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<blockquote data-quote="IronWolf" data-source="post: 1840558" data-attributes="member: 21076">Seagate makes 15k SCSI drives with 3.6ms seek time.&nbsp; So that would be up to +4ms gain.&nbsp; Think of how many disk hits a database driven website may have in a given hour.&nbsp; Each ms gained from a fast seek on the HD is a ms second that can be spent doing something else.Also, remember this isn't all about seek times.&nbsp; That is just *one* of the SCSI benefits.&nbsp; By going SCSI you also reduce load on the CPU processor by offloading some of the logic to the SCSI adapter.&nbsp; In addition with SCSI, the processor can request multiple blocks of data from the drive, go on to do other things while the SCSI adapter handles the queue.From some of the orginal posts and what was in the news announcement yesterday, EnWorld is suffering from high CPU usage and wants to get a server that can last two to three years while sustaining growth of the website.&nbsp; SCSI drives can help with both, reduce processor usage by freeing the processor up for other requests while the SCSI controller takes on more work and allows for performance to remain high as the site grows over the next two to three years.If you are building gaming machines, single high speed processors and SATA drive are great options.&nbsp; If you are building performance driven servers with two to three year lifespans, dual processors (or at least the option to add a second processor), a lot of quality RAM and a distributed array of&nbsp; high speed SCSI disks is the way to go.Again, the EnWorld folks are doing a great job and it is much easier for me to comment from the outside looking in....</blockquote>

[QUOTE="IronWolf, post: 1840558, member: 21076"] Seagate makes 15k SCSI drives with 3.6ms seek time. So that would be up to +4ms gain. Think of how many disk hits a database driven website may have in a given hour. Each ms gained from a fast seek on the HD is a ms second that can be spent doing something else. Also, remember this isn't all about seek times. That is just *one* of the SCSI benefits. By going SCSI you also reduce load on the CPU processor by offloading some of the logic to the SCSI adapter. In addition with SCSI, the processor can request multiple blocks of data from the drive, go on to do other things while the SCSI adapter handles the queue. From some of the orginal posts and what was in the news announcement yesterday, EnWorld is suffering from high CPU usage and wants to get a server that can last two to three years while sustaining growth of the website. SCSI drives can help with both, reduce processor usage by freeing the processor up for other requests while the SCSI controller takes on more work and allows for performance to remain high as the site grows over the next two to three years. If you are building gaming machines, single high speed processors and SATA drive are great options. If you are building performance driven servers with two to three year lifespans, dual processors (or at least the option to add a second processor), a lot of quality RAM and a distributed array of high speed SCSI disks is the way to go. Again, the EnWorld folks are doing a great job and it is much easier for me to comment from the outside looking in.... [/QUOTE]

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