In our 4K write latency test, the numbers were in line with what we saw on the throughput side. The eight-drive configuration offered the fastest transaction speed with an average response of 1.58ms, with the five-drive RAID5 coming in with 2.32ms, the two-drive RAID1 coming in with 2.58ms and the single drive measuring 8.88ms. The Western Digital Red 3TB drive uses a primarily single-sided PCB, with all components facing the body of the drive for thermal dissipation. The board is held firmly to the drive with four Torx screws with a vibration isolation/thermal pad mounted between the circuit board and metal body. The easiest way to detect whether it is a SMR drive is the cache size. Old drives (WDx0EFRX) had 64MB cache whereas new

NASware™ grows to 3.0 - Built off of our determination to deliver the best NAS experience, NASware 3.0 extends our promise by further optimizing WD Red for the NAS environment with added support for 6 to 8 NAS bays. WD Red now supports small NAS systems from 1 to 8 bays thanks to NASware 3.0, which further improves drive compatibility and reliability. At 48 TB of total capacity in an 8 bay system, WD Red expands your NAS experience. False. Various sized drives come with various size caches. You can’t instantly detect SMR/CMR by cache size. There?셲 a leading edge WD Red drive for every compatible NAS system to help fulfill your data storage needs.Enhanced reliability - Since your NAS system is always on, a highly reliable drive is essential. With a 35% MTBF improvement over standard drives, the WD Red drive with NASware 3.0 is designed for the 24x7 environment. Active Balance™ Plus - Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. (EFRX models only)

If you connect by example 10 SSD, you will be near to load 6G/s * 10 = 60Gb/s = 7.5 GB/s (very theorically, but maybe reach the PCH bus limit ?)We also measured the power consumption of each Synology model filled with Western Digital Red hard drives through our Eaton Advanced Monitored ePDU, which monitors devices at the outlet level. The eight-bay Synology DS1812+ used 59 watts during active write activity and 55 watts at idle, while the five-bay DS1512+ used 49 watts under load and 44 watts at idle, while the small two-bay DS712+ needed just 31 watts under load and 24 watts at idle.

The first is our database profile, with a 67% read and 33% write workload mix primarily centered on 8K transfer sizes. IntelliPower, Advanced Format technology, NAS compatible, NASware technology, 3D Active Balance Plus, S.M.A.R.T. With the increase in adoption of home and small business NAS units, WD’s decision to make a product exclusively for that growing market makes some sense. According to a recent IDC personal storage report, the personal and small business 1-12 bay NAS market is the fastest growing segment of the hard drive storage market. Additionally there’s a growing number of NAS systems shipped without drives pre-installed, which raises thequestion about which drive is best for NAS usage. Western Digital wantsRed to be the clear answer for small NAS units – no thought necessary, just buy your NAS enclosure and fill it with WD Reds. Lower operating temperatures - Innovative technology reduces power consumption and lowers the operating temperature, resulting in a more reliable and affordable solution for always on NAS environments. The Western Digital Red offered the best sequential transfer speeds out of the group of low-power hard drives. It measured 143MB/s read and 142MB/s write, well above the older 3TB Caviar Green which only managed 119MB/s read and 119MB/s write.But the PCH link to CPU are done with a DMI 2.0 that if i understand correctly use like a PCIe x4 2.0 bus (or something near) With the new Red hard drives designed for 24/7 home and SMB NAS usage, Western Digital still found ways to improve the power consumption of their new low-power hard drive over previous generation low-power hard drives. Across the board, the new Western Digital Red offered the lowest activity and idle power values. Startup power was slightly higher than the older Caviar Green models, but not by much. The right choice - WD Red is designed specifically for home and small office NAS systems and PCs with RAID. Designed specifcally for home and small office NAS systems - WD Red is the only hard drive for 1-8 bay systems

We tested our batch of eight WD Red hard drives in varying configurations ranging from single drive to 2, 5 and 8-bay Synology NAS deployments.In terms of performance, the WD Red did very well not only as a single drive, but increased proportionally as we scaled up the testing in the Synology DiskStations. With link-aggregation we measured read speeds in excess of 200MB/s (8-bay) and write speeds coming in just below 170MB/s (5-bay). Random I/O performance with each model in RAID was good, showing a nice linear increase in speed with each larger RAID array. In both active and idle settings, we found power consumption to be very good, with even the eight-bay DS1812+ filled with Reds measuring under 60 watts under load and 55 watts at idle.From the front the 3TB Red has a standard SATA data and power connection with 8 service pins generally reserved for debugging modes and changing drive settings for advanced users. If you have existing RAID with old 2TB/3TB/4TB/6TB EFRX CMR drives and you need a replacement drive or you want to expand your RAID with an extra drive make sure you get a right drive. You may want to get a spare drive before these old EFRX drive are not available any more. PS: Even with a 12 SSD pools it's hard to handle more than 2GB/s READ/WRITE throughtput within a ZFS Pool, so it can be enough for your pool. The WD Red comes in 1TB, 2TB and 3TB capacities with 64MB cache, SATA 6Gb/s interface and Intellipower low power spindle. For data migration Western Digital has included a copy of Acronis True Image software. WD offers a three year warranty, dedicated support line and QR code on the drive for mobile access to product documentation and support. The WD Red family just got bigger - Our formula of success has led to the growth of WD Red into the highest capacities possible. Available up to 6 TB, WD offers an even broader, more comprehensive portfolio of NAS solutions for our customers with WD Red and WD Red Pro spanning a total of 1 to 16 bays.