 Now i wonder if i slice from two or three arrays and build a meta LUN from that, do i get much better performance or are MetaLUNs only good to build big LUNs? How is the data distributed of the meta members? Oliver,  I understand you mean to say creating slices from two or three RAID Groups (Not arrays as you mentioned in your post) - MetaLUNs can not be created using multiple arrays - it is on the same array. If you are choosing Striped MetaLUN - it is not only for having bigger size but also for better performance by virtue of striping across more spindles. There are few considerations though - the document suggested by "Aran" ('White Paper EMC CLARiiON MetaLUNs - A Detailed Review")  will provide you all the details and guidelines.  Also, you may refer to the "EMC CLARiiON Best Practices for Fiber Channel Storage" - for appropriate version of the Flare code you are running. You may find this document in the Powerlink or in the Support Forum Documents section  - [URL]  Thanks,Sandip  Message was edited by: Sandip Nanda - Sorry Oliver for the typo.
Hello,  normally i create new LUNs by slicing off an RAID5-Array build by 5 disks. Now i wonder if i slice from two or three arrays and build a meta LUN from that, do i get much better performance or are MetaLUNs only good to build big LUNs? How is the data distributed of the meta members?
Use MetaLUNs to get more thruput?