------------
Available Storage {}
Cluster Group {node1,node2,node3}
SQLAG {node1,node2,node3}
[code]....
We've double-checked that all IP resources are in the right subnets and that the dependencies for the Cluster Name resource and the Listener Name resource are set appropriately. I'm not sure what else to check since the PowerShell commands seem to indicate that node3 is an owner of the appropriate resources. What other things need to be checked or if the ownership being checked isn't the same as what PowerShell is checking?
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.
Hi all,I have recently changed IP addresses on my MS SQL cluster (the new IPaddresses belongs to a different network). Both physical node's IPaddresses and resource's IP addresses have been changed.Everything seems to work fine. The cluster is up and respondingnormally. The resources failover to another node when needed correctly.However, I have noticed that the time it takes for the resource tofailover to another node is much longer than in the past (before IPaddresses change). I have noticed that "Network Name" is the resourcetype that causes the delay. Could you please advise if there issomething that I overlooked and needs to be changed.updated as well, sothat groups fail over faster?Thanks,Aleu
View 5 Replies View RelatedI have a requirement to implement CDC for 50+ tables to implement incremental data changes warehouse/reporting rather than exporting the whole table data. The largest table is having more than half a billion records.
The warehouse use a daily copy of OLTP db (daily DB refresh). How can I accomplish this. Is there a downside in implementing CDC just for the sake of taking incremental changes on the tables?
Is there any performance impact if we enable CDC on OLTP db?
Can we make use of the CDC tables on the environment we do daily db refresh so that the queries don't hit OLTP database?
What is the best way to implement CDC to take incremental changes for reporting.
I want to set up a database role so that users can use sp_readerrorlog through SSMS. It does a check on membership in the securityadmin role.
I have tested it and can see you can grant execute on xp_readerrorlog but the SSMS GUI uses sp_readerrorlog.
I thought I could create a user/certificate and add the signature to sp_readerrorlog but it's not permitted (likely because it's not a normal database object).
So the other solution is to add the users to the securityadmin role but then explicitly deny alter any login (best done with a custom server role in 2012+ but otherwise just manually in 2008). I tested this out and it works, I'm not able to alter any logins or increase my own permissions, I also did a check of what's reported from fn_my_permissions(null, null) and it shows minimal permissions like I'd expect.
how to update a SQL 2012 DB that is hosted off-site with a SQL DB that is running locally. This is a situation where the updates are one-way, local to remote.
View 5 Replies View RelatedCurrently running SQL Server 7.0 on numerous Windows NT 4.0 SP6 servers.
Need to change the IP address of these servers to a private scheme.
What effect will this have on SQL Server 7.0
Thanks
I don't know much about MS SQL-Server. I'm having SQL server 2000 andgoing to change IP address of the server. What need to be done?
View 1 Replies View RelatedI've recently started working with a public sector organisation who have 4 clustered sql instances that has 80% of it's db mirrored.
Looking at the transaction log - it seems that a transaction log backup is a good idea as the log is 4x larger than the data file.But I'm not allowed access to the physical server to check onto which drive I can create the trn. No RDP, no vmware - let's be honest I'm not even allowed to launch cmd line Also the Server Manager informs me "We will need to carefully look at database backups if you guys want to start doing these backups on box, as that will break our off box backup routine (it will screw the transaction chain)."
I don't understand how backing up the transaction log could break the "transaction chain"?
We are trying to create some alerts in our SQL Server 2014 BI edition.Issue is that, after I chose "Type" as "SQL Server performance condition alert" nothing is listed in the "Object" list box.SQL Server event alerts are working. Issue is only with "SQL Server performance condition alert".
View 3 Replies View RelatedI Run All checks for Validation cluster.I get Error On Disk Lists And Validation failed.With This error : Failed to prepare storage for testing on node "server name" The security account manager (SAM) or local security authority (LSA) server was in the wrong state to perform the security operation.
View 2 Replies View RelatedWe recently had a problem with DB Mail. SQL jobs that sends an email succeeded but the email in the job fail to sent. There was a problem with the email server. The error is included. We fixed the problem with the email server. How can I get an alert when a DB Mail email fails send?
Date4/23/2015 10:01:06 AM
LogDatabase Mail (Database Mail Log)
Log ID5907
Process ID13204
Mail Item ID5702
Last Modified4/23/2015 10:01:06 AM
Last Modified Bysa
Message
The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 1 (2015-04-23T10:01:06). Exception Message: Cannot send mails to mail server. (Insufficient system storage. The server response was: 4.3.1 Unable to accept message because the server is out of disk space.).
)
We have oracle linked server created on one of the sql server 2008 standard , we are fetching data from oracle and updating some records in sql server . Previously its working fine but we are suddenly facing below issue.
Below error occurred during process .
OLE DB provider "OraOLEDB.Oracle" for linked server "<linkedservername>" returned message "".
Msg 7346, Level 16, State 2, Line 1
Cannot get the data of the row from the OLE DB provider "OraOLEDB.Oracle" for linked server "<linked server name>".
Is it possible to have Analysis Services in both modes or are they mutually exclusive?I have a machine setup with Multidimensional AS and would like to know if it's possible to add a Service in Tabular mode.
View 2 Replies View Related