Hi,

are you an end user or a 3rd party developer ?

I think the DHSM API is covered under a develover agreement.

DHSM doesn’t actually move / copy data – that the archiving / HSM application needs to do itself using normal file protocols.

DHSM just provides an API to manage stub files and some other tasks.

Rainer

Thank you for answer.

Could you describe the mechanism for creating a snapshot of file system, which(file system) is located on another EMC Celerra server?
Does the EMC Celerra has their advanced mechanisms to transfer files from external share to Celerra file system?

Thanks in advance!

Checkpoints really dont have anything to do with FilerMover – you can create them via CLI or XML API

No – we don’t deal with copying data to or from the VNX – we act as a server not a client (with the exception of a DHSM recall)

Thank you for answer, Rainer.

Sorry about the molestation. We are not worked earlier with such systems and still hard for us to understand all the features of the EMC Celerra.

You said: "No – we don’t deal with copying data to or from the VNX – we act as a server not a client (with the exception of a DHSM recall)". 
What do you mean by "exception of a DHSM recall"?

So, we undestand, that the most logical and correct solution - it is create checkpoint of local EMC Celerra file system.

But if we need to create checkpoint of some network share(for example from another EMC Celerra server)? EMC Celerra can't help us to consistent copy from this share to local file system? EMC Celerra can't help us to synchronize data between local file system(where we copied data from share) and share?

Thanks in advance.

What I mean that we work as a server – a client ask us for a file (read) or to store a file (write)

Now when a file was archived with DHSM and replaced by a stub and we get a read request from a client we in turn act as a client to get that file from secondary storage so that we again (as a server) can deliver it as a client.

Or if you look at it another way – we typically do not initiate a conversation – we just respond to it

Rarely do we send out something to another system without being asked for it

I don’t understand why you want to do a snapshot