Western Digital has announced a new family of SSD companies targeting mixed workloads. The new disk uses self-developed components and comes in the form of EDSFF E1.L, U.2, and M.2-22110 factors offering capacities of up to 30.72 TB.
Based on drivers developed by Western Digital in-house as well as BICS4 3D TLC NAND 96-layer, the Ultrastar DC SN640 SSD is designed for business critical workload applications that demand critical performance, including SQL Server, MySQL, VMware vSAN, Microsoft Azure Stack HCI Solutions, virtual desktops, and others. When it comes to feature sets, the disk supports power loss protection, AES-256 data encryption, instant secure erase, signed firmware downloads, and other technologies.
Depending on the destination application, Western Digital will offer Ultrastar DC SN640 in three form factors. For those who need maximum performance and capacity, the manufacturer will offer SSDs in the form of an EDSFF E1.L factor that will offer capacities up to 30.72TB as well as up to 720K IOPS random read. For blade servers running virtual desktops and similar software, the manufacturer will offer U.2 SSDs that display a capacity of up to 768TB. For limited space and OCP environments, the Ultrastar DC SN640 drive will be available in M.2-22110 form factor and capacity up to 384 TB. Considering the workload, the new SSD offers adjustable durability 0.8 or 2 DWPD for five years.
When it comes to performance, Ultrastar DC SN640 6.4TB U.2 SSD rated up to 3.2GB / s sequential read speed, up to 2.14GB / s sequential write speed, up to IOPS random reads up to 480K and up to 120 thousand IOPS random writes.
|Western Digital Ultrastar DC SN640 SSD|
|Capacity||0.8 DWPD||800 GB|
|2 DWPD||960 GB|
|the interface||PCIe 3.0 x4 (NVMe)|
|NAND||96 layers BICS4 3D TLC NAND|
|Read sequentially||up to 3200 MB / s|
|Write sequentially||up to 2140 MB / s|
|Random Read (4KB) IOPS||up to 480K IOPS|
|Random Write (4KB) IOPS||up to 120K IOPS|
|Mixed read / random write|
(IOPS max 70% R / 30% W, 4KB)
|up to 240K IOPS|
|Power||Active||12 W||825 W||20 W|
|Power loss protection||yes|
|MTBF||2 million hours|
|To guarantee||Five years|
|Note:||Performance numbers are based on SSD 6.4TB U.2|
Western Digital Ultrastar DC SN640 SSD samples are now available for corporate customers and will be commercially delivered later.
Source: Western Digital