[rescue] Total corporate madness (

Frank Van Damme frank.vandamme at student.kuleuven.ac.be
Mon Aug 4 12:16:13 CDT 2003


On Monday 04 August 2003 19:10, Patrick Giagnocavo +1.717.201.3366 wrote:
> Actually it is an improvement.  This means you get the full SATA
> bandwidth to each drive; and the CDROM will no longer slow down the
> disk transfers.  Having 4 or more controllers on board in each system
> means you can instantly do 3-drive software RAID.

True. If I'm not mistaken, scsi allows 256 commands to be sent to the drive at
once, IDE only one. Moreover, the controller has to wait for a reply to come
back in order to sent the next command, even if it is for the other disk of
the 2. So place 2 disks on the same cable and they start fighting for
bandwidth.

--
Frank Van Damme    http://www.openstandaarden.be
~~~~~~~~~~~~~~~    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Je pense, donc je suis breveti."



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