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тАО03-31-2011 04:56 AM
тАО03-31-2011 04:56 AM
format HP-UX disk
We are decommissioning our prod boxes which have HP-UX 11i Ver1 O/S on it. We want to format disks to clean up data.
a) We want to cleanup data so that data can't be recovered with any method
b) We want to use these disks again for some other purpose.
I read about "mediainit" and assume that will work for both a) and b)
1)If "mediainit" works can some one give me detail steps on how this can be done.
2)If "mediainit" is not the option than what is the other methods to do this.
Thanks
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тАО03-31-2011 05:36 AM
тАО03-31-2011 05:36 AM
Re: format HP-UX disk
Any method?
Shredder them.
Hope this helps!
Regards
Torsten.
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тАО03-31-2011 05:38 AM - last edited on тАО08-04-2011 09:51 AM by Kevin_Paul
тАО03-31-2011 05:38 AM - last edited on тАО08-04-2011 09:51 AM by Kevin_Paul
Re: format HP-UX disk
If the data on the disks is worth more than the price of new disks, the most reliable method is to actually physically destroy the disks.
But if the disks need to be reusable, overwriting the data (possibly multiple times) is the best you can do.
For any disks manufactured in this century, "mediainit" is not recommended:
http://viktorbalogh.net/blog/hp-ux/hp-ux_sysadm/some-thoughts-about-mediainit-low-level-formatting-and-why-it-mustnt-be-done
Michael Roberts' answer in this old thread includes instructions for building a custom Ignite boot media (=a bootable tape) that will completely overwrite all disks attached to a HP-UX system with zero bytes:
http://h30499.www3.hp.com/t5/General/Best-way-to-DOD-wipe-drives-with-sensitive-data/m-p/4926568#M159101
MK
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тАО03-31-2011 05:40 AM
тАО03-31-2011 05:40 AM
Re: format HP-UX disk
Having said that, running your disk thruough this command, several times in succession, should give you a peace of mind :
dd if=/dev/urandom of=dev/rdsk/cXtXdX bs=8192k
Hope this helps.
UNIX because I majored in cryptology...
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тАО03-31-2011 06:54 AM
тАО03-31-2011 06:54 AM
Re: format HP-UX disk
So, can i run dd command on non O/S disk while system is UP and finally run on O/S disks. Our O/S disks are software mirrored on two disks. How we can do this for O/S disks
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тАО03-31-2011 06:58 AM
тАО03-31-2011 06:58 AM
Re: format HP-UX disk
Same way as for the other disks. The only difference is that the dd will eventually fail when it overwrites enough of the OS and the machine fails.
Pete
Pete
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тАО03-31-2011 07:01 AM
тАО03-31-2011 07:01 AM
Re: format HP-UX disk
Hope this helps
UNIX because I majored in cryptology...
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тАО03-31-2011 07:05 AM
тАО03-31-2011 07:05 AM
Re: format HP-UX disk
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тАО04-01-2011 06:44 AM
тАО04-01-2011 06:44 AM
Re: format HP-UX disk
You may wish to consider WipeDisk/ux from Allegro Consultants (www.allegro.com). The product can be rented if you don't have an on-going need for the product.
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тАО04-02-2011 05:53 AM
тАО04-02-2011 05:53 AM
Re: format HP-UX disk
1) boot Ignite 11.31 from network
2) select [ Run an Expert Recovery Shell ]
3) tftp the files 'libpthread.so.1' and 'mediainit' from another system
4) chmod u+x mediainit
5) mv libpthread.so.1 /usr/lib/hpux32/
6) mediainit -S