Tekram Technology DC-820B - Manual (Page 19)

19
EISA Fast SCSI Caching Adapter
SCSI ID 7. These scanning rules apply to an environment with multiple
adapters or devices.
DMA Channel Definition: DMA 5 - default. This option is a pseudo-
function for Adaptec compatibility. Since some software packages do require
a DMA channel, there are four channels available: DMA 5/6/7/0. If you need
to choose the DMA channel be sure that there is no conflict with other
adapters.
1.6.2 DC-820B Adapter Firmware Options
This field allows you to select the Cache line size, Cache DRAM test, Host
Adapter SCSI ID, DOS 5 Support, and Power ON delay for SCSI devices.
Cache line size: 16KB/8KB/4KB. This option allows you to change the size,
in kilobytes, of cache lines. Depending on total cache memory size installed,
you may wish to experiment with the different values to obtain optimum
performance. The table below provides some suggested cache line sizes for
different operating systems and installed cache memory sizes.