8 Way Random Write Format??? What's it's benefits compared to "Zeros"?

ModeMAC

macrumors newbie
Original poster
Feb 8, 2005
23
0
i'm formatting with Zeros as we speak :) ...

but i also wanted to know:
what does having the option on "8 Way Random Write Format" do?
what's the benefit of THIS?
i don't really get it...

thanx,
_chris
 

SilentPanda

Moderator emeritus
Oct 8, 2002
9,993
30
The Bamboo Forest
Pretend you wrote a secret pass code on a piece of paper using pencil. You erase it but you can still faintly see it there. So you write 0's over it. Can you still see some of the pass code? Possibly. Now what if you erase the 0's and write random things on top of it? Can you still see the passcode? Probably not.

It's an analogy and not "how it works" but... that should make sense to most everybody.

But unless you're super paranoid... 0's should be fine. Heck a format should be fine. *Most* people aren't out to get you.
 

Bear

macrumors G3
Jul 23, 2002
8,089
4
Sol III - Terra
If you're keeping the system, zeroing the drive is fine. If you're getting rid of the system (or disk) and don't trust where it's going, the 8 way random write will pretty much make the data on the disk unrecoverable. (Although data recovery is getting better all the time.)

If you want to know more about the 8 way, search the net on "data security erase".
 

ModeMAC

macrumors newbie
Original poster
Feb 8, 2005
23
0
cool...thanx guys....

but one more question...

when you just buy it (the powerbook i got), how is it formatted outta the box?
like...the way it already comes...how is it formatted?

Zeros?

_chris
 

Daveway

macrumors 68040
Jul 10, 2004
3,372
0
New Orleans / Lafayette, La
Notice how Apple tells you it takes longer using the additional erase options. I did the 8 way thingy last week on a 4gig drive and it took over 3 hours! If I do a regular erase, its done in under 2 minutes.
 

Lacero

macrumors 604
Jan 20, 2005
6,639
2
8-Way Random Write is government-level security for erasing disks that can not be recovered. I doubt any of us has data that needs this level of erasure protection, unless of course you are self-professed religious person, on the edge of death, and need to erase your large stash of donkey porn videos.
 

ModeMAC

macrumors newbie
Original poster
Feb 8, 2005
23
0
o no no...nothing at all like that...

i just want my powerbook to be how it was the way they last touched it...ya know?

so, yeah...
in what method is it formatted when u buy it?

anyone know?

_chris
 

dejo

Moderator
Staff member
Sep 2, 2004
15,981
450
The Centennial State
ModeMAC said:
cool...thanx guys....

but one more question...

when you just buy it (the powerbook i got), how is it formatted outta the box?
like...the way it already comes...how is it formatted?

Zeros?

_chris
No. Not zeroes. It is formatted for Mac and contains an installed OS, etc. It is not blank.
 

dejo

Moderator
Staff member
Sep 2, 2004
15,981
450
The Centennial State
Can still recover from a zeroed drive?

I thought if you zeroed a drive, it puts a zero into EVERY SINGLE bit on the drive and therefore makes it impossible to recover any previous data. I didn't think there was any such thing as a "ghost" image when talking about magnetic media.
 

ModeMAC

macrumors newbie
Original poster
Feb 8, 2005
23
0
cool...
so formatting to mac is a completely different thing?

how would i do THAT?

thanx a lot,
_chris
 

BornAgainMac

macrumors 603
Feb 4, 2004
6,404
3,312
Florida Resident
ModeMAC said:
cool...
so formatting to mac is a completely different thing?

how would i do THAT?

thanx a lot,
_chris
It is called Erase under the Disk Utility in the Utilities folder. Options provided the additional options you mentioned to make the formatting more complete. Unchecking the options and using Erase just cleans out directory information without actually clearing out data. It is super fast no matter how big your hard drive is. Probably the most common way to format a drive.
 

dejo

Moderator
Staff member
Sep 2, 2004
15,981
450
The Centennial State
ModeMAC said:
cool...
so formatting to mac is a completely different thing?

how would i do THAT?

thanx a lot,
_chris
Yeah, most current Macs use HFS for formatting (vs. the FAT variations of Windows). And Macs can read from devices formatted with FAT out-of-the-box but Windows requires third-party tools in order to read HFS-formatted devices.
 

ModeMAC

macrumors newbie
Original poster
Feb 8, 2005
23
0
hey guys...i'm formatting using "8 way", but damn!...how long does this take?!

it's been going for like 40 min now and it's stopped at like 4 pixels barely.
it hasn't moved!

does it take THAT LONG or is it stuck?

_chris
 

Mechcozmo

macrumors 603
Jul 17, 2004
5,215
2
ModeMAC said:
hey guys...i'm formatting using "8 way", but damn!...how long does this take?!

it's been going for like 40 min now and it's stopped at like 4 pixels barely.
it hasn't moved!

does it take THAT LONG or is it stuck?

_chris
Looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooog time.

dejo said:
Yeah, most current Macs use HFS for formatting
Its actually HFS+ yknow....
HFS -System 2 to System 7
HFS+ -System 8.1 to Current
 

ModeMAC

macrumors newbie
Original poster
Feb 8, 2005
23
0
true that...i just got back from dinner and it moved a LITTLE bit...so yeah...it isn't stuck.

thanx :-D

_chris
 

superbovine

macrumors 68030
Nov 7, 2003
2,872
0
Lacero said:
8-Way Random Write is government-level security for erasing disks that can not be recovered. I doubt any of us has data that needs this level of erasure protection, unless of course you are self-professed religious person, on the edge of death, and need to erase your large stash of donkey porn videos.
Well, if you ever bought a used computer or a used hard drive before and pulled the old data that was erased the hard drive then began to read there address book, checking account balances, surfing history, txt that contains passwords, turbo tax files, family pictures, etc etc etc
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.