Monitoring the Nytro Cache Performance The Nytro Cache performance monitoring feature enables you to view and monitor the I/O statistics and firmware caching activity. The I/O cache performance indicators include the performance indicators, such as total read I/Os, read hits, read miss, total write I/Os, write hits, write miss and so on. This feature lets you collect the following information: Cache capacity – The size of cache available for caching. Cache utilization – The percentage of the free and in use cache size. Host I/O count – The number of host reads and writes. Hit rate – The percentage of I/Os completed from cache. Average I/O bandwidth – The number of bytes, MBs, and GBs written into the VD and read from the VD. Average host I/O latency – The average time taken to complete an I/O request. Hit count – The number of I/Os completed from cache. Miss count – The number of I/Os that were not found on cache and retrieved from the disk. Other cache statistics – The number of total cache windows, dirty, and non-dirty cache windows. Host I/Os – The number of I/Os completed by firmware and I/Os coming from host. Disk I/Os – The number of I/Os completed by firmware and directed to disk. VD statistics – Information per VD.
Monitoring the Nytro Cache Performance
The Nytro Cache performance monitoring feature enables you to view and monitor the I/O statistics and firmware caching activity. The I/O cache performance indicators include the performance indicators, such as total read I/Os, read hits, read miss, total write I/Os, write hits, write miss and so on. This feature lets you collect the following information:
Cache capacity – The size of cache available for caching.
Cache utilization – The percentage of the free and in use cache size.
Host I/O count – The number of host reads and writes.
Hit rate – The percentage of I/Os completed from cache.
Average I/O bandwidth – The number of bytes, MBs, and GBs written into the VD and read from the VD.
Average host I/O latency – The average time taken to complete an I/O request.
Hit count – The number of I/Os completed from cache.
Miss count – The number of I/Os that were not found on cache and retrieved from the disk.
Other cache statistics – The number of total cache windows, dirty, and non-dirty cache windows.
Host I/Os – The number of I/Os completed by firmware and I/Os coming from host.
Disk I/Os – The number of I/Os completed by firmware and directed to disk.
VD statistics – Information per VD.