Tuesday, May 22nd 2018

QNAP Introduces New QM2 PCIe Cards to Enhance NAS Performance

QNAP Systems, Inc. has extended the lineup of QM2 PCIe expansion cards with new models that support up to four M.2 SSDs slots on a single card. QM2 cards support either M.2 SATA SSDs or M.2 PCIe NVMe SSDs to enable SSD caching for boosted IOPS performance or to form an auto-tiering volume for optimal storage performance. QM2 cards also allow QNAP NAS users to maximize both storage capacity and performance by installing M.2 SSDs without occupying any 3.5-inch drive bays.

"When faced with a performance bottleneck, the random read/write speed of the hard drives in a NAS is one of the decisive performance factors," said Joan Hsieh, Product Manager of QNAP, continuing "QM2 cards can greatly boost the performance of QNAP NAS with PCIe slots, while the flexible configuration of SSD caching and I/O-aware Qtier all helps multiply NAS performance."
The innovative, well-designed QM2 cards now support additional QNAP NAS; the M.2 SSD thermal sensors allow real-time temperature monitoring, and a quiet cooling module (heatsink and smart fan) minimizes overheating risks and sustains constant high performance. QM2 models that support four M.2 SSDs allow for SSD caching with higher storage capacity to optimize IOPS-demanding applications, as well as supporting RAID 5/RAID 6/RAID 10 to provide redundancy against potential hardware failure.
QM2 cards include advanced models featuring additional 10GbE 10GBASE-T connectivity (backwards compatible with 5GbE/2.5GbE/1GbE/100MbE). Combining M.2 SSD and 10GbE connectivity into one solution, the QM2 helps improve overall NAS performance while providing an affordable upgrade path for adopting 10GbE networks.
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6 Comments on QNAP Introduces New QM2 PCIe Cards to Enhance NAS Performance

#2
TheLostSwede
That's a serious interface bottleneck on most of those cars for NVMe drives.
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#3
stanleyipkiss
Why isn't the quad NVME card on PCI Express 3.0 16x? Each M.2 drive uses a 4x connection, right? So a 8x connection does not equal maximum performance for NVME.
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#4
TheLostSwede
stanleyipkiss, post: 3844970, member: 176977"
Why isn't the quad NVME card on PCI Express 3.0 16x? Each M.2 drive uses a 4x connection, right? So a 8x connection does not equal maximum performance for NVME.
Because QNAP has either x4 or x8 PCIe slots in their NAS appliances.
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#5
Octavean
stanleyipkiss, post: 3844970, member: 176977"
Why isn't the quad NVME card on PCI Express 3.0 16x? Each M.2 drive uses a 4x connection, right? So a 8x connection does not equal maximum performance for NVME.
It's also worth noting that in most cases NAS units are used over a network exclusively rather then directly like a laptop or desktop PC. Therefore, typically the network connection will function as a limiting factor with respect to SSD performance.

Having said that, QNAP does allow for direct control over most NAS units that would use such a PCIe card since such models typically have at least one HDMI port. But again most people aren't going to use a NAS that way and if they want the best performance they would also want to setup a RAMdrive anyway.
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#6
AnarchoPrimitiv
TheLostSwede, post: 3844965, member: 3382"
That's a serious interface bottleneck on most of those cars for NVMe drives.
All of qnaps previous cards used SATA M.2 SSDs to be used in QNAP's caching and tiering software, but even with a bottleneck on the PCIe lanes, the main limiting factor is going to be network speed as I highly doubt anyone buying a desktop NAS (desktop = non-server rack) is going to put a 40Gbit QSFP+ networking card in one of these units or attempt to aggregate 4x 10GBase-T links
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