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Service Hints & Tips

Document ID: MCGN-4569WV

Servers - Data corruption on HPFS386 drives or boot failure

Applicable to: World-Wide

Source: Retain tip H165854

Abstract: Fixpak IP08528 can cause data corruption on HPFS386 drives or boot failure.

SYMPTOMS:
LAN Server FixPaks starting with FixPak IP08508 contain performance enhancement code that can cause data corruption or boot failure when turned on. The boot failure is sometimes seen as a Trap 00E at boot time. The default state of this performance enhancement code was off until FixPak IP08528. Starting with FixPak IP08528 the default state of this code is ON. On the first reboot after installing IP08528, corruption can occur.

PROBLEM ISOLATION AIDS:

The system is any of the following IBM servers:

• a Netfinity 7000-M10 server, Type 8680, any Model.
• a Netfinity 7000 server, Type 8651, any Model.
• a Netfinity 5500-M10 server, Type 8661, any Model.
• a Netfinity 5500 server, Type 8660, any Model.
• a Netfinity 5000 server, Type 8659, any Model.
• a Netfinity 3500 server, Type 8644, any Model.
• a Netfinity 3000 server, Type 8476, any Model.
• a Netfinity 704 server, Type 8650, any Model.
• a PC Server 720, Type 8642, any Model.
• a PC Server 520, Type 8641, any Model.
• a PC Server 500, Type 8641, any Model.
• a PC Server 330, Type 8640, any Model.
• a PC Server 325, Type 8639, any Model.
• a PC Server 320, Type 8640, any Model.
• a PC Server 315, Type 8638, any Model.
• a PC Server 310, Type 8639, any Model.
• a PC Server 300, Type 8640, any Model.

NOS affected:

• OS/2 Warp Server Advanced Version 4 with FixPack IP08528 applied.

The system has the described symptoms.

WORKAROUND:
The temporary fix for the problem is to not turn the performance enhancement code on in FixPaks prior to IP08528, or to turn it off if IP08528 is installed. To turn it off, type HPFSPERF NO at the command line if the system can be booted. If the system will not boot, boot from HPFS386 boot diskettes and add the following four lines to the bottom of HPFS386.INI:

[commit_heuristics]
async = no
sort = no
merge = no

HPFS386.INI is found in the ibm386fs directory on the boot drive.

DETAILS:
Final fix not available yet.

All FixPaks after IP08528 will have the feature off as the default until the actual problem with the code can be corrected.

SAS KEYWORDS:
PSY2, NETFINITY, PCSERVER, UNCLASSIFIED, 7000-M10, D/T8680, 720, D/T8642, 7000, D/T8651, 520, D/T8641, 5500-M10, D/T8661, 500, D/T8641, 5500, D/T8660, 330, D/T8640, 5000, D/T8659, 325, D/T8639, 3500, D/T8644, 320, D/T8640, 3000, D/T8476, 315, D/T8638, 704, D/T8650, 310, D/T8639, OS/2, LAN SERVER, 300, D/T8640, FIXPAK, IP08508, IP08528, HPFS386.INI, IC22875

	Search Keywords	PSY2, NETFINITY, PCSERVER, UNCLASSIFIED, 7000-M10, D/T8680, 720, D/T8642, 7000, D/T8651, 520, D/T8641, 5500-M10, D/T8661, 500, D/T8641, 5500, D/T8660, 330, D/T8640, 5000, D/T8659, 325, D/T8639, 3500, D/T8644, 320, D/T8640, 3000, D/T8476, 315, D/T8638, 704, D/T8650, 310, D/T8639, OS/2, LAN SERVER, 300, D/T8640, FIXPAK, IP08508, IP08528, HPFS386.INI, IC22875
	Document Category	Hard Drives, OS/2, Retain
	Date Created	16-02-99
	Last Updated	17-02-99
	Revision Date
	Brand	IBM PC Server
	Product Family	Netfinity 3000, Netfinity 3500, Netfinity 5000, Netfinity 5500, Netfinity 5500 M10, Netfinity 7000, Netfinity 7000 M10, PC Server 300, PC Server 310, PC Server 315, PC Server 320, PC Server 325, PC Server 330, PC Server 500, PC Server 520, PC Server 704, PC Server 720
	Machine Type	8476, 8644, 8659, 8660, 8661, 8651, 8680, 8640, 8639, 8638, 8641, 8650, 8642
	Model
	TypeModel
	Retain Tip (if applicable)	H165854
	Reverse Doclinks and Admin Purposes	Date last altered: A99/02/10