Hi Louw,

For a single instance 24GB of RAM should be enough.
For the OS is using SSD a bit nonsence, even SATA is enough, so don't
spend to much on that.

But if you want speed, look at the SSD cards of Fusion-IO
(fusionio.com) these cards are build for enterprise usage and have
redundancy on the card, so you don't need to build a raid with it.
On a single card, you can put the database and logfiles SAVE, with
lightning speed and still not very expensive.

Regards,
Maurice van 't Loo
ITSM Freelancer (available)


2010/11/17 Pretorius, Louw <louw AT sun.ac DOT za> <louw AT sun.ac DOT za>:
> Hi all,
>
> I am currently in the process of setting up specifications for our new TSM6.2 
> server.
>
> I started by adding 8 x SSD 50GB disks to hold OS and DB, but because of the 
> high costs was wondering if it's possible to rather buy more RAM and increase 
> the DB2 cache to speed up the database.
>
> Currently I have RAM set at 24GB but its way cheaper doubling the RAM than to 
> buy 8 x SSD's
> Currently I have 8 x SSD vs 6 x SAS 15K
>
> Any ideas?
> Louw Pretorius
>