Task:
to get my ibm ultrastar 18es lvd drives to be recognised with 80MB/s
interface speeds. previously using the ncr53c8xx driver using the default
settings the drives were recognised only as fast-20 40MB/s. i initially
tried the driver off the tekram ftp site, applied the patch to add the
lines to the makefiles in the /drivers/scsi subdirectory in the
linux-2.2.13 kernel source and moved the appropriate .h and .c files to
the /drivers/scsi subdirectory. i got a kernel panic when i tried to boot
off this kernel. the following configuration worked on this hardware. this
was all due to the help of one Mark Schaefer. Thanks Mark.
Hardware:
Tyan 1832DL
2x Intel Pentium III 550
2x Corsair 128 MB DIMMs
ATI Rage 128 32MB AGP video
Intel Etherexpress Pro 100 Management PCI ethernet
Soundblaster 16 ISA Sound card
Tekram DC-390U2W SCSI card controlling
2x IBM Ultrastar 18ES LVD 9.1 GB drives at ID 0,1
Distribution:
Redhat 6.1
Kernel 2.2.13
compiled in sym53c8xx driver with default settings apart from SYNC which
was set to 40.
compiling this kernel i was able to get 80MB/s interface recognised.
Ali Asad Lotia
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