Thanks all for your reply and informative document!
As stated on my previous message, I was using root to run bacula services and assumed it has no privilege issue. But not sure whether I have to run as bacula ID since I saw some suggested to do so?
root 14419 1 4 May08 ? 06:03:09 /sbin/bacula-sd -v -c /etc/bacula/bacula-sd.conf
root 14440 1 25 May08 ? 1-07:39:19 /sbin/bacula-fd -v -c /etc/bacula/bacula-fd.conf
root 14463 1 0 May08 ? 00:02:01 /sbin/bacula-dir -v -c
/etc/bacula/bacula-dir.conf
I wonder why the command prompted me to check "sg device" but not "sd device" since I was connected a USB docking with dual slots.
Recap:
#Bacula is running as root
[root@backupsys bacula]# /etc/bacula/mtx-changer /etc/bacula/usbchanger1.conf list
/etc/bacula/usbchanger1.conf is not an sg device, or old sg driver
[root@backupsys bacula]# su bacula /etc/bacula/mtx-changer /etc/bacula/usbchanger1.conf list
cannot open SCSI device
'/etc/bacula/usbchanger1.conf' - Permission denied
I am going to have more information by the command with debug option as shown on Dan's website (It's great! Appreciate to share with us!).
Thanks in advance!
Best regards,
Keith
Th
On Tuesday, May 13, 2014 1:07 AM, Radosław Korzeniewski <radoslaw AT korzeniewski DOT net> wrote:
Hello,
2014-05-10 7:58 GMT+02:00 Kern Sibbald
<kern AT sibbald DOT com>:
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Hash: SHA1
Hello,
It sounds to me like you are trying to force an Autochanger, which
is a Bacula device that typically works with physical tape
autochangers to work with USB keys. While this is possible (example
disk-changer, virtual-changer), you need to either use an existing
script or you need to understand the details of the Autochanger
implementation.
There are two other possibilities:
1. The Bacula built-in virtual autochanger that has been discussed
on this list a number of times, and rejected by a number of people,
but it does work in large production environments.
I can confirm Kern's words - one of the largest Bacula build-in virtual autochanger configuration which I was implemented consist of 80 devices in a single autochanger. It works a far better then any disk-changer or vchanger scripts.
best regards
--
Radosław Korzeniewski
radoslaw AT korzeniewski DOT net
