On Wed, Oct 31, 2012 at 13:27:49 -0500, Ken Teh wrote:
> Do you still use mt and tar for backups on LTO drives or is that so uncool compared to bacula?  Does that mean I'm uncool if I confess I still do?  ;)
>

Yes, we even still use 'find | cpio' ... ;)
But nowadays, when the files become bigger than 8GB, we must switch our scripts to 'tar'

To increase the performance of the tape-drive, we use 'tar --blocking-factor=2048' to write
with Blocksize of 1MB, but with our new HP LTO5 Tape Blade (connected via SAS)
we got input/output errors, so we must switch to Blocksize of 512KB... :(
On our HP LTO5 MSL4048 (connected via FibreChannel) it is still possible to use 1MB Blocksize.

> Do you still need mt if you use a package like bacula?
>

We need 'mt' to rewind the tape in case of an error, to retry it, and at the end of
the backup to eject the tape from drive, so the operators only have to grab the tape
or the see there was an error, if the tape isn't ejected...


> Thanks!

So long,
	André

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