62 lines
2.8 KiB
Plaintext
62 lines
2.8 KiB
Plaintext
Installing a DPT Controller
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with User Definable Parameters
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1. Disable the BE3011 by removing jumper Y7 as it will not be
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used.
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2. Format the disk using the DPT Format Utility or, if previously
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formatted with the DPT Utility, Calculate Best Drive
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Parameters.
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3. Select the operating system. Hit F10 to calculate the Best
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Configuration Parameter. Write this parameter down.
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4. Enter the setup mode. Select disk type 48 or 49 (user
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definable parameters). Enter the Best Configuration Parameters
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that were written down earlier. You may need to enter
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additional fields of information such as Landing Zone, Write
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PreComp, Head Switch Time, etc. These values can be found in
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your hard disk manual or call DPT Technical Support for
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assistance.
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5. Save your setup mode, and reboot the system from the floppy
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with the operating system you will be installing. Continue
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with standard partitioning and high level formatting.
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User Definable Parameters are only used when your operating system
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is BIOS dependant (see BE3011 requirements for BIOS dependant OS's)
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and your controller is running in emulation mode. If you are using
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a DPT SmartDriver (SW-UNIX, SW-NOV, SmartROM, etc.) UDP's are not
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necessary.
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** NOTE **
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Other BIOS notes:
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1. User Definable Parameters will not work properly under Novell
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Netware. The error message "ABEND - INVALID ROM BIOS" appears
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when entering CompSurf or NETGEN. This anomaly occurs with ALL
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USER DEFINABLES REGARDLESS OF BIOS MANUFACTURER on any
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controller card, not just DPT.
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2. AMI BIOS dated 155-030389-K8 has problems running with
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ConCurrent DOS. These problems include:
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a. FAT gets blown away during REINDEX.
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b. CHKDSK reports FAT errors.
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c. Hangs intermittantly.
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AMI BIOS dated 155-121589-K8 is pretty solid and seems to work
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fine with CCDOS. This is the release date we recommend.
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3. AMI BIOS dated 155-022190-K8 may have unnecessary overhead when
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performing seeks. Normally, the DPT controller provides about
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.3ms of seek time (measured by CORETEST, available on this
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BBS). With this release of AMI BIOS, the seek time is about
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3.0ms. After consulting with AMI Technical Support, it was
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brought to our attention that this BIOS has a routine built
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into it that calculates the position of the head and cylinder
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that is currently being accessed on the hard disk. This was
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produced for the Everex Step 33 machine which displays that
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value on an LCD screen on the front of the case. The
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technician explained that this calculation may cause a higher
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seek time and recommended a different release of BIOS if this
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feature was not necessary.
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