By Alexander Frank, IBM Germany
Owner of a fast sports car and not living in Germany? Unless you have your own raceway, you will never harvest all of your cars power because of speed limits. Technically, the engine can do more, but other components like street speed limits prevent you to do so.
Similar to this, CPUs of modern servers are capable of high performance computing, but often held down by read/write speeds of storage devices. PCIe SSD adapters have improved this, but still have a write latency of 15 μs which is not quite fast enough to capture all of the processors computing power.
IBM’s new eXFlash DIMMs offer the latest technology for storage in your server systems. Offering a first in storage technology, DDR3 memory bus is used to connect either 200 GB or 400 GB storage modules to your system, providing lowest possible latency time to make use of your CPU’s processing power.
Here are 5 things to know about the new eXFlash DIMMs:
With a write latency of less than 5 μs, the eXFlash DIMMs have one of the best response times out of all possible storage options currently available. This is made possible by direct communication using DDR3 without any intermediate controllers needed.
IBM eXFlash DIMMs can be used in different ways, depending on the business need. Usage scenarios include IBM eXFlash DIMMs as either primary data storage or caching device. This can be leveraged by applications such as transactional databases, data warehouses and virtualized workloads.
The eXFlash DIMMs endure up to 10 drive writes per day over a period of 5 years. Furthermore they can be installed as a mirrored pair for data protection.
With near linear performance scalability, IBM eXFlash DIMMs can be adapted to fit greater needs of growing businesses which need extra storage. A total of up to 12.8 TB of memory-channel storage per server can be installed.
Productivity and ROI is increased while TOC is reduced due to the fact that the wait idle times of the processor are reduced. Using more of your CPU’s power with lower latency times also means more overall performance for applications.
For more information about eXFlash DIMMs, refer to the following publications:
Alexander Frank is a German corporate student, attending the IBM university program in Berlin, Germany. He has been with IBM Germany since 2012, and he worked as an intern for IBM in the United States at the IBM ITSO Center in Raleigh.