topic Re: Deleting Snapshots in vCenter Causes Hit in Cache in Array Performance and Data Protection https://community.hpe.com/t5/array-performance-and-data/deleting-snapshots-in-vcenter-causes-hit-in-cache/m-p/6985234#M837 <HTML><HEAD></HEAD><BODY><P>Tony,</P><P></P><P>Nimble SSD is used for "hot active reads".&nbsp; I am assuming that your snapshots are older and all the data is not accessed all the time.&nbsp; So when we go to remove the VMware snapshots that data is being remove from data not on SSD.&nbsp; It will not affect your performance it just make the numbers look less because the data you are removing is old data and you are not using that data anyways so no effect.</P></BODY></HTML> Wed, 28 Jan 2015 14:48:01 GMT eperez101 2015-01-28T14:48:01Z Deleting Snapshots in vCenter Causes Hit in Cache https://community.hpe.com/t5/array-performance-and-data/deleting-snapshots-in-vcenter-causes-hit-in-cache/m-p/6985232#M835 <HTML><HEAD></HEAD><BODY><P>when I deleting snapshots in vcenter I noticed dip in the cache hit rate. why is that?<IMG __jive_id="2248" alt="Capture.JPG" class="jive-image image-1" src="https://community.hpe.com/legacyfs/online/2248_Capture.JPG" style="height: 123px; width: 620px;" /></P></BODY></HTML> Thu, 15 Jan 2015 00:57:38 GMT https://community.hpe.com/t5/array-performance-and-data/deleting-snapshots-in-vcenter-causes-hit-in-cache/m-p/6985232#M835 vmw9 2015-01-15T00:57:38Z Re: deleting snapshots in vcenter causes hit in cache https://community.hpe.com/t5/array-performance-and-data/deleting-snapshots-in-vcenter-causes-hit-in-cache/m-p/6985233#M836 <HTML><HEAD></HEAD><BODY><P>Thank you for your question.&nbsp; It has been forwarded to the appropriate team, and we are researching it.</P><P><BR />Tom</P></BODY></HTML> Wed, 21 Jan 2015 05:48:47 GMT https://community.hpe.com/t5/array-performance-and-data/deleting-snapshots-in-vcenter-causes-hit-in-cache/m-p/6985233#M836 tkavouras109 2015-01-21T05:48:47Z Re: Deleting Snapshots in vCenter Causes Hit in Cache https://community.hpe.com/t5/array-performance-and-data/deleting-snapshots-in-vcenter-causes-hit-in-cache/m-p/6985234#M837 <HTML><HEAD></HEAD><BODY><P>Tony,</P><P></P><P>Nimble SSD is used for "hot active reads".&nbsp; I am assuming that your snapshots are older and all the data is not accessed all the time.&nbsp; So when we go to remove the VMware snapshots that data is being remove from data not on SSD.&nbsp; It will not affect your performance it just make the numbers look less because the data you are removing is old data and you are not using that data anyways so no effect.</P></BODY></HTML> Wed, 28 Jan 2015 14:48:01 GMT https://community.hpe.com/t5/array-performance-and-data/deleting-snapshots-in-vcenter-causes-hit-in-cache/m-p/6985234#M837 eperez101 2015-01-28T14:48:01Z