Re: [Xen-users] Clean deleted space in linux diks?

["Niels Dettenbach (Syndicat IT&Internet)" <nd@xxxxxxxxxxxx>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256



James Pifer <jep@xxxxxxxxxxxxxxxx> schrieb:
>We run different version of SLES. Are there any similar tools for linux
>or a way of doing this in linux so the deleted space can be reclaimed?

Shure, use dd or similiar tools.

If you just want to overwrite with zeros you may do a:

dd if=/dev/zero of=/dev/yourdiskorpartition

(you may speed up write by giving a larger blocksize option like i.e. bs=1024k )

if you have enough random data / fast data souce you may use that instead of 
/dev/zero .

Another famous option is to encrypt the full drive and write to it - without 
the key the disk content is "crap" for anyone other...

Beside this there are a lot of utilities which do that job for you - i.e.:
 http://www.thefreecountry.com/security/securedelete.shtml

btw:
On a SAN make shure that all data is written to the physical disks and not to a 
cache / buffer instead (shut it down clean).

hth
cheers,


Niels.

- --
Niels Dettenbach
Syndicat IT&Internet
http://www.syndicat.com
-----BEGIN PGP SIGNATURE-----
Version: APG v1.0.8

iIEEAREIAEEFAk8Rxcg6HE5pZWxzIERldHRlbmJhY2ggKFN5bmRpY2F0IElUJklu
dGVybmV0KSA8bmRAc3luZGljYXQuY29tPgAKCRBU3ERlZRyiDf1lAJ9YDLYHHxYZ
F65eoGxJIDF+Y4xa2QCfaobEP/UvY5l5J9sfHEBsooOkVnE=
=Fc0s
-----END PGP SIGNATURE-----


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users