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Packet ring buffer: Difference between revisions
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No replication means that only a single copy of each packet is written and provides no redundancy. | No replication means that only a single copy of each packet is written and provides no redundancy. | ||
This level gives the highest write bandwidth for a given number of disks; single replication means that one additional copy of each packet is written to some other disk and thus reduces the total write performance for a given number of disks to half the performance of no replication. | This level gives the highest write bandwidth for a given number of disks; single replication means that one additional copy of each packet is written to some other disk and thus reduces the total write performance for a given number of disks to half the performance of no replication. | ||
Double replication and triple replication | Double replication and triple replication writes two and three additional copies of each packet respectively. | ||
Note that for each level to work there must be at least the number of replications + 1 disks available in the cluster. | Note that for each level to work there must be at least the number of replications + 1 disks available in the cluster. | ||