https://community.netapp.com/t5/ONTAP-Hardware/Flash-Cache-System-Read-Latency/m-p/165281#M10725 <P>Dears&nbsp;</P><P>Is the system read latency value of 619ms in the yellow line part normal!?<BR />How is this value calculated?<BR />Thank you<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="擷取.PNG" style="width: 999px;"><img src="https://community.netapp.com/t5/image/serverpage/image-id/11184iEF6914CDEAFC19EA/image-size/large?v=v2&amp;px=999" role="button" title="擷取.PNG" alt="擷取.PNG" /></span></P> Wed, 04 Jun 2025 10:30:13 GMT justinfibe 2025-06-04T10:30:13Z https://community.netapp.com/t5/ONTAP-Hardware/Flash-Cache-System-Read-Latency/m-p/165281#M10725 <P>Dears&nbsp;</P><P>Is the system read latency value of 619ms in the yellow line part normal!?<BR />How is this value calculated?<BR />Thank you<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="擷取.PNG" style="width: 999px;"><img src="https://community.netapp.com/t5/image/serverpage/image-id/11184iEF6914CDEAFC19EA/image-size/large?v=v2&amp;px=999" role="button" title="擷取.PNG" alt="擷取.PNG" /></span></P> Wed, 04 Jun 2025 10:30:13 GMT https://community.netapp.com/t5/ONTAP-Hardware/Flash-Cache-System-Read-Latency/m-p/165281#M10725 justinfibe 2025-06-04T10:30:13Z https://community.netapp.com/t5/ONTAP-Hardware/Flash-Cache-System-Read-Latency/m-p/165329#M10726 <P>Hello Justinfibe,</P><P>&nbsp;</P><P>No, that is not normal. Was there anything else going on with the system during the observed time of high latency, like a storage failover/giveback where the FlashCache has to re-warm its contents? If nothing else was going on then I suggest you open a case with our Support Team to rule out any failing hardware, i.e. failing FlashCache, failing disks, failing shelf modules, etc...</P><P>&nbsp;</P><P>&nbsp;</P><P>Regards,</P><P>&nbsp;</P><P>Team NetApp</P> Thu, 25 Mar 2021 03:51:06 GMT https://community.netapp.com/t5/ONTAP-Hardware/Flash-Cache-System-Read-Latency/m-p/165329#M10726 ttran 2021-03-25T03:51:06Z