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Extremely high avg response time reported in EM13

We have a exadata X3-2 with 3 storage cells and normal redunceny.

EM13 is reporting insanely slow avg response times. Upwards of 300,000 ms. YES 3 hundred thousand.

This seems like a bug in EM13. We're having performance issues , but this kind of response seems like the system would be unusable. We're opened a SR with oracle, but also seeing if anyone else has seen i/o response times this high in EM13. Attached is a screen shot of the disk cluster.

We are running oracle 18.11 database with ASM is at 18.5


  • Ravi