Hi Dimitri,
On Fri, May 6, 2016 at 6:39 AM, Dimitri Maziuk <dmaz...@bmrb.wisc.edu>
wrote:
> On 05/05/2016 05:55 AM, Wanderlei Huttel wrote:
>
> > I understood that you have 4 hard disks ,so you need 4 magazines and 4
> > Devices in bacula-sd.
>
> No you don't, you need one autochanger and one device in bacula-sd,
> posted config is correct.
>
Yup. That is what I understand as well. You only need a minimum of one
device per autochanger. Even if you have 100s of physical disk drives
(magazines) in rotation, you need only one device for the autochanger.
> If you have autofs mounting them, have you tried
>
> magazine = /mnt/vchanger/1fde15be-83a4-4b67-accc-378d5fa10ea7
> magazine = /mnt/vchanger/412060d2-7be4-4719-8089-2ee6cfd28624
> ...
>
> instead of "uuid:..."?
>
Not yet try that. This is my first attempt to configure Bacula.
My previous understanding is that I have to configure both udev and autofs
in order for the ease of plug-n-play. However, Josh's reply to my initial
message mentioned that I "should not configure for both autofs and udev at
the same time, but rather one or the other".
With that from Josh, I'm going to use udev instead for plug-n-play. That
way, even less technically inclined people (eg wife and children) can help
to swap the set of disks (magazines) from the 2-slot hotplug dock with
another set of disks for Bacula to use.
> Furthermore, do you intend to use more disks?
Yes, I have intention to use more disks in future if the need
arises...maybe even 4TB / 8TB drives. This is the reason why I used
vchanger with Bacula. Else, I'll just add more SATA ports and permanently
mount the drives. :)
> The 5th disk will have a
> different uuid and you'll have to update all your configs. Whereas
> mounting them as /mnt/vchanger/1, /mnt/vchanger/2, etc., and using those
> in "magazine =" should sidestep that issue.
>
I'm not sure if I really understand the above. But let me try:
IF I use udev, then when I add more drives, I'll have to add "magazine =
UUID:..." to /etc/vchanger/vchanger01.conf. Also, I'll need to run
vchanger-genudevrules > /etc/udev/rules.s/96-vchanger.rules.
if using_udev = true
if add_more_drives = true
append "magazine = UUID:..." to /etc/vchanger/vchanger01.conf
run vchanger-genudevrules > /etc/udev/rules.s/96-vchanger.rules
endif
endif
BUT, IF I used autofs, then when I add more drives, I'll only have to add
"magazine = /mnt/vchanger/<UUID>" to /etc/vchanger/vchanger01.conf.
if using_autofs = true
if add_more_drives = true
append "magazine = /mnt/vchanger/<UUID>" to
/etc/vchanger/vchanger01.conf
endif
endif
Are there any other config files to modify that I missed out?
Thanks.
Pann
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