Log-structured file systems: There's one in every SSD

Posted Sep 28, 2009 15:31 UTC (Mon) by giraffedata (guest, #1954)
In reply to: Log-structured file systems: There's one in every SSD by dlang
Parent article: Log-structured file systems: There's one in every SSD

They described handling flash as if it was just ram with special write requirements.
That (at least to me) implied the need for a full memory bus (thus the lots of wires)

But the post described doing that with a PCI Express card. PCI-E is as serial as SATA.

by the way, parallel buses are inherently faster than serial buses, all else being equal.
if 1 wire lets you transmit data at speed H, N wires will let you transmit data at a speed of NxH.

It sounds like you consider any gathering of multiple wires to be a parallel bus. That's not how people normally use the word; for example, when you run a trunk of 8 Ethernet cables between two switches, that's not a parallel bus. A parallel bus is where the bits of a byte travel on separate wires at the same time, as opposed to one wire at different times. Skew is an inherent part of it.