I would suggest have the service people do the upgrade from 29 to 30 - you want to check for the firmware on the disks, check if you're using Pools or using FAST cache - there are some gotcha's that the service folks are aware of for this upgrade. Normally you can use USM without issues, but from 29 to 30 might be tricky.  glen
A couple of EMC CE's were at my shop and they were telling me that I can confidently upgrade my SAN's flare from 4.29 to 4.30 myself using the Unisphere Service Manager.  Normally we would have a CE onsite doing this.  Has anyone done their own upgrade and do you recommend I try this myself?  Is it safe?  Is there any "gotch'as" i need to know about?                           Thanks.
Unisphere Service Manager - Flare Upgrade 4.29 to 4.30