HA Cluster with Linux Containers based on Heartbeat, Pacemaker, DRBD and LXC

https://www.thomas-krenn.com/en/wiki/HA_Cluster_with_Linux_Containers_based_on_Heartbeat,_Pacemaker,_DRBD_and_LXC The following article describes how to setup a two node HA (high availability) cluster with lightweight virtualization (Linux containers, LXC), data replication (DRBD), cluster management (Pacemaker, Heartbeat), logical volume management (LVM), and a graphical user interface (LCMC). As a result you will get a very resource- and cost-efficient shared-nothing cluster solution based completely on […]

Linux I/O Performance Tests using dd

https://www.thomas-krenn.com/en/wiki/Linux_I/O_Performance_Tests_using_dd Under Linux, the dd command can be used for simple sequential I/O performance measurements. This article will provide valuable information about which parameters should be used. For more detailed I/O performance benchmarking, the Flexible I/O Tester (Fio) can be used. Basics dd can be used for simplified copying of data at the low level.[1] […]

Gogs on Ubuntu 16.04

https://www.invik.xyz/projects/Gogs-on-Ubuntu-16.04/ A couple of posts ago I was writing about software version control systems, and mentioned that I wanted to start learning Git in order to switch over to it. Part of the fun in it was using GitHub to store my public code, but I would also need some place to store code that […]

Fix: Recycle Bin is corrupted in Windows 10/8/7

http://www.thewindowsclub.com/recycle-bin-is-corrupted-windows If your Recycle Bin is corrupted, you can face various problems when using it.  The Recycle Bin may not show the files that you may have been deleted from your File Explorer, or you may be unable to delete the files in it – or even empty the Recycle Bin completely. At times you may […]

You are here: Home >> Posts >> Database Administration >> The Accidental DBA (Day 21 of 30): Essential PerfMon counters The Accidental DBA (Day 21 of 30): Essential PerfMon counters

https://www.sqlskills.com/blogs/jonathan/the-accidental-dba-day-21-of-30-essential-perfmon-counters/ his month the SQLskills team is presenting a series of blog posts aimed at helping Accidental/Junior DBAs ‘keep the SQL Server lights on’. It’s a little taster to let you know what we cover in our� Immersion Event for The Accidental/Junior DBA, which we present� several times each year. You can find all the […]

SQL monitor

https://www.brentozar.com/archive/2006/12/dba-101-using-perfmon-for-sql-performance-tuning/ Now that you’ve got the hang of adding counters, here’s the full list we need to add, including the ones mentioned above: These are listed OBJECT first, then COUNTER Memory – Available MBytes Physical Disk – Avg. Disk sec/Read Physical Disk – Avg. Disk sec/Write Physical Disk – Disk Reads/sec Physical Disk – Disk […]