[comp.sys.atari.st] Berkeley SCSI interface, mix of models

"P.J.M._Verbruggen.ven1RX"@XEROX.COM (04/11/88)

We have  20 Berkeley systems running (without any difficulties) here this part
of Holland and one of the SCSI interface boards is  model  ACB4010  i.s.o. model
ACB4000. We contacted Adaptec but they could not give us an answer with respect
to any difference between the mentioned models. I know that a model  ACB4070
exists that incorporates RLL.Any pointers ?

The following is a benchmark (ref: 68000-er magazine April 88) using the
Berkeley boards:

Harddisk used : Olivetti  XM 5210/2 (4 partitionings  3-3-2-2)


Formatted with HDX using AHDI driver (Atari software)
Test1 :   6.740 sec
Test2 : 88.315 sec
Test3 :   6.855 sec
Test4 :   2.245 sec

Formatted with BMSINIT  using INSTALL driver (Berkeley software)
Test1 :   6.690 sec
Test2 : 88.315 sec
Test3 :   5.325 sec
Test4 :   2.240 sec

Formatted with ICDFMT using ICDBOOT driver (ICD software)
Test1 :   8.355 sec
Test2 : 88.315 sec
Test3 :   9.490 sec
Test4 :   3.160 sec

Test1: read 100 times first 50 sectors on one partitioning as one block
Test2: read 100 times first 50 sectors (each sector)
Test3: open 50 files (test1....test50) read 1 sector between each file operation
on another partitioning.
Test4: delete all 50 files

-Peter-