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Writes are heavier than reads so we'll do RAID-10..
Is it better to setup one large array for all the databases, and then two smaller arrays for log files and tempdbs, or setup a dedicated array for each database/instance.
SQL Server Failover Cluster instances rely on WSFC.
Both Standard and Enterprise Editions of SQL Server support SQL Server Failover Cluster Instances but the Standard Edition is limited to only two nodes.
When using clustering, certain conventions will make administering and managing of the environment a little easier and sweat the assets better.
We shall touch on a few of them briefly: -- Create Table to Store Log Shipping Data create table msdb dbo log_shipping_report (status bit, is_primary bit, server sysname, database_name sysname, time_since_last_backup int, last_backup_file nvarchar (500), backup_threshold int, is_backup_alert_enabled bit, time_since_last_copy int, last_copied_file nvarchar 500), time_since_last_restore int, last_restored_file nvarchar(500), last_restored_latency int, restore_threshold int, is_restore_alert_enabled bit); go -- Create an SQL Agent Job with the Following Script -- This will send an Email at Intervals determined by the job Schedule -- The Job Should be Created on the Log Shipping Secondary Clustered Instance -- This Job Requires that Database Mail is Enabled truncate table msdb dbo log_shipping_report go insert into msdb dbo log_shipping_report EXEC sp_help_log_shipping_monitor; go /* select [server] , database_name [database] , time_since_last_copy [Last Copy Time] , last_copied_file [Last Copied File] , time_since_last_restore [Last Restore Time] , last_restored_file [Last Restored File] , restore_threshold [Restore Threshold] , restore_threshold - time_since_last_restore [Restore Latency] from log_shipping_report; go */ DECLARE @table HTML NVARCHAR(MAX) ; DECLARE @Sec Server SYSNAME ; SET @Sec Server = @@SERVERNAME SET @table HTML = N'' N'' CAST ( ( SELECT td = lsr.server, '', td = lsr [database_name], td = lsr time_since_last_copy '', td = lsr last_copied_file td = lsr time_since_last_restore '', td = lsr last_restored_file, '', td = lsr restore_threshold '', td = case when lsr restore_threshold lsr time_since_last_restore ' ' '; EXEC msdb dbo.sp_send_dbmail @recipients='[email protected]', @copy_recipients='[email protected]', @subject = 'Transaction Log Shipping Report', @body = @table HTML, @body_format = 'HTML' ; One side effect of stacking SQL Server instance and making provision for several databases is the tendency to run out of drive letters.
Stacking SQL Server instances allows you to leverage on this licensing model by having instances share the same set of CPUs (sweating the asset).
We already mentioned that you can stack different versions of SQL Server thus taking care of legacy applications still running versions older than SQL Server 2016 for example.
In our case, we found the name of each Volume Mount Point based on the Cluster Role it was assigned to.Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Visit Stack Exchange We have a number of SQL Server 2008 R2 standard servers, each for a single application that we'd like to consolidate into one physical server.Running perfmon on these servers they're not using a high amount of CPU, IO, or network traffic so they're good candidates for consolidation.A couple of questions: Is it better to create a single instance with multiple databases, or multiple instances (e.g. ) I don't anticipate much contention, but is there a way to do some sort of governance on IO so that no database/instance can take up all the IO resources? On RAID configuration, we'll have 22 disks available (and 2 hot spares).