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[Linux-cluster] GFS equivalent of ext3's block group size



I'm trying to apply some of the ext2/3 based logic to optimizing GFS on a RAID array. The idea is to try to make sure block groups all start on different disks, since beginning of each block group sees most access. If they are all on one disk, this disk becomes the bottleneck.

So my question is, what is the equivalent in GFS? I'm guessing at resource group, but this only seems adjustable in 1MB increments, which is a bit large. Is there a way to adjust this with finer granularity?


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