Recovery :: Create New Availability Group
Nov 2, 2015i am preparing for always on with multiple instant.is there any consideration with multiple instant ? with each instant shall i create new availability group?
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Recovery :: Fail To Create Availability Group Listener With Multiple Subnets
Oct 28, 2015I am setting up a new pair of SQL 2014 enterprise servers in HA using Availability Groups. One of the servers is located here in our local datacenter (10.0.1.x) and the other SQL server is in our remote datacenter(172.16.1.x). I was able to setup the Windows Failover Custer without much issue. I setup the AG but when I try to setup the listener. I get the following error. I have setup an IP for both networks on the listener. I have confirmed that there is not any DNS records created for AG listener name. But I still get this error.
View 6 Replies View RelatedRecovery :: Cannot Create Listener For High Availability Group Of AlwaysOn On Cluster Environment
May 27, 2015I have getting issues when i am creating listener for always On . Error shown as below
Can not bring the Windows server fail over cluster (WSFC) resources online. (Error Code 5942). The WSFC service may not be running or may not be accessible in its currents states, or the WSFC resources may not be in a state that could accept the request.
For information about this error code see "system error code" in windows development documentation
The attempt to create network name and IP address for the listener is failed. The WSFC service may not be running or may not be accessible in its currents states or the value provide for the network name and IP address may be incorrect. Check the state of the WSFC cluster and validate network name and IP address with network administrator. (Microsoft SQL Server error 41066) ...
Recovery :: Migrating Existing Availability Group To New Datacenter Availability Group
Nov 20, 2015need to migrate a cluster with an AG dtabases to new data center cluster with AG.
I was wondering if is possible to do mirroring on top of the AG configuration? or what other options could be to migrate a cluster that has 3 nodes and setup the ag databases to a new datacenter.
Recovery :: Availability Group Transaction Log
Sep 12, 2014We're having an issue with an AG where the the log backup does not appear to truncate the log. symptoms..Run full backupRun transaction log backup DBCC Loginfo shows all VLFs with a status of 2sys.databases.log_reuse_wait_desc says LOG_BACKUPOPENTRANS indicates no open trans.All backups are being run on the primary.
View 10 Replies View RelatedRecovery :: Add Database Into Availability Group?
Nov 9, 2015SQL 2012 EnterprisePrimary server and 2 x secondary serversWindows 2012 R2
I have removed one of the database from availability group by mistake. Luckily I am still operational with primary server. database on secondary servers are on restoring mode.
I have done full backup of database from primary (prod) server and restored on secondary servers with no recovery when I add database into availability group I get an error message log missing what is the best method to achieve and add database again into availability group.
Note I cannot restore database on primary server as it is on production
Recovery :: Add Second Node In AlwaysOn Availability Group
Aug 13, 2015How do I add my second (secondary) node in my AlwaysOn Availability Group, after adding my head node, and the secondary node is a virtual machine. See based on the attached file if it is the correct way?
View 2 Replies View RelatedRecovery :: Adding Users To Availability Group?
Nov 9, 2015I am in the process of rolling out a pair of SQL 2014 servers. I have setup an Availability Group, Listener and databases. It's my understanding that I will be giving the listener name to our developers so that they can do their work. In testing, I noticed that If I am using Studio Manager and connected to the the AG using the listener name, when I setup a user in security the user is only added to the active primary node. Is there a way to add a user to both servers in one shot instead of having to install on both servers?
View 5 Replies View RelatedRecovery :: Availability Group Listener Connection Without Port
May 27, 2015In our(my company) current design we want to switch from failover clustering to Always On as high availibility solution.
I am currently testing the availiblity Group Listener function and have two questions regarding this.
First of all, is it possible to connect to a a listener by just using its "name" instead of "name,port", it is for our users very inconvenient to start using ports. If this is possible, where can I find information on how to configure this?
Second, is it possible to use the Availiblity Group Listener as loadbalancer or in combination with a loadbalancer to split the users over two or more nodes?*note we don't use azure.
Recovery :: Move Database Files That Are In Availability Group?
Sep 17, 2015I need to move files for a lot of databases that are all part of an AG. I've used the method at the bottom of this link with success on a small test DB.
View 2 Replies View RelatedRecovery :: Which Replica Becomes Primary When Availability Group Fails Over
Jul 16, 2015I have 3 synchronous AlwaysON replicas: A, B and C. A is primary, B and C are secondary and both are set to Automatic recovery. How can I understand, which of them (B or C) will become primary when A goes offline? Well, Actually my final DB system should support following configuration:
1) Normally - A is primary B and C are sync secondary.
2) if A fails, B automatically becomes primary, C remains Sync secondary.
3) if A goes online, it becomes primary again
4) C becomes primary only after A and B fail (and there still should be cluster quorum!)
As I understood, first of all i should configure quorum the following way: A-0, B-1, C-1, folder-witness-1.
The problem, again, is: I cannot understand how to configure which replica becomes primary when AG fails over.
Recovery :: Connecting To Availability Group Listeners In Different Subnet
Sep 23, 2015I have a web server that is on our DMZ subnet and I have a sql 2014 database server with Always on Availability Groups that is on our internal domain subnet.The failover cluster is on the internal domain subnet as well. I am trying to connect a web application, that is working off the .net 2.0 framework, to an SQL Server 2014 database using the Always on Availability Group Listener.
The connection strings works perfect with the named instance of the sql server but when I try to use the Availability Group listener it timed out. I did some research online and was led to believe that increasing the connection time would resolve it. I did that and got a different error pertaining to a successful connection but an error occurred during the login process (Provider: TCP Provider, error: 0 - The specified network name is no longer available.)
I just want to connect to an Availability Group Listener on the domain subnet. I have rules in the firewall to allow all services for the IP of the Listener. I switch back to the named instance of the same server and it works flawlessly. I have also connected to the Listener while running the application on the same subnet as the sql server without an issue. I have tried the IP instead of the Listeners name and still received the same error on the DMZ subnet. I'm running on Windows Server 2012 R2 on all servers.
The Web Server is using IIS 8.5..All Physical Machines except the replicas and webserver are virtual machines.All Static IPs involved.As mentioned all SQL Servers are 2014.
Recovery :: Setup AlwaysOn Availability Group Between 2 Separate Clusters
Sep 22, 2015I have an active passive cluster on my primary Data center in NY and have a DR Active / passive SQL Cluster in TX. These are two separate clusters in the same domain using the same SQL server credentials.Both clusters host an active / passive SQL instance. Lets call it SQLNY(Primary) and SQLTX (DR). I want to enable always On Availability group within the two SQL Instances SQLNY and SQLTX. The listener will be SQLAG which will be used by the Application to connect to the SQL instance. Is there a practical way to implement this? This will not only give me instant fail over within the NY (Primary) but also give me the flexibility to fail over to TX. I am using SQL 2014 Enterprise Edition on both clusters.
View 6 Replies View RelatedRecovery :: SharePoint Database Run Out Space In AlwaysOn Availability Group
Jul 11, 2014I have a situation where I have two servers in SQL Server 2012 R2 AlwaysOn Availability Group. One is primary and the other one being secondary. I am only running SharePoint Database on it.I have run out of space on the primary server and about to run out of space at the secondary server. I have tried shrinking database transaction log files, but it returns an error that it cannot be shrunk as the database is in the AlwaysOn Availability Group.
Questions:
1. Several forums suggest that databases need to taken out of AlwaysOn Availability Group in order for the shrinking to work properply?
2. Would it have any impact on the database if it is taken out of availability group and then added back?
Recovery :: Is AlwaysOn Availability Group Support SCCM / SCOM And DPM
Apr 29, 2015Is AlwaysOn Availability Group support SCCM , SCOM and DPM ??what is the best Solution for this products to be highly available ??
View 3 Replies View RelatedRecovery :: Availability Group Loses Connection To Secondary Server
Jul 30, 2015I have a SQL 2014 SP1 set of servers with two asynchronous copies of an availability group. One of the asynchronous sites is down and SQL can no longer replicate the changes. I need to understand how long SQL Server can continue this way before the secondary replica will no longer be able to catch up. I assume this is really tied to the transaction log on the primary replica but would like it clarified.
View 4 Replies View RelatedRecovery :: Availability Group Quorum - Majority Of Nodes Down But Cluster Still Up?
Sep 9, 2015I'm just starting to work with AlwaysOn Availability and WSFC.
I have in my environment (in Azure) a DC, WSFC and to SQL instances, so I have 3 nodes in my Failover Cluster:
WSFC
SQL1
SQL2
If I simulate failure by shutting down one of the SQL boxes my Availability group seamlessly fails over to the other SQL instance - which is great.
However, I'm starting to look into the workings of the Quorum, my envt has the default settings and when I shutdown both of my SQL servers I expected the Cluster itself to go offline as 2 out of the 3 votes will be negative, but the Cluster is still up - Screenshot below when SQL1 and SQL2 are shutdown:
Going through the Wizard (but not changing anything) it shows following config:
Recovery :: Unable To Connect To Availability Group Listener From Remote Server Without Using FQDN
Jul 21, 2015Environment: SQL Server 2014 on Windows Server 2012 R2.
We have our availability group configured and working. However, when we try to connect to the AG listener from a remote server, we have to use the fully qualified domain name (FQDN) to connect. We'd like to be able to connect just using the host name. Interestingly, ping actually resolves the IP correctly for either.
Recovery :: Server Local High Availability Using Failover Cluster And Disaster Recovery Using AlwaysOn
Aug 17, 2015We have a requirement to build SQL environment which will give us local high availability and disaster recovery to second site. We have two sites- Site A & Site B. We are planning to have two nodes at Site A and 2 nodes at Site B. All four nodes will be part of same Windows failover cluster. We will build two SQL Cluster, InstanceA will be clustered between the nodes at Site A Server and InstanceB will be clustered between the nodes at Site B, we will enable Always On Between the InstanceA and InstanceB and will be primary owner where data will be written on InstanceA and will be replicated to InstaceB. URL....Now we want we will have instanceC on the Site B and data will be writen from the application available on Site B, will be replicated to the instance on the Site A as replica.
View 6 Replies View RelatedRecovery :: Set Up AlwaysOn Availability Groups?
Sep 16, 2015Can we set up always on availability groups in server 2012 standard edition.
View 3 Replies View RelatedRecovery :: How To Test AlwaysOn Availability After Configuring Them
Jul 3, 2015How to test always on availablity after configuring them.I have configured always on group with 1 active and 1 passive with readonly.I want to test from application.what are cases which we can have for testing.
View 5 Replies View RelatedRecovery :: AlwaysOn Availability And TRUSTWORTHY Property
Sep 18, 2015We have a SQLServer 2012 Always-On Availability (AAG) Primary and Secondary Node installation/environments. On the Primary node, we have some databases that have the TRUSTWORTHY option enabled (Set to ON). But when the databases are synched/added to the AAG the databases loose the TRUSTWORTHY property and are reset to OFF on the Secondary Node.Because of this,When the instance fails over to the Secondary Node the applications that were working don’t work anymore.
View 5 Replies View RelatedRecovery :: Combining Clustering And Availability Groups Listener
Jun 22, 2015We are trying to build HA and DR environment, combining AG and FCI. So we have 3 servers added to a cluster, 2 of them sharing the same storage and working as ACTIVE-PASSIVE cluster instance. The other server has a stand alone instance with its local storage, with the same drivers letters as the cluster instance.
Between the Active FCI and the Stand Alone, we set up an Availability Group. They are running fine, except by the listener. When the stand alone instance owns the Primary Replica, I am able to access the SQL Server instance by the listener, but when the Primary Replica is owned by the FCI, I can't reach the database by the listener (name or IP).
I've opened the same ports in both servers, it hasn't worked though.
Recovery :: AlwaysOn Availability Groups - Download Hotfixes
Oct 19, 2015I'm doing a certification process using AlwaysOn, and was using the link below, and on the lower 90 hotfix, and instead of downloading one by one, and then upgrade one by one updates, is there any way to make it more faster or practical, or unfortunately have to do this one by one, so the download as the update? This rollup contains the latest version of the Windows system files that are updated after the release of SP1. URL...
View 2 Replies View RelatedRecovery :: 2012 R2 High Availability Database Not Replicating?
May 19, 2015Discovered that a geo-spatial AlwaysOn HA database (1 of 4) was not synchronizing as at a point in time earlier in the day. Suspend Data Movement appears to be working perpetually without finishing. The SQL Server services is in a Pending Changes state after an attempt to restart it from SQL Configuration Manager. The Cluster Dashboard says it is in a Not Synchronizing state, with only the one database in question having a yellow triangle, all 3 others show green.
The warning for the cluster is:At least one availability database on this availability replica has an unhealthy data synchronization state. If this is an asynchronous-commit availability replica, all availability databases should be in the SYNCHRONIZING state. If this is a synchronous-commit availability replica, all availability databases should be in the SYNCHRONIZED state. There is no abnormal data movement from the primary to the seconday.The warnings for the unhealthy database are:
The data synchronization state of this availability database is unhealthy. On an asynchronous-commit availability replica, every availability database should be in the SYNCHRONIZING state. On a synchronous-commit replica, every availability database should be in the SYNCHRONIZED state.Either a database administrator or the system has suspended data synchronization on this availability database.So how to get this database back to synchronizing state?
Recovery :: Always On Availability Listener With Multiple IP Addresses For SharePoint 2013
Apr 14, 2014I think theres something I'm missing about AG listeners. My test config is 1 SharePoint WFE & 2 SQL servers configured in an AAG.WFE, SQL1 & SQL2 servers are all on the same subnet.On the WFE, I configured an alias called SP15 to be used for the SQL servers. If I failover from SQL1 to SQL2 I just need to change where the alias is pointing on the WFE. So why do I need a listener? This works fine, albeit manually.I have read on some posts that an automatic failover process is possible. How can I add a 2nd IP address to the listener when both SQL servers are on the same subnet? The GUI doesn't seem to allow this.
View 5 Replies View RelatedRecovery :: Replicate Server Database To AlwaysON Availability Groups
Dec 1, 2015I have configured replication between Always ON Availability Groups (Listener) (PUBLISHER), remote distributor to XYZ SUBSCRIBER...with above link ...
Now, I want to know how to replicate Data from XYZ SERVER a PUBLISHER to Always ON Availability Groups (Listener) (SUBSCRIBER)? Distributor Database being on XYZEX:
XYZ SQL SERVER as PUBLISHER, and DISTRIBUTOR
to
Always ON Availability Groups (Listener) SUBSCRIBER...
Recovery :: AlwaysOn Availability Groups Server Logins Fails When Switching Between Nodes
Jul 9, 2015I am setting up a 3 node cluster as part of an availability group.Initially I tested failover between nodes using SQL Management Studio and everything failed over successfully when I stopped a node, and I was still able to write queries. I started to test with an application which connects using an SQL user and whenever I would switch nodes, I would get login failed. I believe the cause of this issue is because the server logins SID's which are tied to the database are different than the server logins on the other nodes which resulted in login failed.how can I ensure that the server logins SID's are the same between nodes? Is there a way of copying this over or how is this supposed to be done? I read a little about contained databases where I could just set the login on the database itself vs. creating a server login but I would rather not go down that route.
View 4 Replies View RelatedSQL 2012 :: Backup Of Availability Group?
Aug 6, 2015Proposed configuration:
Using a centralized backup server from which to run SQL backups. (this server is not part of this AVG)
AVG with backup preference set to primary.
SQL backup (daily full and hourly logs run from centralized backup server) with target set to AG Listener name.
Any failover should still target Primary Replica.
SQL 2012 :: Reestablish One Database In Availability Group
Jul 29, 2014I've got an availability group with multiple databases, replicating to multiple secondary servers. On one of the secondary servers, some of the databases are not synchronising, and when we try re-establish the sync we get an LSN error. I can't see any obvious way to re-establish only one database on one secondary without affecting all databases on that secondary or affecting that database on all secondary nodes.
The options I seem to have are to either remove the database and then re-add it, in which case this affects all secondary replicas, or to remove the secondary replica and add it, in which case all the DBs are added.
SQL 2012 :: Server Clustered Availability Group
Jul 30, 2014I have 2, 2 node clusters
PROD1(cluster 1) Clustered SQL instance1
PROD2(cluster 1)
DR 1 (cluster 2) Clustered SQL insatace 2
DR 2 (cluster 2)
I have set an availability group up from the PROD instance to the DR instance.How does the AG behave if a SQL instance fails at PROD? Does it try to fail over to Node 2 on Prod before going over to DR? or bring the Replica at DR online straight away? Can we only use Manual Failover of the AG in this scenario to make use of the High Availability of the Windows cluster?
SQL 2012 :: Using Availability Group Listener For UNC Connection?
Sep 10, 2014I have set up a couple of servers in a SQL 2012 AlwaysOn Availability Group (non FCI). I have also configured a Listener which enables SQL clients to connect to the server currently servicing the database, as expected.
I would also like non SQL clients to be able to connect to the server currently hosting the database so that they can run scripts sitting in a share. I don't have a shared disk so just have a directory share on each server with the same scripts in each directory.
I am able to ping and RDP to the listener IP address/name and end up on the correct server but am unable to connect to the share ListenerNameShare. Is that actually supported? If it is, any thoughts on what I need to do to get it going. If it isn't what other options do I have?
SQL 2012 :: Availability Group Listener Port
Oct 26, 2014So I have Availability groups configured as well as the Availability Group Listener, what If I want to change the port that the listener is listening on, do I need to reboot the server or is it dynamic across the board ?
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