[olug] Raid and or Journaling

[George Neill]

!>Funny but true Linux Software Raid story:  I made some estimates for how
!>long it would take a customer to move a large amount of data onto their
!>system.  I made my estimates based on a quite similar system that I had
!>handy to test with.  The chief difference between the two systems was that
!>the customer systems had 130GB of disk space spread over 5 Ultra-160 SCSI
!>drives connected to a DPT hardware raid controller.  My test
!>system had had
!>160 GB of disk space apread over 2 Maxtor IDE drives and 2.2
!>kernel software
!>raid-0.  My estimates proved quite wrong for the customer because my
!>Maxtor-IDE/software-raid system had 20% faster I/O than the
!>160-SCSI/hardware-RAID solution . . .

Funny because of a horribly configured 5xU160's/controller/disk/machine ?
Why do you say these hw configs are similar ?  How was the data transferred
?

Just curious,

George.


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