- Low latency
- High I/O
- Large bandwidth
- Helps my SAN perform at a high rate
It has improved the end-user experience:
Replication: XtremIO has none
Controller failover: When you lose one of the scale-out nodes on XtremIO, your hosts will see a large drop in I/O while it occurs and EMC is unaware of how their controllers work. As it is shown in their demos, the work load after a failure is spread across each node. But if you look at the “ACTUAL” process, the work is loaded on each node until that node gets to 100%. Then, the work goes to the next node and repeats. So, in the event of a failure, you will have several nodes at 100% and others at 25% load.
Data recovery: In the event of a dual power supply failure, the array has to be recovered from a backup.
I have used EMC for two years.
We did have stability issues.
We have not had any scalability issues.
Technical support is average. EMC has no telemetry.
We switched for performance and cost.
The initial setup was straightforward.
There are better solutions available.
We evaluated Pure Storage, Nimble Storage, NetApp, IBM, and Cisco.
Don’t use this product. There are better solutions out there.