Re: [Virtuoso-users] virtuoso striping

2015-04-15 Thread Morty
Yes, you can "split" a large file into many small files. At the colo, you can put them back together again. The command to put them back together is "cat". The "join" command does something else, so you don't want to try to use it. NB: this is actually what the cat command is for. "cat" is sho

Re: [Virtuoso-users] virtuoso striping

2015-04-15 Thread Gang Fu
We want to transfer the files to another location, 'colo' for disaster recovery. The long distance transfer is time-consuming and may fail sometimes. We are using rsync, and we believe rsync a 500 GB file or rsync many small files indeed make difference, since rsync does a checksum validation befo

Re: [Virtuoso-users] virtuoso striping

2015-04-15 Thread Morty
On Tue, Apr 14, 2015 at 12:24:22PM -0400, Gang Fu wrote: > We want to copy a large virtuoso db from one server to another in > different location. We cannot copy single 500 GB db file, which is > slow and unstable. So we want to break the db files in different > segments. I have tried with virtuo

Re: [Virtuoso-users] virtuoso striping

2015-04-15 Thread Gang Fu
Thank you very much, Hugh! Will the restoring from the online backup series take some times, or momentarily? Our system team has concern, if the restore take long time for large database (~10 billions of triples), we do not have enough redundancies to guarantee the service. Best, Gang On Tue, Ap