How to enable write cache for 3ware Raid controller

You can check the current cache status and then enable or disable it using the 3ware command line utility tw_cli. First lets see how we can check the current status :[email protected] [~]# tw_cli info c0 Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy ------------------------------------------------------------------------------ u0    RAID-10   OK             -       -       64K     465.641   ON    …

Vim Cheat Sheet

Global :help keyword - open help for keyword:saveas file - save file as:close - close current paneK - open man page for word under the cursor Cursor movement h - move cursor leftj - move cursor downk - move cursor upl - move cursor rightH - move to top of screenM - move to middle of screenL - move to bottom of screenw - jump forwards to the start of a wordW - jump forwards to the start…

Set-Up Master-Slave Replication for PostgreSQL 9.6 on Ubuntu 16.04

What we will do: Install PostgreSQL 9.6.Configure MASTER Server.Configure SLAVE Server.Copy PostgreSQL Data from MASTER to SLAVE.Testing. Prerequisite: 1 Ubuntu 16.04 serverMASTER - Allowing Read and Write - IP: 10.0.15.101 Ubuntu 16.04 serverSLAVE - Only Read - IP: 10.0.15.11Root Privileges Step 1 - Install PostgreSQL 9.6 In this tutorial, we will install…