Strategies after buying new hard drive

[Lennart Sorensen]

On Thu, Dec 09, 2004 at 05:28:26PM +1100, Andrew Cowie wrote:
[snip]
> [A more recent example, from the Oracle database world, is to dedicate
> several spindles (especially striped RAID 0) just for the REDO logs -
> they *have* to be written physically to disk before Oracle will report a
> transaction committed; how long it takes for the official data blocks to
> migrate from cache down to permanent storage is less relevant, but one
> generally wants the redo logs to be written as blazingly fast as
> possible; having other disk activity taking place on a device gets int
> the way of that and is to be avoided]

Oracle with logs on a raid0?  Sounds dangerous to the data.

[snip]
> So, if you have a 4 GB drive and some spanky new drive, then one idea
> you might consider is putting swap, /tmp, on the 4 GB, and have the more
> bulky occasional stuff on the other disk. It all depends on what you're
> trying to do with this system.

And how slow would that make /tmp and swap?  4GB drives are terribly
slow by todays drive speeds.

Lennart Sorensen
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