ClusterLion Robert Graf | CEO Mobile +43 664 1314403 Email: rg@prolion.at

Overview ProLion-NetApp Alliance High Availability Metro Cluster Challenges ClusterLion Solution ClusterLion vs. Common Solutions ClusterLion Technology Customer Benefits References

NetApp Alliance ProLion CEO Robert Graf: former NetApp Country Manager in Austria, 7 Years @ NetApp ClusterLion only offered for NetApp MetroCluster NetApp Alliance Partner EU Distribution Partner: Arrow ECS

High Availability in IT High Availability is a MUST in today’s IT world! This applies accross industries Mission –critical applications must be available at all times! Therefore, permanent IT availability “Always ON” is a prerequisite for many companies and no longer an option. Any downtime costs money and image

Cost of Downtime The cost by industry and studies vary, but it is clear that IT downtime causes considerable damage!

Split-Brain Syndrome Wikipedia: Split-brain indicates data or availability inconsistencies originating from the maintenance of two separate data sets with overlap in scope, either because of servers in a network design, or a failure condition based on servers not communicating and synchronizing their data to each other. High-availability clusters usually use a heartbeat private network connection which is used to monitor the health and status of each node in the cluster. For example the split-brain syndrome may occur when all of the private links go down simultaneously, but the cluster nodes are still running, each one believing they are the only one running.

The Challenge of Every Storage Cluster Every storage vendor on the market needs a quorum, witness or tie-breaker to run automatic switchover in case of site-failure! Expensive infrastructure investments in a 3rd data center location and highly redundant interconnects form the primary data centers to the quorum site are required! No infrastructure investment is needed, which offers the lowest possible TCO for automatic switchover. ClusterLion is only available for NetApp MetroCluster.

7 Mode or cDOT 2-Pack MetroCluster stretched HA system01 failed ! takeover! cf giveback Srvc (a) Srvc (b) A/A Controller Failure Scenario 1st Controller fails Identity „moves“ to 2nd controller I/O passes through 2nd controller After repairing1st controller, issue „cf giveback“ Identity „moves“ back to 1st controller Normal operations continue

SiteA down or site-connection broken? 7 Mode or cDOT 2-Pack MetroCluster stretched HA Srvc (a) Srvc (b) SiteA down or site-connection broken? cf takeover -d cf giveback MC Site Failure Scenario Entire Site A fails 2nd controller checks heartbeat, disk-connections and IP connection while still serving its data Human or process on 3rd Site identifies site-failure Issue „cf takeover –d“ Identity „moves“ to second controller

cDOT 4-Pack MetroCluster / local HA stretched HA local HA local HA MC Fabric Srvc(a) Srvc(b) NO AUTOMATIC SWITCHOVER BETWEEN DATA CENTERS

ONTAP 8.3 MetroCluster DR Guide Source: http://mysupport.netapp.com/documentation/docweb/index.html?productID=62093&language=en-US

ClusterLion – The Solution

Q ClusterLion A2 A1 B2 B1 SRV1 “Switchback” SRV2 Customer Support during Giveback Switchover Ethernet / SAN 2x RS232 2x Ethernet Srvc(b) 2x RS232 2x Ethernet Srvc(a) Srvc(b) MC Fabric A2 A1 B2 B1 100m Grid UPS 100m Grid UPS Telco B Telco A Q Remote Quorum Use Case: Power Outage Monitoring: Power Supply Storage Controller Partner Status Heart-Beat 1. Reporting: A2: Active Controller Heartbeat A1: Lost Cluster Partner, NVRAM etc. B2: No Controller Heartbeat B1: Controller Error and Power Alarm 2. Action: B2: Power Off B1: Power Off A2: Active Controller Heartbeat A1: Force Takeover Q: Open Helpdesk Ticket Open Ticket Partner Helpdesk

MetroCluster Switchover Available solutions for NetApp MetroCluster switchover: TieBreaker Manual Switchover ClusterLion Support for 7-Mode and cDOT MC config. ✔ Continues operation even during site-failure X Only two data centers are needed to run switchover Highly secure against Split-Brain and data loss Independet remote view on MetroCluster status Very easy to install and operate

ClusterLion Technology

ClusterLion Technology ClusterLion without Front Cover „Hot Swap“ Battery

ClusterLion Technology 4x Power Input Reset Button 4x Power Output 2x Serial Consol Port 2x Cooling Fans 6x Ethernet Connectivity 2x 24V Output for UMTS Gateways

ClusterLion Premium Support Premium Support Contract: 24x7 Phone Support Proactive notification of the Customer Automatic support ticket at Storage Vendor Support during cluster giveback European Maintenance Partner: Econocom Osiatis

Customer Benefits ClusterLion increases the availability of your NetApp MetroCluster. Even in the event of a total failure at one location, cluster services are properly delivered. All applications remain available. ClusterLion works with only two locations. This reduces costs and complexity. A third site (Quorum) will be provided by ProLion free of charge. ClusterLion prevents data corruption in case of Split Brain syndrome. ClusterLion permanantly ensures a consistent state in the storage cluster. ClusterLion can be retrofitted at any existing storage cluster.

The question is not if you can afford ClusterLion, but... ...if you can afford to operate without ClusterLion. Thank you!