Western Digital Announces SanDisk Skyhawk Enterprise NVMe SSDsby Billy Tallis on February 7, 2017 10:00 PM EST
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- Western Digital
- Enterprise SSDs
Today Western Digital announced the first enterprise NVMe SSDs under their SanDisk brand. The new SanDisk Skyhawk series are 2.5" U.2 SSDs intended for datacenter use. While Western Digital's HGST division already has NVMe SSDs like the Ultrastar SN200 series and their consumer-oriented WD brand recently added the WD Black M.2 NVMe SSD, SanDisk's previous PCIe SSDs have been based on their proprietary Fusion-IO architecture.
The SanDisk Skyhawk series includes 2TB and 4TB class drives. The standard Skyhawk models have usable capacities of 1920GB and 3840GB, while the Skyhawk Ultra models reserve more spare area and offer usable capacities of 1600GB and 3200GB. All four SKUs are based on a common platform with an unspecified PCIe 3.0 NVMe 1.2 controller. Performance and power consumption ratings are substantially lower than the HGST Ultrastar SN200 series, which use Microsemi's Flashtec controllers and draw up to 25 W compared to just 10.5 W average and 12 W maximum for the Skyhawk. The SanDisk Skyhawk SSDs do not support the U.2 dual-port mode that top of the line enterprise SSDs like the HGST Ultrastar SN200 and Intel SSD DC D3600 and D3700 are capable of using, but otherwise the SanDisk Skyhawk has the usual features expected of a datacenter SSD.
|Capacities||1,920 GB||3,840 GB||1,600 GB||3,200 GB|
|Form Factor||2.5"/15mm U.2|
|Interface||PCIe 3.0 x4 (NVMe 1.2)|
|Sequential Read (128 kB QD128)||up to 1500 MB/s||up to 1700 MB/s|
|Sequential Write (128 kB QD128)||up to 1170 MB/s||up to 1200 MB/s|
|Random Read (4 kB QD128) IOPS||up to 250k IOPS||up to 250k IOPS|
|Random Write (4 kB QD128) IOPS||up to 47k IOPS||up to 83k IOPS|
|Mixed Random Read/Write
( 70%R/30%W, 4kB QD128)
|up to 99k IOPS||up to 150k IOPS|
|Average Random Read Latency (4kB QD32)||128 µs||127 µs||125 µs||126 µs|
|Average Random Write Latency (4kB QD32)||718 µs||1331 µs||351 µs||693 µs|
|Endurance||0.6 DWPD||0.5 DWPD||1.7 DWPD||1.2 DWPD|
|Power Loss Protection||Full in-flight data protection|
|MTBF||2 million hours|
Pricing for the SanDisk Skyhawk SSDs has not been announced. The drives are currently sampling to select OEMs and will be generally available in Q2.
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Michael Bay - Wednesday, February 8, 2017 - linkBut why no ecryption? Do they still treat it as an enterprise model diversifier?
CaedenV - Wednesday, February 8, 2017 - linkI imagine these drives are for RAID implementation, there is little to no point to encrypting a RAID drive as there is no real data on any single drive. The encryption would be at the RAID controller level.
Penti - Wednesday, February 8, 2017 - linkSo where is raid controllers for PCIe/NVMe? Are any actually sold? Of course you can always do software raid and run an encrypted volume on top of that.
ddriver - Wednesday, February 8, 2017 - linkSoftware raid makes more sense here IMO. Hardware raid is plain out silly IMO, I always use only HBA cards, no raid thanks.
rems - Wednesday, February 8, 2017 - linkoooh 1.7DWPD*5years*365.25 = 4850.97TB disk life?
rems - Wednesday, February 8, 2017 - linkThat was for the 1.6TB the 3.2TB is put at 6848.44TWTB
MrSpadge - Wednesday, February 8, 2017 - linkA few PB write endurance is normal for a big MLC enterprise drive.
rems - Thursday, February 9, 2017 - linkDoes intel not produce such drives or is it me not finding this info there: https://ark.intel.com/#@SolidStateDrives
MrSpadge - Thursday, February 9, 2017 - linkIt's a PITA to find anything on Intels website unless you already know what you're looking for. And that should be e.g. the Intel DC P3700 or DC P3600:
36.5 PB TBW at 2 TB capacity, using HET MLC NAND.
rems - Friday, February 10, 2017 - linkoh they're actually giving in on their website just had to know the model!
a crazy 62PBW woah 17DW/D