Curtis Chan is President and CEO/Founder and Managing Partner of two high technology brand marketing and business services companies, CHAN & ASSOCIATES and COGNITIVE IMPACT, whose clients range from the Global Fortune 500 to venture capital funded startups.
His agencies’ services have helped garner early stage and growth companies significant brand exposure, resulting in either acquisition or IPO, with a total valuation of over $1.5 Billion.
Mr. Chan is a serial entrepreneur, philanthropist and angel investor. His expansive background spans over three decades in ever increasing executive roles in operations, business development, engineering and sales/marketing in the information technology, media & entertainment, storage and networking, and other related high technology industries. He is an active mentor and senior advisor to many established and start-up companies, a market/technology analyst, and has over two decades of experience in brand development, management consulting / turnarounds, creative advertising and public relations.
A graduate of California Polytechnic State University, San Luis Obispo (SLO), Mr. Chan is an Entrepreneur in Residence and Advisor for the Small Business Institute at California State University Fullerton; Advisor to the College of Engineering's Global Waste Research Institute, Cal Poly, San Luis Obispo; Board of Director for the Fullerton College Foundation; past Board President for the Healing Hearts Association; and is a regularly featured speaker at many MBA and Doctorate level lectures around the country. He has presented and published over 30 papers worldwide, is a book co-author, an editorial board member of SMPTE, past Senior Editor for Computer Technology Review, and is a regularly featured Contributing Editor for many US and international trade publications for over 30 years.
the cluster, which reduces resource overhead on the ESXI hosts, improving performance for storage intensive operations.
SAN Cluster Components
To achieve high availability, the JMR SHARE SAN Cluster components include:
• Cluster node: An individual member server of the cluster.
• Active node: The server providing storage to the clients; it replicates data to the passive node and assures the data is consistent on both nodes.
• Passive node: Contains the same data as the active node and stays in standby mode as long as the other node is active. In the event of an active node failure, it will automatically take over and continue to provide storage to the clients.
• Cluster drive: This is generally a RAID set of drives in each server, which are mirrored in real time. On each drive, Fibre Channel targets are installed. Up to 50 cluster drives are supported.
• Corporate connection: The FC connection used by the clients for accessing Fibre Channel cluster targets. More than one FC port can be used for this connection.
• Replication connection: Internal Fibre Channel connection used for data replication between the nodes; you can also use more than one FC port for this connection.
• MPIO/ALUA (Asymmetric Logical Unit Access): Supports and delivers high availability by establishing multiple sessions from a client to each node of the SAN Cluster through Fibre Channel. If a device in the path fails, I/O requests will be automatically redirected to an alternate path for continued application availability. In the SHARE SAN Cluster system, the active node will be automatically recognized as active and the passive node will be automatically recognized as a standby node to the client.
The Cluster Events and Hardware Considerations for the SAN Cluster are the same as described earlier for the HA Cluster, except for the SAN Cluster, we provide dual-port FC HBAs at 8Gb or 16Gb/s and use SAN Cluster OS instead of HA Cluster OS. In all cases, mirrored system disks are provided and all the enterprise features of the systems are retained.
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