SDW 6.4.1 with cDOT 8.1.2 issue: possible lun size is depends on whole aggr size rather than vol

chao — Thu, 05 Jun 2025 06:00:30 GMT

Hi Gurus

In my lab, I installed SDW 6.4.1 in VM with cDOT 8.1.2 and vSphere 5.1 , from VM, I use SDW to create a LUN at a VServer of cDOT. I found a issue. see below.

For the volume I plan to place the LUN, the size is about 2GB (of coz, it's thin-provision vol) but For lun size, the maximum accept lun size is the size of whole aggregate rather than volume. is it normal or expected behavior？

I guess the root cause is that the LUN created by SDW is thin-provision LUN. but I did not found where I could select thick or thin when use SDW to create a LUN.

Re: SDW 6.4.1 with cDOT 8.1.2 issue: possible lun size is depends on whole aggr size rather than vol

chao — Tue, 18 Jun 2013 05:11:28 GMT

I found

1) if the volume is thin-provision, the max. acceptable LUN size is depends on aggr size

2) if the volume is thick-provisoon, the max. acceptable LUN size is depends on vol size.

Is it make-sense?

topic SDW 6.4.1 with cDOT 8.1.2 issue: possible lun size is depends on whole aggr size rather than vol in ONTAP Discussions

SDW 6.4.1 with cDOT 8.1.2 issue: possible lun size is depends on whole aggr size rather than vol

Re: SDW 6.4.1 with cDOT 8.1.2 issue: possible lun size is depends on whole aggr size rather than vol