Hi all,
I hope some people can help me understand how VSP works in Netbackup 6 MP4 and maybe gives me some advice about some issues that I have. I will list here the questions and also the issue that I am trying to solve.
I have let say 2 servers A and B. A and B have each 2 drive c: and d:
Of course, the drive d: is larger than the c: on the 2 servers.
The job backup are already defined.
- What is really VSP?
I have read several posts here and the documentation but I want to be sure that I understand correctly what VSP is and used for. For me, VSP is in fact the netbackup way to manage the backup of open files. Microsoft use VSS but by default in netbackup it is VSP, their own engine. What it does is that it create a virtual drive in conjunction of a temp file (in the folder <drive>:\NBU_VSP_Cache) to store a state of openfile so that it can be safely backed up (hmm don't know if this word exist... sorry i'm french)
- How it is setup from the client and the server?
It seems that VSP is automatically activated on the client. Some people talk about a VSP_USER YES/NO registry parameter but I have check on my server and can't find it... If I want to disable a client, should I have to create it and what is its type? What are the consequences of disabling VSP on a client?
I have not really understand yet why there is some options in Netbackup Mamangement
-> Host properties -> Master servers -> <master> -> client attributes. concerning
the use of either VSS or VSS, global or individual drive snapshop. anyway
A and B are not listed here but VSP seems to be used on those servers anyway.
- Like a lot of users I have a problem with the way some drives are filled up
by VSP... When netbackup do his snaphot operation, it fills my c drive almost
to the point where there is very few space left. I have checked some info
about this but it seems that there is no way to use d: as my VSP cache drive
and still do a snapshop of my c: and d:, am I right?
What I want is to set d: as my prefered drive to put the NBU_VSP_Cache folder.
What I have understand so far is that setting d: in the cache file volume
list field and in the VSP volume excluse list means that d: will be used
to snaptshop C: (the folder NBU_VSP_Cache will be created on d:) but the
d: could not then be backuped up using VSP snaphot. Again, am I right?
What I don't understand is why this temp file grow so fast? If I want to set the maximun cache file size, what should I take into consideration so set it the right way, meaning not too small but large enough to make the backup successfull.
Here it is for now, I really hope that some of my questions could be answered here and well as some good advices to set and use VSP.