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- Sparta PCBoard
- Hard Drive Conference
- PERSTOR Conference
- (201) 729-7056
-
- The following text was prepared by Darwin Collins at my request so
- that you could have some first hand feedback on installation of the
- co-resident driver to allow two Perstor 200 series controllers to
- be installed in the same computer. I have reviewed the procedures
- used and described by Darwin and find them to be succinct, straight
- forward and very clear.
-
- Darwin, my thanks for preparing the text file.
-
-
- Richard Driggers
- Sysop - Sparta PCBoard
- March 12, 1988
-
-
-
-
- Created :03/12/88
-
-
-
- An installers view on what it took to get an XT system to recognize
- Four (4) HardDisk drives using two Perstor PS180 controllers.
-
-
- Equipment:
-
- 2 New Perstor PS180 Controllers
- 2 New Miniscribe 3425 20Meg(MFM) Drives
-
- 1 IBM Turbo XT Clone 640K RAM 150Watt Power Supply (about 2+yrs old)
- 1 AST 2Meg RamPage board
- configured as 1 Meg RAMDrive and 1 Meg Extended RAM
- 2 Seagate ST238 30Meg(RLL) Drives
- 1 Expansion Case with 60watt Power Supply
- (This case cost us $100, but next time we will buy
- a clone XT case and buy a Power Supply for it.
- The reason this case was bought was to move the
- Hot running ST238 drives out of the XT case.)
-
- 2 30Pin Cables (2 Drive Twisted Pair Cables)
- 4 20Pin Cables (one for each drive)
-
- Misc parts: Screws to hold in the HardDrives.
- Manual: The supplied manual that came with the controllers
- Preliminary Documentation for the 4-Drive Device Driver
- Software: OnTrack's DiskManager vr 3.1
- IBM DOS 3.1
-
- Recommendation:
- Our system had two ST238's online for about a year.
- About 6 months ago, we bought an expansion case to move
- the Hot running drives out of the XT case.
- We had 2 Miniscribe 3425 that were in storage because
- normally it is not possible to hook more than 2
- drives up concurrently.
-
- Thus, for us, the Perstor Controllers were perfect !
- We could install the two Miniscribes into the XT case,
- keep the Seagates in their Expansion Case, plug the
- two controllers in, and be running upto 4 Harddrives
- concurrently.
-
- Currently, we can not use a disk cache but we are so happy
- that we can access upto 4 drives, that spring time is fine
- for waiting for the official release of the PS180 device driver.
-
-
- Problems:
- We had bought two controller cards, so had two sets of manuals.
- One of the manuals had blank pages in the essential areas of
- setting the jumpers. So, this could have caused a problem,
- if we had had only one manual that had those blank pages.
- We are running a AST 2Meg Rampage board also in the system.
- We could not get a Disk Cache program from Mace Utilities
- to work. If this was caused by the drivers in the Rampage
- board interfering with the PS180 driver, and resulting in
- the lockups when Mace's disk cache was used, I don't know.
- If Mace's disk cache is not used, the system runs fine.
- If it is used, then the system will lock up sooner or later
- while accessing any of the Harddrives.
-
-
- ==== What we did =====
-
- Before: The XT system had two 30Meg ST238's hooked up to
- a Adaptec 2070A that provided 60Megs of storage.
-
- step 1 - Hooked up a Tape Backup mechanism to backup the data
- off of the two ST238's.
- (Took a long time using an Irwin 10Meg Tape Drive)
- - Powered down the XT system
- - Disconnected the cables from the Adaptec controller so
- to remove the controller from the system.
- (This controller was hooked upto two ST238s, which were
- housed in an external expansion box.)
- - Picked up 1 Perstor controller card, and accompying manual.
- For our drives) we needed to remove all jumpers from the
- JMP6 block except for the one that was across pins 13 & 14.
- Checked to make sure the jumper was on the JMP4 block.
- Checked to make sure that there was No jumper on the JMP5 block.
- - Inserted this controller card into the XT system and connected
- the Harddrives cables to it. (The connecting of the cables
- is similar as hooking up other types of Harddisk controllers)
- Double checked, to see that the Pin 1 of the ports and the
- Red Edge of the Cables matched.
- step 2 - Stuck a system diskette into the floppy drive and turned On
- the XT system. Before, bootup, a message appeared saying
- that the two Harddrives had not been low-level formatted yet.
- (A verbal sentence, instead of the 1701 that other's display.)
- - After bootup, we removed system disk, and inserted the PS180
- utility diskette that came with the controller cards.
- - Typed PS2FMT , which is a program that will low level
- format the drives. You would need to use this program
- once for each drive, so which is twice.
- - We used an interleave of 4, and got a Data Transfer rate of
- about 200 or so. The program was very informative and we
- had no problem in telling it to low-level the drive.
- Repeated the procedure to low-level format the other drive.
- - Loaded OnTrack's Disk Manager into the system, and accessed
- it by DM/M to partition and high-level format both drives
- with each a 40Meg partition. Didn't have any problems with
- using Disk Manager to partition the drives.
- step 3 - After setting up both drives with their 40meg partitions,
- and exiting DM, we powered down the system.
- - We disconnected the data cables that ran from the two ST238s
- to the controller. Disconnected the power plug that ran to
- the external expansion case that housed the two ST238s.
- - Installed the two Miniscribe 3425's into the XT system's
- 2 vacant half-height slots.
- - Connected the two-drive cables from the two Miniscribes to
- the PS180 controller.
- - Repeated the same procedure (Steps 2 to 3) that we had used
- to low-level format the two ST238s.
- ( Except for that we partitioned the first Drive (0), has
- a 20Meg DOS (Logical C:) and a 20Meg (Logical D:). )
-
- - Powered down the system. Left the Data cables hooked upto
- the two Miniscribes.
- - Took the second controller out of the box.
- For us, we took all jumpers off the JMP6 block except for
- the one that was across pins 13 & 14.
- - Took the jumper off of JMP4 block and put it on the JMP5
- block. (again, result: No jumper on JMP4, Yes jumper on JMP5)
- (Result of this is dis-enabling the BIOS, and selecting
- a different Port address.)
- - Inserted the card into the system, and connectted the data
- cables that ran from the two ST238 Harddrives.
- Double checked, to see that the Pin 1 of the ports and the
- Red Edge of the Cables matched. Plugged the power for the
- expansion case back into the switch box.
- - Powered up the system, with a system diskette.
- After bootup, we changed the config.sys, to reflect this:
- DEVICE=DMDRVR.BIN
- DEVICE=PS200IO.BIN
- DEVICE=ANSI.SYS
- FILES=20
- BUFFERS=14
- ...etc.
- Copied and then verified that the Device Drivers were
- available on the system diskette.
- - Rebooted the system. Upon booting up, the screen will
- display the the Perstor Device Driver has found and
- recognized the additional 2 drives.
- - Copied all device drivers and the config.sys over to the
- HardDisk Drive C: And did other checks to make sure
- that all drives (and logical drives) were being accessed
- normally and correctly.
- - It is recommended that before you restore your data, to
- run a Harddisk analyzer to check for any bad sectors.
- (Just to play it safe)
- - Store the booting system disk for backup purposes.
- (for a time, that you accidently wipe out your root
- directory, you would have a bootable system diskette
- so that you can easily restore your device drivers.)
-
- - That was it.
- We rebooted the system up, and accessed all FOUR Harddisks
- for a total of 160 Megabytes of data.
-
- Before with a maximum of 2 Drives :
- 2 drives x 30meg(RLL) = 60 Megs
-
- After with 4 Drives and using ARLL :
- 4 drives x 40Meg(ARLL) = 160 Megs
-
-
- Summary: It took us about 13 hours from start to finish.
- I estimate that by far the majority of the time was spent
- backing up 60Megs of Data from the (then) two 30meg drives.
-
- Time was also spent waiting for the system to format the
- 4 Harddrives and partition them.
- We had no problems with understanding the documentation.
-
- ------------------------------------------------------------------------
- If you have any further questions or problems that we can help you
- with, we can be located at:
- Ken Bachman Sysop of Silicon City RBBS data (214) 641-2537
- Darwin Collins Irving, Texas Home (214) 252-5681
- Author of a few (worthless?) Doorgames and this text
- --- the end ---
-