Hi all,

We are looking at tuning SIZE_DATA_BUFFERS and NUMBER_DATA_BUFFERS to keep our
LTO{2,3} drives streaming, however, an interesting question has come up within
our storage group.

Since we interleave blocks from various hosts (grouped by "windows", "unix",
"Exchange", "Oracle", "Sharepoint", etc etc) and the block size will potentially
differ when we implement the "SIZE_DATA_BUFFERS" tuning parameter, will this
cause issues when it comes to doing restores (reading the tapes) ? i.e. some
blocks on the tape will be 64KB and other blocks will be 256KB.

What are the implications of the aforementioned and is it bad practice ? And is
there and authoritative method to deal with mixed block sizes written to tape ?

 -aW


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