|
|
| (53 intermediate revisions by the same user not shown) |
| Line 1: |
Line 1: |
| − | ==Introduction==
| + | <center> |
| − | This is the very tricky one, if you are running your server on a bare metal machine.
| + | '''[[SUNScholar/Upgrading|Back to Upgrading]]''' |
| | + | </center> |
| | | | |
| − | If your server is virtualised then this procedure is not needed.
| + | {{DISCLAIMER}} |
| | | | |
| − | To avoid bare metal upgrades in the future, it is highly advised that you virtualise your server. Ask central campus IT to help you with this.
| + | ==[[SUNScholar/Upgrading/Hardware/New Server|Upgrading to a New Server]]== |
| | | | |
| − | If you are presently running bare metal and are going to upgrade to another bare metal server, then read the guidelines below.
| + | ==[[SUNScholar/Upgrading/Hardware/Add a New Disk|Adding a New Disk]]== |
| − | | + | [[Category:System Administration]] |
| − | ==Bare metal to bare metal== | + | __NOTOC__ |
| − | These guidelines are very brief and require someone with Linux experience to execute correctly.
| |
| − | ===Prep new machine===
| |
| − | #Install the same version of DSpace and Ubuntu LTS server software on the new machine.
| |
| − | #Do not create a PostgreSQL DB on the new machine.
| |
| − | #The new machine hostname should be temporary. For example: http://irx.sun.ac.za
| |
| − | | |
| − | ===Export and import contents===
| |
| − | #Export the PostrgeSQL DB from the old machine and import it to the new machine using "pgAdmin". See: http://www.pgadmin.org
| |
| − | #Put the old machine into ''maintenance mode''.
| |
| − | #Copy the entire '''/home/dspace''' folder from the old machine to the new machines '''/home/dspace''' folder using "rsync". See: http://en.wikipedia.org/wiki/Rsync
| |
| − | ===Enable Tomcat webapps on new machine===
| |
| − | #Follow this procedure to enable the java webapps on the new machine: http://wiki.lib.sun.ac.za/index.php/SUNScholar/Install_Dspace/S08
| |
| − | #Check for correct operation of DSpace on the new machine.
| |
| − | | |
| − | ===Swap hostnames===
| |
| − | #Rename the old machine. For example: http://irz.sun.ac.za. Then reboot.
| |
| − | #Rename the new machine so that it has the same hostname as the old machine. Then reboot.
| |
| − | #Check for correct operation of DSpace on the new machine again.
| |
| − | | |
| − | ===Precautionary Principle===
| |
| − | Keep the old machine running for a while until the new machine is stabilised. This way you have a live backup in case of big problems.
| |
| − | | |
| − | ==Comparison of bare metal versus virtual machine==
| |
| − | | |
| − | {|class="wikitable" width="95%"
| |
| − | |- align="center"
| |
| − | !ir1.sun.ac.za
| |
| − | !ir2.sun.ac.za
| |
| − | |-
| |
| − | |
| |
| − | Specifications
| |
| − | |
| |
| − | Specifications
| |
| − | |-
| |
| − | |
| |
| − | Load
| |
| − | | |
| − | [[File:Ir1-load-month.png]] | |
| − | |
| |
| − | Load
| |
| − | |-
| |
| − | |
| |
| − | RAM
| |
| − | |
| |
| − | RAM
| |
| − | |}
| |
| − | '''[[SUNScholar/Upgrading|Back to Upgrading]]'''
| |
