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Technical bases of e-learning at Faculty of Electronic Engineering. Mr Vladimir Ćirić , mr Oliver Vojinovi ć, Dipl. Ing. Dušan Vučković, mr Aleksandar Stanimirović. Outline. Implemented system’s components Infrastructure and servers Moodle components Course example.
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Technical bases of e-learning at Faculty of Electronic Engineering Mr Vladimir Ćirić, mr Oliver Vojinović, Dipl. Ing. Dušan Vučković, mr Aleksandar Stanimirović
Outline • Implemented system’s components • Infrastructure and servers • Moodle components • Course example
E-learning system components • Hardware • Operating system • LMS • Course materials • Network infrastructure Courses LMS Net Operating system Hardware
Communication chanels Student 1 4. – collaboration Student 2 1 – learning Courses Student 3 LMS Net . . . Operating system 2. – consultations Hardware student 4 3. – monitoring, testing Teacher
Hardware IBM x3550 server IBM x3550 server IBM x3300 Storage
Operating system VMware ESX VMware ESX
VMware infrastructure features • The major advanced features: • Hardware level virtualization – no based operating system license is needed, ESXi installs right on your hardware (bare metal installation). • VMFS file system. • SAN Support – connectivity to iSCSI and Fibre Channel (FC) SAN storage, including features like boot from SAN • Local SATA storage support. • 64 bit guest OS support. • Network Virtualization – virtual switches, virtual NICs, QoS & port configuration policies, and VLAN. • Enhanced virtual machine performance – virtual machines may perform, in some cases, even better in a VM than on a physical server because of features like transparent page sharing and nested page table. • Virtual SMP – see advanced feature #4, below. • Support for up to 64GB of RAM for VMs, up to 32 logical CPUs and 256GB of RAM on the host.
VMware infrastructure features • VM High Availability (VMHA) • With 2 ESX Servers, a SAN for shared storage, Virtual Center, and a VMHA license, if a single ESX Server fails, the virtual guests on that server will move over to the other server and restart, within seconds. • VMotion • With VMotion, VM guests are able to move from one ESX Server to another with no downtime for the users. • VMware Consolidated Backup (VCB) • VMware Consolidated Backup (or VCB) is a group of Windows command line utilities, installed on a Windows system, that has SAN connectivity to the ESX Server VMFS file system. With VCB, file level or image level backups and restores of the VM guests can be performed, back to the VCB server.
Servers VMware ESX VMware ESX
LMS platforms • Open source • Sakai • Moodle • ATutor • Claroline • Commercial platforms • Blackboard • WebCT • Desire2Learning
Lessons Forum Tests Assignments Chat Calendar Glossary Wiki Resources Tools supported by Moodle
Grading scale • 10% attendance • 40% e-learning lessons • 30% labs • 20% final test • Certificate >50%
Concluding remarks • System is implemented on two x3550 servers equipped by data storage system • VMware “bare metal virtualization” was used • Moodle as a LMS was employed