Subject Re: [firebird-support] Symantec livestate recovery
Author Daniel Rail
Hi,

At March 26, 2005, 13:36, Steffen Heil wrote:

> As far as I understand volume shadow copies, it means the same here.
> Changes made by any programm are not visible by another programm that
> started a volume shadow copy for itself.

Symantec Livestate Recovery uses Windows Volume Shadow Copy(VSS).
Firebird is not VSS aware. And, when reading Symantec's documentation,
even Oracle is not VSS aware. So, essentially, special precautions
need to be used when using VSS with Firebird. What I mean by VSS
aware, is that it would require that Firebird would be able to
coordinate its I/O operations with the creation and manipulation of
shadows with VSS. And, that is why I'm saying that Firebird isn't VSS
aware. Firebird has it's own shadow mechanism that can be used to
perform the same thing, and can be used on more than one platform.

You can get more information on VSS here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vss/base/volume_shadow_copy_reference.asp

--
Best regards,
Daniel Rail
Senior Software Developer
ACCRA Consultants Inc. (www.accra.ca)
ACCRA Med Software Inc. (www.filopto.com)