Re: [Bacula-users] disk-changer Autochanger
2017-01-07 14:12:09
Hello Dan,
Thanks for your email. Please see below ...
On 01/07/2017 05:56 PM, Dan Langille wrote:
Kern,
Happy New Year sir.
Happy New Year to you and the Bacula users too.
BTW, I always get a chuckle out of recognizing names
in software. I knew you worked on apcupsd, but still enjoyed
updating the BATTDATE using apctest earlier this week.
Yes, it was my first "real" open source project. Just before 2000 I
was project manager of Apcupsd. However, I wanted a bigger more
challenging project. I was fortunate enough to have Adam who was
interested in it, so he took over the management of the project :-)
I received email from someone wanting to create a
post of vChanger for FreeBSD. They have patches and are
proceeding there. I mentioned I was using disk-based
auto-changer. He mentioned it's not for production and, when
queried, showed me a few references:
I got the concept from someone else, and have been
using in *my* production for some time now.
Is this status based upon 'we don't want to support
it' or dodgy elements I should be aware of.
Well, the status is sort of "we don't want to support it". The
major points are:
1. In my view the Bacula Virtual Autochange works as well or better
than the disk-changer.
2. vChanger does the same thing, is well maintained, and has many
additional feature.
3. Why maintain disk-changer.
4. In an upcoming version of Bacula that will have Cloud support,
disk-changer (and also vChanger) will not work with Cloud volumes,
because those volumes are directories rather than files (actually,
they are directories that contain a set of "parts" that make up the
Cloud Volume. In the Cloud, Bacula parts are more often called
"objects". Consequently, to make disk-changer continue to work
across even Cloud volumes will require some modifications. The
current Virtual Autochangers just work out of the box.
Either way, I'm ok with either leaving it as is, or
moving to vChanger, now that a port is coming.
That is the good part of open source, everyone gets to do it his/her
way.
Based on your answer, I'm happy to repeat this query
over the mailing lists to get it out there.
I've copied the bacula-user's list so that they will benefit from
our emails ...
Best regards,
Kern
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