Hi guys
Firstly please read my complaint of drive manufacturers laziness here:
https://ftr-ceu.blogspot.com/2018/08/ssd-and-drive-capacities-or-king-has-no.html
Q: What stops drive manufacturers putting multi layered PCB multi slot cards of M.2 (M Key) drives?
A: nothing..
The PCIE specification can default to the appropriate maximum speed, now while I do not recommend putting one of these hypothetical drives into a PCIE-1 x1.. it is much more common to have higher speeds.. even at a x16 PCIE-1 that's 250MB/s for 8 drives..but let's take a typical scenario;
Scenario 1
PCI-E 3/four slots of x16
15.8 GB/s
each PCB would have four 1TB drives in Raid JBOD (spanned)
Four PCBs would mean 750MB/s - upto 1GB/s per PCB (still being double the SSD speed)
total: 16 Terabyte
RAID 0 Speed: upto 12GB/s
Suggested price point: £100/$130
each PCB shows up as a separate disk, which you can choose to software JBOD or RAID 0, using RAID 0 theoretically (if the RAID controller on the PCB is any good), usual max speeds are 3GB/s x four would be upto 12GB/s in RAID 0 for the entire drive.
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Scenario 2
PCI-E 4/four slots of x16
31.5GB/s
each PCB would have four 1TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 7.8GB/s per PCB.
total: 16 Terabyte
RAID 0 Speed: upto 23.6GB/s
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Scenario 3
PCI-E 5/four slots of x16
63GB/s
each PCB would have four 1TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 15.75GB/s per PCB.
total: 16 Terabyte
RAID 0 Speed: upto 47.25GB/s
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Scenario 4
PCI-E 4/four slots of x16
31.5GB/s
each PCB would have eight 1TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 32 Terabyte
PCI-E 4/four slots of x16
31.5GB/s
each PCB would have eight 1TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 32 Terabyte
RAID 0 Speed: upto 23.6GB/s
Suggested price point: £230/$280
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Scenario 5
PCI-E 5/four slots of x16
63GB/s
each PCB would have eight 1TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 7.8GB/s per PCB.
total: 32 Terabyte
PCI-E 5/four slots of x16
63GB/s
each PCB would have eight 1TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 7.8GB/s per PCB.
total: 32 Terabyte
RAID 0 Speed: upto 47.25GB/s
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Scenario 6
PCI-E 4/four slots of x16
31.5GB/s
each PCB would have eight 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 64 Terabyte
31.5GB/s
each PCB would have eight 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 64 Terabyte
RAID 0 Speed: upto 23.6GB/s
Suggested price point: £450/$500
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Scenario 7
PCI-E 5/four slots of x16
63GB/s
each PCB would have eight 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 7.8GB/s per PCB.
total: 64 Terabyte
PCI-E 5/four slots of x16
63GB/s
each PCB would have eight 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 7.8GB/s per PCB.
total: 64 Terabyte
RAID 0 Speed: upto 47.25GB/s
------
Scenario 8
PCI-E 4/four slots of x16
31.5GB/s
each PCB would have twelve 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 1.95GB/s per PCB.
total: 96 Terabyte
31.5GB/s
each PCB would have twelve 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 1.95GB/s per PCB.
total: 96 Terabyte
RAID 0 Speed: upto 7.8GB/s
Suggested price point: £750/$900
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Scenario 9
PCI-E 5/four slots of x16
63GB/s
each PCB would have twelve 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 96 Terabyte
PCI-E 5/four slots of x16
63GB/s
each PCB would have twelve 2TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 96 Terabyte
RAID 0 Speed: upto 15.6GB/s
------
Scenario 10 (industrial)
PCI-E 5/four slots of x16
63GB/s
each PCB would have twelve 4TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 192 Terabyte
PCI-E 5/four slots of x16
63GB/s
each PCB would have twelve 4TB drives in Raid JBOD (spanned)
Four PCBs would mean upto 3.9GB/s per PCB.
total: 192 Terabyte
RAID 0 Speed: upto 15.6GB/s
192 Terabyte : Suggested price point: £1500/$1800
192 Terabyte : Suggested price point: £1500/$1800
Inside the drive would be: a very slim riser with four slots, one for each Slave PCB, each would be x16 mechanically but through the onboard chip, each would be x4 electrically.
On the industrial drives, they have splitters to increase speeds:
A double sided PCIE Gold Connecter Master PCB, the splitter simply joins to the other side of the PCIE Connecter, then the end of splitter has multiple ends which fit into the various motherboard PCIE slots.
On the industrial drives, they have splitters to increase speeds:
A double sided PCIE Gold Connecter Master PCB, the splitter simply joins to the other side of the PCIE Connecter, then the end of splitter has multiple ends which fit into the various motherboard PCIE slots.
Price points grouped:
16 Terabyte : Suggested price point: £100/$130
32 Terabyte : Suggested price point: £230/$280
64 Terabyte : Suggested price point: £450/$500
96 Terabyte : Suggested price point: £750/$900
192 Terabyte : Suggested price point: £1500/$1800
::RANT> ::
OR Drive Manf.'s can sit there and let users drown in drive management problems, not doing their job in this industry. Failing all consumers.To drag out mechanical drives for profit.
Remember its regularly 50GB A GAME! 1TB is filled by 20 games!!!
FAIL FAIL FAIL.
It's the same chips that are on SSDs using the SATA bus.. SATA is dead, only good for Optical Drives for ripping old discs.. long live the King PCIE!!
It's the same chips that are on SSDs using the SATA bus.. SATA is dead, only good for Optical Drives for ripping old discs.. long live the King PCIE!!
:: <RANT::
Sorry, its not EVERY company, but it just burns me to think of certain drive manufacturers sitting back and letting the cash roll in.. to the frustration of their customers.
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