Hey there

right know I am studying for the ITSMv2 Excam and I am reading the book about it. On page 82 there is a chapter about traditional LUNs and thin LUNs.

Traditional thick LUNs are mapped to a traditional RAID Group and expanding those would be a MetaLUN. So far I've no issue with that BUT

beased on the book a Thin LUN resides in a Shared Pool. But from my experience with working on EMC VNX i can create a traditional tick LUN in the pool as well and expand it with capacity out of the pool. If i want to use Thin i can say this is a Thin LUN by klicking "Thin" and allocated 10 TB even if i am using only 2 TB. Am I right? Or am I wrong? Are all LUNs in a pool Thin LUNs even when "Thin" is not ticked? Can i change a LUN in a pool to thin and thick all the time? Are there two meanings of thin in EMC environments?

Thank you for clarification and greetings,