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+--- Thread: Zeroing Out HD..How Long? (/showthread.php?tid=73925)
Re: Zeroing Out HD..How Long? - space-time - 03-08-2009
BigGuynRusty wrote:If you are trying to clean the drive so know one can get data off, it is quite useless.
[quote=IronMac]
Hi all,
Am zeroing out a 60-gig drive (8-pass with Panther) and I was just wondering how long will this take? It says that it's writing random data to the drive but the progress bar has barely budged!
Thanks.
Zeroing will not prevent that, off the top of my head I know five techs that can read data off that HDD no matter how much you zero it.
Very little equipment needed, regular PC, and some software.
BGnR
interesting... could you please give more details?
can one store 2 TB of data on a single 1 TB drive? just write the drive with 1 TB of data, erase it and write again 1 TB of new data. Then one can read the new data the regular way, and the old data if one uses a PC and some software, right?
seems like a no brainer to double the capacity for very little effort.
or you could perhaps increase the capacity 8x ?
Re: Zeroing Out HD..How Long? - BigGuynRusty - 03-08-2009
IronMac wrote:Nope, sorry, 8/80/800/8000 doesn't matter.
What? We're talking about zeroing-out and writing random data to the drive...eight times! That won't do it?
Physical destruction will do it though, not the drilling though unless you drill enough so that there is no platter left just shavings.
Just because the platter doesn't mean the data is gone, the equipment to get the data off is rarer, but I know two companies in the SFV in SoCal that still have the equipment that we used back in 1980 to get data off the old RDM Units, still in use, still working, faster now due to updated translation software, and much faster computers.
Heat will do it quite well, home BBQ works great on the platter.
BGnR
Re: Zeroing Out HD..How Long? - BigGuynRusty - 03-08-2009
space-time wrote:If you are trying to clean the drive so know one can get data off, it is quite useless.
[quote=BigGuynRusty]
[quote=IronMac]
Hi all,
Am zeroing out a 60-gig drive (8-pass with Panther) and I was just wondering how long will this take? It says that it's writing random data to the drive but the progress bar has barely budged!
Thanks.
Zeroing will not prevent that, off the top of my head I know five techs that can read data off that HDD no matter how much you zero it.
Very little equipment needed, regular PC, and some software.
BGnR
interesting... could you please give more details?
can one store 2 TB of data on a single 1 TB drive? just write the drive with 1 TB of data, erase it and write again 1 TB of new data. Then one can read the new data the regular way, and the old data if one uses a PC and some software, right?
seems like a no brainer to double the capacity for very little effort.
or you could perhaps increase the capacity 8x ? LOL!
Stop Smoking Crunch!
If you can wait 16 hours to boot up your Mac, it can be done.
BGnR
Re: Zeroing Out HD..How Long? - Black - 03-09-2009
space-time wrote:
can one store 2 TB of data on a single 1 TB drive? just write the drive with 1 TB of data, erase it and write again 1 TB of new data. Then one can read the new data the regular way, and the old data if one uses a PC and some software, right?
seems like a no brainer to double the capacity for very little effort.
or you could perhaps increase the capacity 8x ?
You really shouldn't dole out ideas like this for free.
Get thee to a patent attorney, go!
Re: Zeroing Out HD..How Long? - IronMac - 03-09-2009
Ok, six hrs now...no way will it finish tonight.
Re: Zeroing Out HD..How Long? - GGD - 03-09-2009
IronMac wrote:
Ok, six hrs now...no way will it finish tonight.
What speed drive 5400/7200, and how is it connected to the computer internal/usb/firewire?
Re: Zeroing Out HD..How Long? - BigGuynRusty - 03-09-2009
Black wrote:
[quote=space-time]
can one store 2 TB of data on a single 1 TB drive? just write the drive with 1 TB of data, erase it and write again 1 TB of new data. Then one can read the new data the regular way, and the old data if one uses a PC and some software, right?
seems like a no brainer to double the capacity for very little effort.
or you could perhaps increase the capacity 8x ?
You really shouldn't dole out ideas like this for free.
Get thee to a patent attorney, go! Too Late, better brighter minds have been there for over 35 years.
BGnR
Re: Zeroing Out HD..How Long? - Black - 03-09-2009
GGD wrote:
[quote=IronMac]
Ok, six hrs now...no way will it finish tonight.
What speed drive 5400/7200, and how is it connected to the computer internal/usb/firewire?
And, are we talking canadian hours or U.S. hours?
Re: Zeroing Out HD..How Long? - GGD - 03-09-2009
Black wrote:
[quote=GGD]
[quote=IronMac]
Ok, six hrs now...no way will it finish tonight.
What speed drive 5400/7200, and how is it connected to the computer internal/usb/firewire?
And, are we talking canadian hours or U.S. hours?
The canadian hours are metric, right?
Re: Zeroing Out HD..How Long? - wickedsteve - 03-09-2009
GGD wrote:
A little back of the envelope math.
Let's assume that it can write about 30MB/sec. So, 60,000MB/30MB = 2000 seconds per pass, 8 passes = 16,000 seconds.
16,000/60 = 266.66 minutes
266.66/60 = 4.44 hours. Use that as a ballpark estimate.
Is this theoretical maximum on paper or reasonable expectation of real world performance?