Hello All, I have a XCP pool with four hosts running close 50 virtual machines. I am using solaris 11 as the back end storage provider with the comstar service as the iscsi server. I am using the vdi-to-lun approach, where I create a new lun for each vdi. We are running into issues where one or two of the the vm servers will report the error "VDI not available" after creating a new vdi and attaching it to a new VM. I have been able to figure out that i need to run iscsiadm -m node -R and xe sr-scan uuid=<uuid of sr> this works 80% of the time. However I sometimes get it to the point where two hosts will report this issue and no matter what, the vm will not start on these systems. However, i can start it without an issue on the pool master. This could be because I use these two machines the most out of the pool. I have tried the above commands as well as xe-toolstack-restart to no avail. In order for everything to operate properly, I have to reboot the two machines, and then everything runs as normal. One use case could be the fact that it seems like this problem occurs more after I remove a vm from the storage array and I create a new one with the same Lun id as the one that was destroyed. Do I need to do vdi forget on every single vdi before removing it from the SAN? I saw this forum post that is a similar issue, however not the same way of generating the issue. http://lists.xensource.com/archives/html/xen-api/2011-02/msg00065.html Thanks, Greg _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users