[Ham-Computers] RE: To RAID or not to RAID, that is the question

[WA5CAB at cs.com]

Aaron didn't comment on your statement about a system being limited to 4 EIDE 
drives.  You don't have any apparent need to go in this direction but the 
number of EIDE drives, like the number of SCSI or SATA drives is limited by the 
number and type of controllers.  Our main box here has 6 EIDE (two pair of RAID 
1 and two standalone) and a CDRW and a DVDRW drive.  

In a message dated 7/20/2006 4:49:16 PM Central Daylight Time, 
aaron.hsu at nbcuni.com writes: 
> 2.  Are the SATA drives "independent" from the EIDE (CD ROM) drives from
> a support standpoint?  I know that in a typical EIDE set-up you can only
> have 4 drives, 2 master and two secondary.  Does this still apply with
> modern technology like SATA?
> 
> >>>My reply:
> SATA drives are independant with dedicated 1.5Gbps (or 3.0Gbps) data
> channels.  They eventually link to a SATA host controller so any
> bandwidth limitation will generally be at the host controller or the
> drive.  Most drives today still can't max out the 1.5Gbps rate of SATA,
> so the drives themselves are the limiting factor.
> 

Robert Downs - Houston
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