topic Are LUN serials kept in separate location from LUN itself? in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/Are-LUN-serials-kept-in-separate-location-from-LUN-itself/m-p/29004#M6735 <HTML><HEAD></HEAD><BODY><P>I noticed the following in Block Management Guide (Mapping read-only LUNs to hosts at SnapMirror destinations):</P><PRE __jive_macro_name="quote" class="jive_text_macro jive_macro_quote" modifiedtitle="true"><P>The destination LUN is also assigned a new serial number.</P></PRE><P>I always thought that LUN serial is LUN property kept together with LUN itself. But then how can it be changed on fundamentally read-only destination? Or is it kept in some external global location?</P></BODY></HTML> Thu, 05 Jun 2025 06:24:50 GMT aborzenkov 2025-06-05T06:24:50Z Are LUN serials kept in separate location from LUN itself? https://community.netapp.com/t5/ONTAP-Discussions/Are-LUN-serials-kept-in-separate-location-from-LUN-itself/m-p/29004#M6735 <HTML><HEAD></HEAD><BODY><P>I noticed the following in Block Management Guide (Mapping read-only LUNs to hosts at SnapMirror destinations):</P><PRE __jive_macro_name="quote" class="jive_text_macro jive_macro_quote" modifiedtitle="true"><P>The destination LUN is also assigned a new serial number.</P></PRE><P>I always thought that LUN serial is LUN property kept together with LUN itself. But then how can it be changed on fundamentally read-only destination? Or is it kept in some external global location?</P></BODY></HTML> Thu, 05 Jun 2025 06:24:50 GMT https://community.netapp.com/t5/ONTAP-Discussions/Are-LUN-serials-kept-in-separate-location-from-LUN-itself/m-p/29004#M6735 aborzenkov 2025-06-05T06:24:50Z Re: Are LUN serials kept in separate location from LUN itself? https://community.netapp.com/t5/ONTAP-Discussions/Are-LUN-serials-kept-in-separate-location-from-LUN-itself/m-p/29008#M6738 <HTML><HEAD></HEAD><BODY><P>After head swaps (sometimes) I have seen them change too so we check after every head swap now.</P></BODY></HTML> Sat, 16 Jun 2012 21:26:09 GMT https://community.netapp.com/t5/ONTAP-Discussions/Are-LUN-serials-kept-in-separate-location-from-LUN-itself/m-p/29008#M6738 scottgelb 2012-06-16T21:26:09Z