My celebration was short lived when my manager declared that while were going to
spend 70K on Hardware, we would not be spending 77K to get the disk
configuration I proposed.
Does anybody know where that term "damagement" came from???? :)
"Steve McClure"
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Please respond to
ORACLE-L
Boy I lost this battle here. The thing was the salesmonger insisted that with
all the caching and multipathing the Hitachi 9200 offered that we needent worry
about putting our production, development, admininstrative, and designer
databases all on a single (5 disk)RAID 5 array. We then had a conference call
with myself, our top IT folks, the sales monger and a Hitachi engineer. I was
very prepared going in, but figured the engineer would still be able to out
"tech" me. 10 minutes later I was surprised to hear that the engineer agreed
with me, that we would get much better performance Striping and Mirroring.
My celebration was short lived when my manager declared that while were going to
spend 70K on Hardware, we would not be spending 77K to get the disk
configuration I proposed. He was essentially selling the sales mongers point of
view rather than mine and the Hitachi engineer. He claimed we would never make
I/O the bottleneck on this system. It didn't take me long to discover some
processes were indeed bottle necking on disk I/O. Go figure all the I/O for the
whole system on a single physical device(array).
That said I JUST recently discovered that our multipathing software(vendor
installed-- not Hitachi) wasn't installed properly, so we really are only using
one pathway for all our I/O. Once we get that installed I am actually afraid I
will be pleasantly surprised at how well it works. I will just have to be
content knowing....as good as it is....it could be better yet.
Steve McClure
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