Hi All, I could use some help of the experts here :) Please correct me if I'm wrong: I suspect that GPFS filesystem READ performance is better when filesystem is replicated to i.e. two failure groups, where these failure groups are placed on separate RAID controllers. In this case WRITE performance should be worse, since the same data must go to two locations. What about situation where GPFS filesystem has two metadataOnly NSDs which are also replicated? Does metadata READ performance increase in this way as well (and WRITE decreases)?
Best regards, Tomasz Wolski
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