- September 12, 2021
- Posted by: admin
- Category: Storage

QNAP All-Flash Solution
QNAP’s All-Flash Storage Solutions feature ZFS data reduction and SSD optimization technologies to maximize SSD performance and lifespan – perfect for keeping your business agile and efficient! Up to 472,000 IOPS random read. Optimized for mission-critical storage, data centers, and multi-cloud workloads.
The U.2 NVMe all-flash array TS-h2490FU has 24 U.2 NVMe Gen 3 x4 SSD bays. When transferring up to 128 GB data, it performs up to 472K IOPS in 4K random read and up to 14 GB/s for 512K sequential read – close to the complete data transfer of a Blu-ray Disc within one second.
The U.2 NVMe all-flash array TS-h2490FU has 24 U.2 NVMe Gen 3 x4 SSD bays. When transferring up to 128 GB data, it performs up to 472K IOPS in 4K random read and up to 14 GB/s for 512K sequential read – close to the complete data transfer of a Blu-ray Disc within one second.
Optimized SSD performance and lifespan to maximize your all-flash investment
Write Coalescing
- Engineered for flash optimization by transforming all random writes to sequential writes with reduced I/O.
Inline Data Compression and Compaction
- Shrink file sizes to reduce storage I/O workloads for improved performance.
QoS
- Gain optimal resource allocation for LUNs/shared folders at different service levels.
TRIM
- Cleans deleted data blocks during system idle time to maintain SSD write performance.
Pool Over-provisioning
- Avoids performance degradation when ZFS storage capacity is nearly full.
iSER
- Boosts the data transfer of QNAP NAS as VMware ESXi™ storage and reduces the CPU load of the ESXi server.
SSD Extra Over-provisioning
- Combats write amplification and extend SSD lifespan.
Inline Data Deduplication and Compression
- Optimizes SSD storage utilization and reduces data writes for an extended lifespan.
Greater performance. Utmost speed.
Write Coalescing drives random write performance for all-flash arrays
Write amplification is an undesirable effect of SSDs, bringing challenges to flash memory performance and endurance. QNAP’s exclusive Write Coalescing algorithm is engineered for flash optimization by transforming all random writes to sequential writes along with reduced I/O. It not only effectively increases random write performance for all-flash environments but can also improve SSD lifespans.
Greater performance. Utmost speed.
Write Coalescing drives random write performance for all-flash arrays
Write amplification is an undesirable effect of SSDs, bringing challenges to flash memory performance and endurance. QNAP’s exclusive Write Coalescing algorithm is engineered for flash optimization by transforming all random writes to sequential writes along with reduced I/O. It not only effectively increases random write performance for all-flash environments but can also improve SSD lifespans.

Inline data compression and compaction improve write speeds
Inline data compression shrinks file sizes to lower storage I/O workloads for improved performance. It also helps optimize storage utilization of SSD over-provisioning.

QoS ensures consistent primary storage performance
When large datasets are accessed from multiple applications at specific times, the allocation of resources is key to business storage management. Quality of Service (QoS) helps optimize resources allocation based on I/O (including IOPS and throughout) and bandwidth (including maximum/minimum bandwidth, burst, and burst time) for LUNs/shared folders at different service levels. QoS prioritizes the performance of business-critical applications that run concurrently with non-critical applications as well as reducing “noisy neighbor” problems.
TRIM improves the performance of SSD data writes
While almost all SSDs have shown consistent write performance degradation, TRIM helps overcome write performance drops. SSD TRIM allows the system to inform SSDs to delete unneeded data blocks. Deletion tasks are processed during system idle times, meaning it does not have to wait for when new data is written to the block.

Pool over-provisioning ensures write performance
With Pool Over-provisioning, space can be flexibly reserved in a storage pool to allow new data to be written into a complete block even if the pool is almost full, thus improving the performance of fragmented pools. For write-intensive workloads and performance-demanding applications (such as SQL transaction logs, backups, surveillance, and medical videos) you can set higher pool over-provisioning to attain higher write performance.

Optimized performance for VMware virtualization with iSER
QNAP NAS supports the iSCSI Extensions for RDMA (iSER) protocol. When used with an iSER-compatible 10GbE/40GbE network card, iSER boosts the data transfer performance of QNAP NAS as VMware® ESXi storage and reduces the CPU load of the ESXi server, providing an essential tool to optimize demanding virtualization applications. All-flash storage featuring iSER can obtain significant performance increases in VMware® virtualization environments.




High performance with reliable data protection
Besides unleashing the full performance potential of all-flash storage arrays, QNAP’s all-flash solutions feature reliable ZFS-based data protection and disaster recovery for today’s always-on world.
Data integrity
Self-healing uses end-to-end checksums to detect and correct silent data corruption caused by hardware defects. Write Once, Read Many Times (WORM) is also supported to ensure that data, once written, cannot be modified.
Near-unlimited snapshots
Up to 65,535 snapshots for iSCSI LUN and shared folders are supported to attain well-rounded snapshot versioning (if 1 snapshot is created every hour, 24 snapshots per day, then up to 7 years of snapshots can be created without needing to delete any!). Copy-on-write technology makes snapshot creation almost instantaneous without affecting ongoing data writing.
Real-time SnapSync
Block-based real-time SnapSync ensures that the primary NAS and the secondary NAS always keep the same data, providing the strongest support for nonstop business operations via real-time disaster recovery from the secondary NAS.