Hello fellow ADSMers, I'd like to get some feedback on anyone's experience with setting up ProtecTier using a V7000 for storage. I'm setting up a 2 node TS7650G DD5
The V7000 storage was already allocated by a previous admin, using volumes with striped visualization. The most recent Redbook Aug 2014 says to use sequential. http://www.redbooks.ibm.com/redbooks/pdfs/sg248025.pdf The ProtecTIER architecture stripes the repository among all file systems and uses all the disks simultaneously. Because of this architecture, you should create the volume to accommodate the full size of each MDisk. Additionally, because of the nature of the ProtecTIER file system architecture and workload, sequential virtualization has better performance than striped virtualization. Before re-starting from scratch, I wanted to get feed back from the field, and any other tips if you have them. Does anyone have any comparison data by chance? Thank you, -Nick
