Version 1.1 of the DataDirect Networks Infinite Memory Engine (DDN IME) nonvolatile memory specific-primarily based flash cache and I/O processing device aid the present-day Intel Xeon Phi x86 processors — code-named Knights Landing — and forty Gigabit Ethernet and 100 GbE networking. IME already supported one hundred Gbps InfiniBand EDR and Intel’s Omni-Path Architecture.
DDN IME is sold as software-simplest or on equipment. DDN also improved the software to permit a cluster to nondisruptively deal with a node failure, redistribute journaled information to the remaining nodes, and raise metadata and flash performance. IME brought help for consumer-configurable erasure code alternatives, offering protection in opposition to the failure of 1 or three drives or nodes.
The DDN IME software has server and client additives and deploys in front of a document gadget or parallel record system. The IME purchaser intercepts I/O fragments and applies erasure coding, which offers the details to IME servers. The DDN IME servers manipulate the flash drive pool and internal metadata and arrange the I/O for premiere performance before synchronizing the facts with the back quit report storage.
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“We’re working on availability at scale with erasure coding everywhere across the product line,” Shepard said. “Erasure coding is the facts safety of desire on [DDN] IME and also on our [WOS] object storage. And now, we’re also adding it to our continual record gadget tier on our SFA product line.”
Shepard stated clustered RAID would permit the software-based sharing of parity facts bits across a large pool of drives compared to a small high-availability collection in traditional RAID. DDN will start with a guide for the equal of RAID 1, 5, and 6, and it will launch more fantastic alternatives later, she stated.
“You could have a far decrease percentage of your standard potential committed to parity and still have a completely excessive degree of data protection,” Shepard stated of clustered RAID. “Plus, due to the fact parity may be disbursed extensively amongst a miles larger range of drives than in a conventional RAID [configuration], you could rebuild lots smaller bits from every drive, making the rebuilds lots quicker.”
Shepard stated DDN uses a way referred to as vertical rotation with its clustered RAID to mitigate latency. She said the system offsets writes from one drive to the following, so the force’s onboard cache isn’t always beaten.
“The adaptive resilience capabilities without a doubt help them give up consumer tailor how performant they want their garage to be versus how a great deal redundancy they want constructed in,” said Addison Snell, CEO of Intersect360 Research in Sunnyvale, Calif. “That’s only a slider bar that human beings can music on their personal.”
DDN additionally spotlighted its EXAScaler Enterprise Lustre Distribution and its work in the open supply Lustre community inside the wake of Intel’s April statement that it might discontinue its commercially supported Lustre distribution.
“They’re surely supporting [to] provide a touchdown area for the stewardship of excessive-performance Lustre for business enterprise in a supported way,” Snell said. He stated Intel provided the greatest commercially supported Lustre option, and DDN would offer “a safe haven” for excessive-performance computing users who “need an actual corporation it is backing and supplying guide and contributing lower back to the open supply network.”