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Difference between revisions of "Installation (ESX)"
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→Poor throughput: Updated terminology
(→Troubleshooting: Added "ESXi Lockup") |
(→Poor throughput: Updated terminology) |
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=== Poor throughput === | === Poor throughput === | ||
Use <code>esxtop</code> on the service console and switch to the disk monitor. Enable views for latency, you will see values like GAVG, KAVG and DAVG. | Use <code>esxtop</code> on the service console and switch to the disk monitor. Enable views for latency, you will see values like GAVG, KAVG and DAVG. | ||
* '''GAVG''' is the total latency on IO commands averaged over 2 seconds | * '''GAVG''' is the total guest experienced latency on IO commands averaged over 2 seconds | ||
* '''KAVG''' is the hypervisor IO latency averaged over 2 seconds | * '''KAVG''' is the vmkernel/hypervisor IO latency averaged over 2 seconds | ||
* '''DAVG''' is | * '''DAVG''' is the device (HBA) IO latency averaged over the last 2 seconds (will include any latency at lower level, eg SAN) | ||
Latency occurs when the hypervisor or physical storage cannot keep pace with the demand for IO | Latency occurs when the hypervisor or physical storage cannot keep pace with the demand for IO | ||