At 2:34 PM -0500 1/5/2009, Charles Davis wrote: >On Jan 5, 2009, at 1:48 PM, MIKO .. wrote: > > On Jan 5, 2009, at 9:28 AM, Charles Davis wrote: > > Well- and for the obvious reason that you aren't always partitioning > > into pieces that divide perfectly among platters! > >But, you forget "Partitions" are YOUR thinking. The HD doesn't give a rip!!!
And to take this one step further, there's a process called "scatter gather". Various virtual and logical i/o requests are queued up, and the OS sorts them so as to send fewer / more efficient physical i/o commands to the drive (gather). When the response is received, the OS breaks up the buffer, handing each piece to the appropriate requester (scatter). This is also "re" done in the drive's controller, as it translates the logical block numbers to real cylinder/track/sectors. And everything is buffered here and there and everywhere... - Dan. -- - Psychoceramic Emeritus; South Jersey, USA, Earth --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
