Fix disk stats with duplicate timestamps
Fix disk stats with duplicate timestamps

ubiquityhosting/rancher_ui,pengjiang80/ui,nrvale0/ui,rancher/ui,westlywright/ui,nrvale0/ui,nrvale0/ui,westlywright/ui,ubiquityhosting/rancher_ui,ubiquityhosting/rancher_ui,vincent99/ui,rancherio/ui,rancherio/ui,vincent99/ui,lvuch/ui,rancher/ui,pengjiang80/ui,rancherio/ui,lvuch/ui,lvuch/ui,westlywright/ui,pengjiang80/ui,vincent99/ui,rancher/ui