> From: Acácio Furtado Costa [mailto:[EMAIL PROTECTED]
> In the specification of the disks I have doubts because the
> new disks SATA has great performance and speed and with cost
> comparative minor to the SCSI Disks.
>
> Considering applications WEB, where the >WAR files are loaded
> in memory and having enough memory (2 Gbytes) so that there
> is not use of virtual memory (windows XP), would there be
> some advantage to use disks SCSI? or can we wait for the
> same performance considering disks sata 7200 rpm against
> disks scsi of 7200 rpm?
>
> Could anybody explain to myself this doubts?
You will only really be able to answer this by benchmarking your application
and finding out how much of the time it spends accessing the disk.
SCSI disks and controllers typically have two other advantages over SATA disks
and controllers: faster average seek times, and more write cache. However, if
the performance under SATA is "good enough", then you will not want to spend
the extra for SCSI.
I support a number of live applications deployed on servers using mirrored SATA
disks, as they are "good enough" for the clients.
- Peter
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