At 9:17 AM -0700 3/25/2009, Al Poulin wrote: >If I may summarize the discussion about bad sectors. > >Bad sectors (blocks) get mapped out on the fly during normal >read/write operations. > >Bad sectors (blocks) get mapped out within a volume/partition when >you zero the volume/partition in Disk Utility or some other tool. > >Bad sectors (blocks) get mapped out on the hard drive when you zero >the entire hard drive in Disk Utility or some other tool.
Correct. >Secure Erase (also Secure Empty Trash) zeros whatever sectors had >been previously written to and therefore maps out any bad sectors >previously written to, and only those. The secure erase features use a varying bit pattern, not all zeros. Same effect tho, wrt triggering bad block mapping. >Zeroing does not equal mapping out. Mapping out bad blocks is handled by the controller. Zeroing is a higher level function, done by the app (Disk Utility, etc). - 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 -~----------~----~----~----~------~----~------~--~---
