keithl wrote:
The IMC may provide a cleaner view, an Active VLUN is a path from the volume out through each controller to any HBA port it is presented to.
1 vlun = a volume to host HBA port mapping per 3par controller port.
So if you have 1 volume that is exported through both controllers to a single host and it goes to 2 hba ports on the host you will have 2 active VLUNS for that volume.
From your example I assume you have each fibre switch going to both controllers and would zone:
Switch 1 Zone
Host HBA Port A > 7200 Node 0:1:1 and 7200 Node 1:1:1
Switch 2 Zone
Host HBA Port B > 7200 Node 0:1:2 and 7200 Node 1:1:2
That would result in 4 paths and for every volume exported you should have 4 active VLUNs
If you are seeing more that that then you might have a zoning and/or export issue.
By going throug the CLI everyhing looks OK, it show four paths as expected to the VLUN:
Example
cli% showvlun -host xxx-esx03
Active VLUNs
Lun VVName HostName -Host_WWN/iSCSI_Name- Port Type Status ID
0 FC_R10_VOL01 xxx-esx03 5001438004C200FC 0:1:1 host set active 0
0 FC_R10_VOL01 xxx-esx03 5001438004C200FE 0:1:2 host set active 0
0 FC_R10_VOL01 xxx-esx03 5001438004C200FC 1:1:1 host set active 0
0 FC_R10_VOL01 xxx-esx03 5001438004C200FE 1:1:2 host set active 0
-------------------------------------------------------------------------
4 total
VLUN Templates
Lun VVName HostName -Host_WWN/iSCSI_Name- Port Type
0 FC_R10_VOL01 set:ESXhoster ---------------- --- host set
------------------------------------------------------------------
1 total
showvlun -host xxx-esx03 -pathsum
------ Ports ------- ----- Paths -----
Lun VVname Host Host Inactive InServ Available Healthy Multipathing FailedPathPolicy MonIntervalSecs HostDevName
0 FC_R10_VOL01 xxx-esx03 2 0 4 4 0 Unknown Unknown 0 --
---------------------------------------------------------------------------------------------------------------------------
1
But the attached screenshot fetched in the IMC shows 26??