Recently we upgraded from ESXi 5.0 to 5.1 Update 2 and we got following alert that’s when we realized that we need to configure coredump server
Researching later we found that it cannot be located on an iSCSI LUN accessed through the software iSCSI or dependent hardware iSCSI adapter and we were using Boot from SAN using Software iSCSI
Following KB Article disk recommendations for the disk/lun sizes where we understood it was not the default behavior in 5.0 where as it got changed 5.1
Now we will need to configure Network Core Dump Collector which is part of the package for vCenter 5.1 Update 2 and following KB Article details around the same
I gather more information through this article, so please keep me informed of any update in this regard. For more relevant articles click on: how to recover deleted datacustom filedisk image softwareretrieve deleted files windowsdiskdiggerdiskdigger prousb drivedownload diskdigger