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A 1394 storage device with more than one Logical Unit Number (LUN) may stop functioning if another 1394 device is either inserted or removed from the computer.
When a 1394 bus reset occurs after a device is inserted or removed, the 1394 mass-storage driver (Sbp2port.sys) must reconnect to each LUN on a 1394 mass-storage device. 1394 mass-storage devices can only handle one reconnect request at a time. The Sbp2port.sys driver often submits more than one request a time, one for each LUN on the device. The mass-storage device ignores the multiple reconnect requests, and only reconnects the first LUN. Because of this, other LUNs on the device are not reconnected, and become non-functional.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
322389 How to Obtain the Latest Windows XP Service Pack
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name Operating System ------------------------------------------------------------------------- 11-Mar-2002 09:38 22.214.171.1247 36,528 Sbp2port.sys Windows 98 Second Edition 26-Feb-2002 11:21 4.90.3002.0 36,720 Sbp2port.sys Windows Millennium Edition (Me) 22-Mar-2002 09:11 5.0.2195.5236 34,352 Sbp2port.sys Windows 2000 20-Dec-2001 16:40 5.1.2600.26 37,760 Sbp2port.sys Windows XP
Notes for Windows 98 Second Edition
Before you install the update that is described in this article, you must install the updates that are described in the following Microsoft Knowledge Base article:
242975 Update for 1394 Storage Peripherals in Windows 98 Second Edition
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows 2000 Service Pack 3 (SP3) and Microsoft Windows XP Service Pack 1 (SP1).
For additional information about Windows 98 and Windows 98 Second Edition hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
206071 General Information About Windows 98 and Windows 98 Second Edition Hotfixes
For additional information about Windows Me hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
295413 General Information About Windows Millennium Edition Hotfixes