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In article <806tk2$5rn$1_at_nnrp1.deja.com>,
Jim Adams <jsadamsjr_at_my-deja.com> wrote:
> Looking at Sun's Managing Oracle8 on solaris 2.X. It recommends 1 GB
of
> swap for each 256 MB of RAM. We're getting a E4500 with 2 GB of RAM
> installed. Thus I should allocate 8 GB of disk space for the swap?
It
> seems a bit excessive as it takes up almost half of the disks 18.2 GB
of
> storage. Any thoughts on the optimum amount.
>
Sun's recommendation are not unrealistic depending on your
applications. Generally most Unix vendors seem to recommend at least
2X memory with 2X to 4X being considered normal. One of the Oracle
manuals has an example where they discuss the fact a 1G SGA could
consume 1G in memory management pages plus more swap to actually hold
the SGA. I would recommend that you at least allocate 2X. You may not
need this if your load is lite and you have oversized memory, but I
have worked on a sun where the customer set up a swap of only about
256M with 2G memory. If ran for several months then one day it pretty
well locked up. The problem was no swap. Our administrators
reconfigured it for them and the overall performance was much improved.
--
Mark D. Powell -- The only advice that counts is the advice that
you follow so follow your own advice --
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Received on Mon Nov 08 1999 - 15:28:25 CST