Gigabit network speed faster than HDD?

Question

Hard disks

If I understand correctly, the speed of a gigabit network is 128 megabytes per second, and the linear recording speed of a typical modern HDD is 100-150 megabytes per second.
Does this mean that more than two disks in RAID0 will not notice a speed increase when accessed over the network? Or does it allow IOPS growth?

Answer 1

You understand correctly, but you overestimate modern hard drives, 60-80 megabytes - if you take some kind of 1TB WD,
Yes - the increase in IOPS will be small, the 10th raid of 4 conventional sata 1TB screws loses in IOPS even when reading the cheapest 120 gigabyte SSD, on record and even more so.
Therefore, if you want speed, take ssd, if you want space - take hdd.

Answer 2

It all depends on the conditions of use, if you use a lot of files - IOPS decides, if there are few files, one / two disks will suffice.
Well, of course, on a 1Gb / s link above 125 Mb / s it will not work, either you need to aggregate 2/3/4 1 Gb links, or you need 10 Gb / s

Answer 3

above 125 mb / s will not work

It's you, Wexter , that's a hell of a lot of money. If we take into account all the service information, then the payload transfer rate will be a little more than 90 Mb / s, or even about 100. And if we take into account the inevitable packet loss and duplicate TCP packets, then the speed will be even less.
If you do not write bare ethernet packets to disk, then the gigabit network will not run into disk performance. My laptop HD gives out 107 Mb / s with sequential reading.

Answer 4

gigabit network speed is now less than the speed of one hdd in one stream