-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Saturday, 2010-05-22 at 16:13 +0300, Mark Goldstein wrote:
On Sat, May 22, 2010 at 3:46 PM, Carlos E. R. <> wrote:
I wonder if there are opensource compressors with similar features?
7-zip, probably? It does have -v (volume) option. I do not know whether it creates recovery data. I never used it for such a huge volumes, but on usual stuff it is mostly better than rar. (There is p7zip version for Linux and some GUI front-ends, like Q7Z).
I'll have a look.
I would expect the compressor to be slow on huge data set. It has to do some preliminary pass or at least some level of "looking forward", has it not?
I suppose :-) I'm now testing another alternative: zisofs. First I split the original image file: time nice split --bytes=220M --numeric-suffixes --suffix-length=4 ../sda.img sda. It produced 738 files in 113 minutes (same hard disk) (cpu time 10s user, 5' sys). The next step is to compress the data: time nice mkzftree -p 4 splits/ splits.zisofs I see the HD churning at 30..50 MB/s, with 61 files so far of variying size (summing 8.0 GiB now). It has some time to run, so I'll get my siesta now :-) Next step will be to produce the iso images, which are compressed and readable directly by the system. Humm... what will "dvdisaster" say about those images, I wonder? It might not work :-? - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAkv4ATsACgkQtTMYHG2NR9XWFQCeN1q2TouematlMN8yR+Dtbn6a V10AnRJsHd/kKl0mhTJfyhjd+6ZCxe32 =+2CF -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org