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Out of service for 5U to 3U?

P

ptrubey

Well-known member
Wow, looks like doing a K server to K server import for a 5U to 3U conversion takes many days. And to make it worse, it seems that the 5U cannot be used while the import is taking place, making the system inaccessable until the transfer is done. Any reason for this?
 
K set up the migration to be a dedicated process, and although I have not asked the "why" question, it seems logical that risking the movement of all data between servers (there is ALWAYS risk) is lessened to some extent by making the process as clean and uncomplicated as possible. Just a guess.


Jim
 
Why would there be risk unless the migration deletes the movies off the old server as it transfers them to the new server? Uh, unless that's what they do?
 
May also depend in part on whether it is a straight copy-paste or a psuedo rebuild across the network. While I would certainly hope not the latter, you still would not want to unduly "stress" the new server or take up bandwidth better spent getting data from point-A to point-B. The other possibility I can think of is due to the default behavior of importing to wherever there is more space, which I would think could be fixed by a flag set in the server during the process that says "I'm Full" or "Do not import here."

Either way, yeah, I would hope it runs a checksum or five on the new server before deleting from the old one.
 
I will say at the outset that I am no computer expert. But it strikes me that you really need the system locked to prevent any changes from occurring while the data is being copied/migrated to the new server. Let's put importing new movies to the side. (I would assume that one clearly would not want the system to be adding information to the hard drive array while you are trying to migrate data from the array.) Doesn't the system record certain information if you play a movie and doesn't that information have to be recorded on the hard drive. For instance, doesn't the system keep track of where you have paused a movie.

Further, copying RAIDs--especially ones with many terabytes of data--will take a long time. I assume that this K-Scape migration process also takes place over a network. If so, the speed limitations of a network -- even a gigabit switch -- will reduce the "copy rate" even further (as compared to a direct disk to disk transfer).

Just my random thoughts. In any event, here is hoping that the migration will finish soon so that you can have full enjoyment of your K-Scape.
 
Wow... didn't know that. What's the process like? Could you have asked for it done with just a group of movies first? or is it an "all or nothing" type of thing with no options?

I've yet to see the interface for this customer-initiated server migrations, so would be great if you can give some details of how it works.

(hey, what else do you have to do in that time you'd otherwise be watching movies! ;) )
 
You should still be able to use the 3U server (the server being replicated *to*). You just can't use the 5U server (the one being replicated).
 
Croptop said:
You should still be able to use the 3U server (the server being replicated *to*). You just can't use the 5U server (the one being replicated).
Click to expand...

That's right. I lucked out because I had two 5U's going to two 3U's. I unclustered the 5U's and replicated them seperately so that I was never without access to my library. The only issue was having to switch the players between the two sources.
 
Bartok said:
Further, copying RAIDs--especially ones with many terabytes of data--will take a long time. I assume that this K-Scape migration process also takes place over a network. If so, the speed limitations of a network -- even a gigabit switch -- will reduce the "copy rate" even further (as compared to a direct disk to disk transfer).
Click to expand...
The transfer rate is about 6 movies an hour according to Kaleidescape. Of course your milage may very.
 
is there any ability to control what movies are done in what order? or prioritize, or group them and just do part of the library first? what's the UI like?
 
You can select which movies to move over, however that adds to the complexity of the process. The easiest way is just select all and copy over.
 
The only way to avoid copying *all* of your content is to drag titles into the trash (and then restore them once replication is complete). Otherwise, it's an all-or-nothing process.
 
Croptop said:
You should still be able to use the 3U server (the server being replicated *to*). You just can't use the 5U server (the one being replicated).
Click to expand...
Sorry, one more question on this, as I may be doing it myself soon. While the transfer is happening, I understand you can play back movies/music that have finished being moved... playback from the destination server is available. Is Importing also available during transfer, putting new content directly onto the new destination server or another server in the home that ISN'T a part of the transfer?
 
josh said:
Sorry, one more question on this, as I may be doing it myself soon. While the transfer is happening, I understand you can play back movies/music that have finished being moved... playback from the destination server is available. Is Importing also available during transfer, putting new content directly onto the new destination server or another server in the home that ISN'T a part of the transfer?
Click to expand...

Yes. You have full access (including importing) to all servers other than the source server.
 
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