Guest

Cisco 7400 Series Routers

Field Notice: Flash Disk Failure on Cisco 7401ASR


Revised April 26, 2004

January 4, 2002


Products Affected

Product

Top Assembly

Comments

Part Number

MEM-COMP-FLD128M=

16-2350-01

Cisco 7400ASR Compact Flash Disk, 128 MB (spare)

Problem Description

A problem has been found with the 128 MB flash disks for the Cisco 7401. When a read operation is performed, the command-line interface (CLI) reports 0 K of memory available at powerup and any files that were on the flash disks are no longer visible. If the disk is accessed while the router runs, Cisco IOS® Software reports that the disk is of improper format or is not installed. This problem only occurs on flash disks manufactured by Hitachi. This problem does not occur on the Sandisk flash disks.

Background

A problem has been found in one of the field-programmable gate arrays (FPGAs) that causes a latch up problem on the flash disk. During a cold boot, the FPGA latches up the flash disk, which results in corruption of the onboard flash disk controller. The corruption results in failure of the system to access the flash disk. When a read operation is performed, the CLI reports back 0 K available space on the flash disk, and any files that were on the flash disk are no longer visible.

Problem Symptoms

When a read operation is performed, the CLI reports back 0 K available on flash disk. Furthermore, any files that were written to the flash disk are no longer visible to the system. The system fails to boot if the system is instructed to boot from a Cisco IOS Software image on the flash disk. The system boots the boot helper image instead.

Here is an example of the failure:

System Bootstrap, Version 12.2(1r)DD1, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright ©) 2001 by cisco Systems, Inc.
C7400 platform with 524288 Kbytes of main memory


Self decompressing the image : ################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################# 
[OK]

%SYS-6-READ_BOOTFILE_FAIL: disk0:c7400-js-mz.122-2.DD.bin File boot failed -- File not accessible.

%SYS-6-BOOT_MESSAGES: Messages above this line are from the boot loader.
Self decompressing the image : ################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################# 
[OK]

Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
©) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
©) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706


Cisco Internetwork Operating System Software
IOS (tm) 7400 Software (C7400-KBOOT-M), Version 12.2(1)DX, EARLY DEPLOYMENT RELEASE
SOFTWARE (fc1)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright ©) 1986-2001 by cisco Systems, Inc.
Compiled Thu 07-Jun-01 15:01 by hqluong
Image text-base: 0x600089C0, data-base: 0x607F6000

cisco 7401ASR (NSE) processor (revision C) with 491520K/32768K bytes of memory.
Processor board ID 0
R7000 CPU at 375Mhz, Implementation 39, Rev 3.3, 256KB L2, 2000KB L3 Cache
1 slot ASR midplane, Version 2.0

Last reset from power-on
Bridging software.
X.25 software, Version 3.0.0.
2 Gigabit Ethernet/IEEE 802.3 interface(s)
509K bytes of non-volatile configuration memory.

0K bytes of Flash PCMCIA card at slot 0 (Sector size 512bytes). 
8192K bytes of Flash internal SIMM (Sector size 256K).

Press RETURN to get started!

00:00:06: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down
00:00:07: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
00:00:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
Router(boot)>

Workaround/Solution

If the a flash disk is no longer readable and it is manufactured by Hitachi, please submit a return materials authorization (RMA).

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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