Re: Veritas Quickio and DB_BLOCK_SIZE

> Hi George,
>
> I wanted to make sure that the information I was
> giving you was as accurate and current as possible.
> This prompted me to have one of my guys to check it
> out in the Veritas Documentation, before I sent out
> the note. The documentation for version 3.3, clearly
> states that the default logical blocksize for Veritas
> is 1024 bytes. Your take about the automatic scale-up
> for very large files may also be true.

Hmmm... I'm running 3.2 and it defintely manifests scaleup. I tried it with various partition sizes, it defaulted to 1k, then scaled to 2k, hit 4k at around 300G (the biggest single volume I had to play with).

>
> Regardless, I think the point I was trying to drive
> home is simple - You need to ensure "equality" of
> db_block_size and the filesystem block size. The
> default value may change across releases and that is
> not something that we have control over or should
> depend on. And I am very glad to hear that your
> environment adheres to that. Good for you!!!

Absolutely. I wasn't intending to contradict your point, just to clarify a particular of it.

Best,

George

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Author: George Schlossnagle
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