Hi Mariusz !
Welcome to the underrated migrating club ! :) I also tried to migrate
between SDs to no avail. I supposed that migration for us bacula users
using FILE storage systems would be implemented as well, but alas, it is
not.
Why did you want to migrate the files ? Something connected to expanding
a filesystem ? Because this is a feature of FILE based volumes, that
they are not easily extendable (as opposed to tapes) and migration could
be a good way to transfer data between old (let's say a 1TB LVM system)
and new (4TB netapp) storage systems.
Finally, I moved the volumes themselves to the new storage server (10X
400GB SATA disks), and "migrated" the old server's TCP/IP address to the
new server. bacula picked up from there and it eventually worked quite
well, except for the Intel 965 motherboard that is not well supported by
linux.
Cheers,
Michael
Mariusz Czulada wrote:
> Hi,
>
> Dnia 19-04-2007 o godz. 22:42 Arno Lehmann napisał(a):
>> Hi,
>>
>> On 4/19/2007 4:48 PM, Mariusz Czulada wrote:
>>> Hello,
>>>
>>> I have yet another problem to solve. I didn't find similar case in
>>> documentation.
>>>
>>> I have two separate systems in two locations (let's say "site1" and
>>> "site2"). In "site1" I have local DDS5 drive and TS3310 library. In
>>> "site2" server is only equiped with DDS5. Also, "Site1" is accesible
>>> from "Site2" via WAN. So, "Site1" configuration looks like this:
>>>
>>> [...]
>>>
>>> We could not buy a dedicated library for "Site2", OTOH TS3310 in "site1"
>>> is big enough to hold backups from both sites. So, I thought about
>>> migrating jobs stored in "localfiles-2" to a library via WAN connection.
>>> IHMO I should add such items:
>>>
>>> Site2:
>>> - Director2:
>>> * storage: ts3310-1 (@StorageDaemon1)
>>> * pool: tapelibrary-2
>>> +storage: ts3310-1
>>>
>>> So I could migrate locally stored jobs from "fileststem-2" to
>>> "tapelibrary-2" which resides on remote ("Site1") library.
>>>
>>> !!!!!!
>>>
>>> My question is: are there any weak points in this idea?
>> Yes...
>>
>>> I.e. is it
>>> possible to migrate between different storage daemons?
>> No, that's not possible. Perhaps it will be implemented some day - I
>> talked with Kern about this - but I'm quite sure nobody started
>> implementing this.
>>
>
> Hmm... This highly complicates my idea :/ Have to 'redesign' the whole
> concepts...
>
> BTW. If it was mentioned previously - is it possible to add "multi SD
> migration" to the TODO list (question to developers, I think)? I hope
> I'm not the only one to use this feature. IMHO it could be very
> important in backing up multiple/distributed systems, where it is much
> easier and cheaper to have one big library for long term storage then
> equip every system/site with dedicated, smaller libs.
>
>>> Can [slow] WAN
>>> connection (some 2 Mb/s I think) affect backup reliability?
>> Not reliablility itself, but the duration of the jobs alone makes them
>> more easily affected by network problems.
>>
>
> I keep it in mind, but was thinking rather about possibiliy of problems,
> when "feeding SD with data" is [probably] slower then a library/drive
> speed.
>
>>> !!!!!!
>>>
>>> Any comments and suggestions are gratly appreciated.
>>>
>>> Regards,
>>>
>>> Mariusz Czulada
>> Arno
>>
>
> Mariusz
>
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