How Available Are Clusters; Application Of Availability - NexStor 4900F Series User Manual

How Available are Clusters?

This table outlines the maximum availability per downtime in the different
architectures:
Architecture
Continuous Processing
Fault-Tolerant
Clusters
High Availability
Stand Alone System

Application of Availability

The NexStor 4900F Series Storage Systems implementation of availability within
its supported topologies are as follows:
Architecture
Continuous Processing
Fault-Tolerant
Cluster
High Availability
Stand Alone System
Chapter 2 - Topologies and Operating Modes
Maximum Availability Downtime per Failure
100.00% None
99.9999% Cycles
99.9 - 99.999% Seconds to
minutes
99.9% Minutes
99.5% Hours
Not Available
Duplex Multi-Port
Duplex Multi-Port
Duplex Multi-Port
Simplex Dual Port
Downtime per Year
(in minutes)
0
0.5 - 5
5 - 500
500 - 10,000 (disk
mirroring)
2,600 - 10, 000
(without disk
mirroring)
Corresponding Topology
How Available are Clusters?
43