On Mar 22, 2007, at 11:55 AM, Josh Fisher wrote:
>
> Erich Prinz wrote:
>> True, drives are assigned the next available drive letter.
>>
>> In many of the simple deployments I have, it is a simple two disk
>> rotation. The USB drives always get the same drive mapping - which
>> can easily get thrown out of whack with the introduction of another
>> device by an end user. Hence why servers run headless and locked away
>> in closets.
>>
>> Just thinking out loud, but Is it possible to use UNC versus drive
>> mappings?
>>
>>
>
> The win32 Bacula SD probably uses fopen() and so would support UNC
> paths. But I don't know if it is possible to symlink to a UNC path,
> so I
> don't know if UNC paths would work using the approach vchanger takes.
> Also, that would not affect how USB drives are handled.
Hmmm.... isn't this the mechanism drive mapping uses
essentially a
symlink?
>
> Perhaps the best approach would be to force the use of a Windows 2k or
> greater NTFS filesystem on the USB drives to be used. Then it would be
> possible to mount the USB drive partition at a "reparse point" on the
> directory tree of a fixed disk NTFS volume, rather than assigning it a
> drive letter at all. A NTFS reparse point is essentially what the rest
> of the world calls a mountpoint. The difference is that in *nix any
> drive partition can be mounted at a given mountpoint, so we can
> have all
> of the drives associated with a virtual changer always be mounted
> at the
> same mountpoint and they don't even have to use the same
> filesystem. I'm
> not so sure how Windows determines which USB drive partitions get
> mounted at a particular reparse point, so I'm not sure if it is
> possible
> to have one reparse point at which all associated USB drives will get
> mounted.
I don't know either.
> I am certain that the FAT32 filesystem could not be used
> without drive letters.
Most USB drives ship with FAT32, however, it carries a 2GB
limit on
file size and that fact can cause issues.
IMO on the WIN side of the world, NTFS would be the only format
to
use for more reasons than just the above.
> However, reparse points would eliminate the drive
> letter assignment problems and at least allow defining one reparse
> point
> per drive.
Robert Nelson would be an excellent resource on this question.
I've
cc'd him too.
>
>> Erich
>>
>> On Mar 21, 2007, at 2:10 PM, Josh Fisher wrote:
>>
>>
>>> Erich Prinz wrote:
>>>
>>>> Any chance of a Wintel version becoming available?
>>>>
>>>>
>>>>
>>>>
>>> In Windows, drives are mounted by drive letter. It is possible to
>>> mount
>>> a particular USB drive at a particular drive letter and make that
>>> mapping permanent. However, as far as I know, it is not possible to
>>> force multiple USB drives to be assigned the same drive letter. If
>>> I am
>>> wrong, and it is possible to permanently assign the same drive
>>> letter to
>>> more than one drive, then a win32 version would not be too hard.
>>>
>>> Another way might be to assign drives to virtual changers by drive
>>> letter, where each drive letter would map to a particular
>>> magazine and
>>> the drive letters are reserved for those drives. That seems
>>> feasible,
>>> and I will investigate it.
>>>
>>>
>>>
>>>> On Mar 20, 2007, at 2:04 PM, Josh Fisher wrote:
>>>>
>>>>
>>>>
>>>>> The latest version is 0.7.4 and was posted to the bacula-users
>>>>> list
>>>>> 2006-12-12. It currently isn't hosted anywhere that I know of,
>>>>> and I don't think attachments are kept in the archives, so
>>>>> here it
>>>>> is again. Perhaps I should find somewhere to host it.
>>>>>
>>>>> I don't know if anyone else is using this method for USB drives,
>>>>> but I can say that I have been using it with bacula 2.0.x for
>>>>> several months without any problems.
>>>>>
>>>>> --- Josh Fisher
>>>>>
>>>>> Hristo Benev wrote:
>>>>>
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> what is latest version of removable disk howto and where it could
>>>>>> be accessed?
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> Hristo Benev
>>>>>>
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