We run GPFS on z/Linux and have been using ECKD devices for disks. We are looking at implementing some new filesystems on FCP LUNS. One of the features of a LUN is we can expand a LUN instead of adding new LUNS, where as with ECKD devices. From what I’ve found searching to see if GPFS filesystem can be expanding to see the expanded LUN, it doesn’t seem that this will work, you have to add new LUNS (or new disks) and then add them to the filesystem. Everything I’ve found is at least 2-3 old (most of it much older), and just want to check that this is still is true before we make finalize our LUN/GPFS procedures.
Robert Reuscher NR5AR
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