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- STATUS: BBS:YES
- (Reference TDR H053276 + H055684)
- SYMPTOM:
- This tip provides information concerning a potential data integrity
- problem on PS/2 micro channel systems configured with the adapters
- listed below.
-
- Adapter Name Option# FRU P/N
- --------------------- -------- -------
- IBM LANStreamer MC 32 33G9030 59G9047
- IBM LANStreamer MC 16 60G0511 60G0655
- IBM EtherStreamer MC 32 60G1573 59G9081
-
- In normal circumstances, the chances of experiencing data
- corruption are extremely small. However, the risk of data
- modification or loss can be eliminated in the noted hardware
- configurations by making the following changes:
-
- a. Increase arbitration priority
- (a lower arbitration number corresponds to a higher priority)
- b. Disable fairness
- c. Disable loop-back
- d. For 16-bit microchannel environments, set the receive buffer
- size equal to the maximum frame size.
-
- Items A and B are changed using "Change Configuration" (from
- the "Set and View Configuration" menu) on the System Partition.
-
- Items C and D are changed by editing the PROTOCOL.INI file.
- (these are only required for NDIS)
-
- Temporary work-around:
- When the above configuration changes are made, the following
- PS/2 system/model configurations are NOT exposed to data
- modification:
-
- - All PS/2 systems, including the 8600 models 195/295*, with
- only 1 of the referenced EtherStreamer or LANStreamer
- adapters installed.
-
- Notes:
- - On PS/2 models 8595-AMX or 9595-AMX or any PS/2 upgraded with the
- Enhanced 486/50MHz Enhanced Processor Upgrade option must have
- ECA001 installed on the PC.
-
- - On PS/2 9585 turn off the LANStreamer or EtherStreamer adapter's
- data streaming function using "Change Configuration"
-
- Fix:
- Corrected LANStreamer adapters are now available. There are new FRU
- numbers associated with these new adapters. Any adapters with the old
- FRU numbers needs to be replaced.
-
- Adapter Name Old FRU# New FRU# ECA Nbr.
- ----------------------- -------- -------- --------
- IBM LANStreamer MC 32 59G9047 74G0106 ECA002
- IBM LANStreamer MC 16 60G0655 74G0820 ECA003
- IBM EtherStreamer MC 32 59G9081 74G0865 ECA003
-
- Please use the normal warranty procedure to obtain the reworked adapters.
- To handle the exchange process as easy as possible, you may request the
- new adapters by advanced delivery without an extra charge.
- Send a copy of the warranty claim form by fax to:
-
- IBM Schweiz, National Repair Center, Fax Nr. 01 / 803 06 29.
-
- Return all removed cards within 10 days together with the original warranty
- claim form to:
- IBM Schweiz
- Rparaturzentrum
- LAN Streamer Adapter
- Steinackerstr. 56
- 8302 Kloten
-
- 15.07.1994 / B. Engler / HW-Hotline