vanderen@godfre.UUCP (Richard H. Van Deren II) (02/11/88)
Richard is dreaming again. I want to upgrade my disk. I heard about the Seagate ST01 scsi host converter. On a IBM PC it is a card that converts ST506 commands to scsi. So, why not on the unix-pc? The WD1010 disk controller is ST506 right? So,,, why not remove the WD1010 connect the input pins "somehow" to the ST01? Are the input pins to the WD1010 a PC BUS? Well then, what kind of bus are they? Is this idea too silly? I work as an application programmer and know little about hardware, however it seems that I have all the building blocks to a solution. (Except where to put the card and how to get power.) Why do I want to go scsi? Seagate is coming out with a new drive in March. Here are the specs ST296N 1/2 height ------- or stack three with at 3B1 top. I like the idea of buying them one at a time. or stack 8 full height ST4192N's in a box outside and get 1.348 gigabytes on a unix-pc? FORMATTED CAPACITY 1 3 Megabytes 85 255 Sectors per Drive 166,054 Sectors per Cylinder 203 Bytes per Cylinder 103,936 Sectors per Track 34 Bytes per Track 17,408 Bytes per Sector 512 PHYSICAL ORGANIZATION Tracks 4,908 Cylinder 818 Read/Write Heads 6 Disks 3 FUNCTIONAL SPECIFICATIONS Rotational Speed 3,600 RPM Recording Method RLL (2,7) Recording Density (BPI) 19,869 Flux Density (FCI) 13,246 Track Density (TPI) 777 Interface SCSI I/O Data Trans.Rate(Mbits/sec.) 12 Int.Data Trans.Rate(Mbits/sec.) 10 ACCESS TIME (msec.) Track-to-Track 8 Average 28 Full-Stroke 70 Average Latency 8 POWER REQUIREMENTS +12 VDC (amps typ.) .5 (amps max.) 2 +5 VDC (amps typ.) 1.4 Power (watts typ.) 13 -- Richard H. Van Deren II, 235 West 56th Street, #11J New York City, NY 10019 HOME: (212) 246-8199 WORK: (212) 830-3170 godfre (212) 246-8281 UUCP: {attmail,uunet,mtune,swlabs,quincy}!godfre!vanderen Telex: 150246380 (GODFRE/VANDEREN) , CALL ME: 3544
vanderen@godfre.UUCP (Richard H. Van Deren II) (02/11/88)
Richard is dreaming again. I want to upgrade my disk. I heard about the Seagate ST01 scsi host converter. On a IBM PC it is a card that converts ST506 commands to scsi. So, why not on the unix-pc? The WD1010 disk controller is ST506 right? So,,, why not remove the WD1010 connect the input pins "somehow" to the ST01? Are the input pins to the WD1010 a PC BUS? Well then, what kind of bus are they? Is this idea too silly? I work as an application programmer and know little about hardware, however it seems that I have all the building blocks to a solution. (Except where to put the card and how to get power.) Why do I want to go scsi? Seagate is coming out with a new drive in March. Here are the specs ST296N 1/2 height ------- or stack three with at 3B1 top. I like the idea of buying them one at a time. or stack 8 full height ST4192N's in a box outside and get 1.348 gigabytes on a unix-pc? FORMATTED CAPACITY 1 3 Megabytes 85 255 Sectors per Drive 166,054 Sectors per Cylinder 203 Bytes per Cylinder 103,936 Sectors per Track 34 Bytes per Track 17,408 Bytes per Sector 512 PHYSICAL ORGANIZATION Tracks 4,908 Cylinder 818 Read/Write Heads 6 Disks 3 FUNCTIONAL SPECIFICATIONS Rotational Speed 3,600 RPM Recording Method RLL (2,7) Recording Density (BPI) 19,869 Flux Density (FCI) 13,246 Track Density (TPI) 777 Interface SCSI I/O Data Trans.Rate(Mbits/sec.) 12 Int.Data Trans.Rate(Mbits/sec.) 10 ACCESS TIME (msec.) Track-to-Track 8 Average 28 Full-Stroke 70 Average Latency 8 POWER REQUIREMENTS +12 VDC (amps typ.) .5 (amps max.) 2 +5 VDC (amps typ.) 1.4 Power (watts typ.) 13 -- Richard H. Van Deren II, 235 West 56th Street, #11J New York City, NY 10019 HOME: (212) 246-8199 WORK: (212) 830-3170 godfre (212) 246-8281 UUCP: {attmail,uunet,mtune,swlabs,quincy}!godfre!vanderen Telex: 150246380 (GODFRE/VANDEREN) , CALL ME: 3544