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тАО12-20-2004 01:20 AM
тАО12-20-2004 01:20 AM
Will INIT of a disk do a zero replace?
Chaim
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тАО12-20-2004 01:26 AM
тАО12-20-2004 01:26 AM
Re: Will INIT of a disk do a zero replace?
Some people are only happy with physical destruction of the media in a furnace!
It depends on how particular the customer is. The commertial ones I've dealt with have wanted three runs of INIT/ERASE.
Purely Personal Opinion
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тАО12-20-2004 01:43 AM
тАО12-20-2004 01:43 AM
Re: Will INIT of a disk do a zero replace?
maybe
http://groups-beta.google.com/group/comp.os.vms/browse_thread/thread/9ac350f609a388aa/ee0afc6f74d74f65#ee0afc6f74d74f65
gives some reasons why destruction is maybe even a GOOD option towards the recipients as well.
Modern disks are so (relatively) cheap, have so much more capacity, consume so much less power, that even for itself that would be quite a valid argument!
Proost.
Have one on me.
Jan
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тАО12-20-2004 03:07 AM
тАО12-20-2004 03:07 AM
Re: Will INIT of a disk do a zero replace?
$ help analyze/media/exercise
Run it with /LOG so you get a message at the end with what it found, if anything. You can overwrite the disk with whatever pattern you want and of course run it as many times as you want depending on the local paranoia level. This has the added benefit of locating and flagging any bad blocks the disk may have. I would discourage the new customer from accepting used disks that have any bad blcoks at all since they may be an early sign of a more general failure.
If it's not convenient to do this from VMS, the console firmware and/or the storage array firmware (if applicable) may have something similar.
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тАО12-20-2004 07:51 AM
тАО12-20-2004 07:51 AM
Re: Will INIT of a disk do a zero replace?
Note that INIT/ERASE will only erase blocks currently reachable from the sector map. It will not find any bad blocks that have been replaced. Although it's a very long shot, it's feasible those blocks could be read by someone determined enough...
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тАО01-04-2005 02:15 PM
тАО01-04-2005 02:15 PM
Re: Will INIT of a disk do a zero replace?
Sorry to use forum but can't figure out another way to reach you. What's your current email?
Harry Gross