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тАО12-22-2005 12:22 AM
тАО12-22-2005 12:22 AM
situation;
i have two 18 gb drives mirrored.
Need to format them so no data exists
server will be sold to a reseller.
Mediainit? or DD? please help.
Solved! Go to Solution.
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тАО12-22-2005 12:27 AM
тАО12-22-2005 12:27 AM
Re: Erasing the root disk..
I'd go for dd as mediainit has been slow for me. dd if=/dev/zero of=/dev/dsk/cXXdXXtX
This should to the trick for normal standard data sensitivity.
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тАО12-22-2005 12:27 AM
тАО12-22-2005 12:27 AM
Re: Erasing the root disk..
To my way of thinking, there shouldn't be any sensitive data on the root disk anyway.
Pete
Pete
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тАО12-22-2005 12:30 AM
тАО12-22-2005 12:30 AM
Re: Erasing the root disk..
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=964689
It seems to me that dd is the favourite, being faster but still good enough.
I thought pvcreate would make data irretrievable, the post above says otherwise.
Cheers.
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тАО12-22-2005 12:33 AM
тАО12-22-2005 12:33 AM
Re: Erasing the root disk..
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тАО12-22-2005 12:45 AM
тАО12-22-2005 12:45 AM
Solutiondd if=/dev/zero of=/dev/rdsk/c0t6d0 bs=1024k
It's true that pvcreate won't actually destroy any data on the disk but it makes it darn hard for anyone to recover unless they knew the layout of the disk to start with. Even destructive methods like dd and mediainit leave data behind that the determined snoop can get at.
Pete
Pete
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тАО12-22-2005 12:49 AM
тАО12-22-2005 12:49 AM
Re: Erasing the root disk..
I do agree with Pete that there is/should be very little to get rid of on the root disks, still better to be safe I guess.
What was the block size you used?
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тАО12-22-2005 12:51 AM
тАО12-22-2005 12:51 AM
Re: Erasing the root disk..
It never finished. I just killed it, and i can still see all files on vg00 like it did nothing.
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тАО12-22-2005 12:56 AM
тАО12-22-2005 12:56 AM
Re: Erasing the root disk..
The kernel is running in memory so I would think it should be able to overwrite it's own files before it died.
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тАО12-22-2005 12:59 AM
тАО12-22-2005 12:59 AM
Re: Erasing the root disk..
512 is the default and writes out 512 byte blocks - it will definitely take forever. Try it with 1024k.
Pete
Pete