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12.2. Using PVFS

To make effective use of PVFS, you need to understand how PVFS distributes files across the cluster. PVFS uses a simple striping scheme with three striping parameters.


base

The cluster node where the file starts, given as an index where the first I/O server is 0. Typically, this defaults to 0.


pcount

The number of I/O servers among which the file is partitioned. Typically, this defaults to the total number of I/O servers.


ssize

The size of each strip, i.e., contiguous blocks of data. Typically, this defaults to 64 KB.


  

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