More work done, I tested out Winstone96 between the Samsung and Connor drive on the AVA-2825 controller.
Score was 43.5 to Samsung and 37.5 to Connor. Time to execute the whole bench took 31min 42sec on the Connor and 28min 13sec on the Samsung. I'm not sure WinStone is such a great benchmark for disk performance. It does play a part, but it's more centered around memory, graphics and CPU power.
I tried to switch back to the DC4030VL-2 IDE cache controller, but since I don't have the LBA BIOS for it, and it was never available online it will take me a bit more time to complete. When I installed Win95 on the Samsung drive some of the installation/boot files moved to sectors outside the 504MB limit on the 2GB partition. This means that unless I format the drive I can't boot from it with the DC4030VL-2. I don't want to do that, so instead I'll take another drive and setup Win95 on it within a 504MB partition and when it comes to the benching I'll just connect the Samsung as the slave drive.
I still don't know when the Buslogic cache controller arrives in the mail, that card do have LBA support.
If anyone have a DC4030VL (of any variation) with the LBA BIOS upgrade, please make a BIOS dump and make it public!
feipoa wrote:I am looking forward to your results with a modern SCSI drive on VLB vs. modern IDE on VLB.
I have been wondering if using an Ultra160 SCSI drive on my AHA-2842A would have any benefit over a generic IDE VLB controller with modern ATA-133 drive.
I don't have a conversion from 68pin to 50pin available, and the ones on Ebay atm is quite expensive. I've ordered the 80pin to 50pin converter though, crossing fingers it'll work. The fastest SCSI drive with 50pin that I have is a 2000's 9GB IBM Deskstar. I do have some 15k RPM Ultra320 and Ultra160 drives.
I made a mistake benching the SCSI drive earlier. AVA-2825 (with SCSI and EIDE) is PIO SCSI, not busmastering like the AHA-2842. Luckily I have that controller as well, so I'll swap it out for further benchmarking. Beside that I think the AVA-2825 is one very sweet controller, EIDE w/ ATAPI, SCSI and Floppy all in one VLB card.