HP D7171A - NetServer - LPr Software Install Manual page 8

Tip 12) HPFS386 Drive cache size issue on systems with 4GB RAM
The installation procedure of IBM OS/2 defaults to calculating the disk cache size based on the
amount of memory installed on your system. It appears that this calculation does not work
properly when the system has a 4GB of RAM installed. In this case the disk cache is set to the
lowest value of 256K. Hewlett-Packard reported this issue to IBM. As a workaround you can
edit the file C:\IBM386FS\HPFS386.INI. Locate the line that reads "cachesize=256". This means
that the cache is set to 256K bytes. You can read the text provided below this line to determine
which is the best value to use. Please keep in mind that this parameter will impact your system
performance.
Tip 13) When using HP NetRAID install the driver MRAID.ADD
If you are using a HP NetRAID it is possible to complete the installation of OS/2 using the IBM
IBMINT13.I13 driver provided on the Diskette1. This generic driver has limitations on the
number of drives and on the maximum drive size that it can handle. For example in our test
IBMINT13.I13 showed a limit of 8 drives and a maximum drive size of 8Megabyte.
Tip 14) Getting Trap 00D when booting OS/2
We have observed situations where these traps during system boot are cause by a device driver.
The following is a list of things to check:
1) Verify that you don't have a duplicate driver name in your config.sys. For example the
HPDA.ADD driver is provided by IBM in the OS/2 CDROM under the name DAC960.ADD.
Hewlett Packard recommends that you use the HPDA.ADD driver unless there is a specific
reason why you must use the DAC960.ADD driver.
2) If you are using the Netfinity server management tools it installs a driver called
NFDASD.FLT. The Hewlett Packard NetRAID driver MRAID.ADD version 1.06 ( date:
11/05/96 size: 24430) has a compatibility issue with the NFDASD.FLT driver. The new driver
MRAID.ADD version 1.07 (date: 1/30/97 size: 24624) resolved this problem. There are two
ways to verify if this old driver is causing your problem. (a) Place a Remark in front of the
NFDASD.FLT driver. (b) Replace the MRAID.ADD driver with the IBMINT13.I13 driver. If
one of these two steps resolves the Trap D while booting then obtain the new MRAID.ADD
driver immediately.
Tip 15) Getting Trap 008 during extensive disk/network I/O
It is possible to experience intermittent Trap 008 during extensive disk/network data transfer
when using the following configurations:
Configuration #1:
Four NIC's of any topology
Two HP NetRAID disk array cards with drives connected to all three ports
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