Thank you. I have a high bandwidth connection. But that also means that regular repairs on the backup data-center will take a long time.
2013/3/14 Jabbar Azam <aja...@gmail.com> > Hello, > > If the live data centre disappears restoring the data from the backup is > going to take ages especially if the data is going from one data centre to > another, unless you have a high bandwidth connection between data centres > or you have a small amount of data. > > Jabbar Azam > On 14 Mar 2013 14:31, "Rene Kochen" <rene.koc...@schange.com> wrote: > >> Hi all, >> >> Is the following a good backup solution. >> >> Create two data-centers: >> >> - A live data-center with multiple nodes (commodity hardware). Clients >> connect to this cluster with LOCAL_QUORUM. >> - A backup data-center with 1 node (with fast SSDs). Clients do not >> connect to this cluster. Cluster only used for creating and storing >> snapshots. >> >> Advantages: >> >> - No snapshots and bulk network I/O (transfer snapshots) needed on the >> live cluster. >> - Clients are not slowed down because writes to the backup data-center >> are async. >> - On the backup cluster snapshots are made on a regular basis. This again >> does not affect the live cluster. >> - The back-up cluster does not need to process client requests/reads, so >> we need less machines for the backup cluster than the live cluster. >> >> Are there any disadvantages with this approach? >> >> Thanks! >> >
