VFlash performance metrics missing
Hi,
I’m playing with the new vFlash feature in my vSphere 5.5 lab. All seems to be working…but – I’m unable to find the new Performance metrics in vSphere Web client (when looking on “virtual disk” on the VM object).
According to http://www.vladan.fr/vflash-read-cache/ I should have three new metrics called:
FlashCacheIOPs
FlashCacheLatency
FlashCacheThroughput
But they are not there.
Any clues out there?
VMware have released the patch which resolves this problem now.
VMware KB: VMware ESXi 5.5, Patch ESXi550-201505401-BG: Updates esx-base
The vFlash cache metric counters such as FlashCacheIOPs, FlashCacheLatency, and FlashCacheThroughput might not be available when CBT is enabled on a virtual disk. Error messages similar to the following are logged in the stats.log file:
nnnn-nn-nnT06:17:20.200Z [nnnnnnnn error 'Statssvc.vim.PerformanceManager'] CollectVmVdiskStats : Failed to get VFlash Cache stats for vscsi id scsi0:0 for vm 3
nnnn-nn-nnT06:17:40.189Z [nnnnnnnn error 'Statssvc.vim.PerformanceManager'] GetVirtualDiskVFCStats: Failed to get VFlash Cache stat values for vmdk scsi0:0. Exception VFlash Cache filename not found!
nnnn-nn-nnT06:18:20.181Z [nnnnnnnn error 'Statssvc.vim.PerformanceManager'] GetVirtualDiskVFCStats: Failed to get VFlash Cache stat values for vmdk scsi0:0. Exception VFlash Cache filename not found!
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