Re: To RAW partition or not

In article <2dg1gt$1a9_at_mailhost.interaccess.com>, Francis Wang <wangf_at_interaccess.com> wrote:
>
>I'm in the process of building a multi-giga byte database. Some of
>the tablespaces will be as large as 6 giga bytes. My initial instinct
>is to use raw partition for various performance reasons. I also have
>this basic distrust about Unix file systems when it comes to managing
>large critical data. However, prelimanary benchmark indicated that
>the system is primarily CPU bound (we did the benchmark on a
>single CPU RS6000 machine using Unix file system). Given this fact
>the system support group have argued heavily against using raw
>partition (because of maintanence head-ache). Does anyone have any
>insigt into this? Is the Unix filesystem more robust these days?
>Thanks in advance for any contribution.
>

On AIX you should use normal AIX files, you'll never get really RAW access on AIX due to all the nice flexible filesystem stuff. Anyway the AIX filesystem is one of the most stable I've seen, I have powered off AIX boxes in action and never see a corrupt disksystem after booting again.

Just my 2 cents...

Erik E. Graversen
Bellevue WA. USA Received on Tue Nov 30 1993 - 20:43:51 CET