Field Notice: FN74308 - Some Cisco NCS 540 Routers with PID N540-24Q8L2DD-SYS May Show SSD Status as 'NEED UPGD' After Upgrade to Cisco IOS XR Software Releases 24.4.1 or 24.4.2 - Software Upgrade Recommended

Available Languages

Updated:November 7, 2025
Document ID:FN74308

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

High
Impact Rating:
High
First Published:
2025-Nov-07
Last Published:
2025-Nov-07
Revision:
1.0
Cisco Bug IDs:

Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Products Affected


Affected Product Name Description Comments
N540-24Q8L2DD-SYS NCS540-2x400G QSFP-DD+8x50G+24x25G  




Defect Information


Defect IDHeadline
CSCwk90159SSD (SRM24064BFKM2AC1C) Fpd Support for NCS540l arches

Problem Description


Cisco Network Convergence System (NCS) 540 Large Density Routers with the product ID (PID) of N540-24Q8L2DD-SYS may show a Solid State Drive (SSD) status of NEED UPGD after an upgrade to Cisco IOS XR Software releases 24.4.1 or 24.4.2. The NEED UPGD status can be disregarded because the router can resume normal operation after the mentioned updates. If the SSD FPD is subjected to a force upgrade, the affected router will stop functioning.


Background


N540-24Q8L2DD-SYS routers that exhibit the failure signature that is mentioned in the Problem Description of this field notice have compatibility issues between the SSD manufacturer part and Cisco IOS XR releases 24.4.1 and 24.4.2.


Problem Symptom


In response to the show hw-module fpd command, impacted N540-24Q8L2DD-SYS routers will reflect an ATR Status of NEED UPGD for FPD devices with names that begin with Ssd, as shown in the following example:

P/0/RP0/CPU0:ios#show hw-module fpd
Thu Jun 26 15:39:27.546 UTC
Auto-upgrade:Enabled,PM excluded
Attribute codes: B golden, P protect, S secure, A Anti Theft aware
                                                                         FPD Versions
                                                                        ==============
Location   Card type             HWver FPD device       ATR Status    Running  Programd   Reload Loc
-------------------------------------------------------------------------------------------------
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   ADM-DBConfig         CURRENT      2.05     2.05        NOT REQ
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   ADM-MBConfig         CURRENT      2.05     2.05        NOT REQ
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   IoFpga               CURRENT      2.12     2.12          0/RP0
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   IoFpgaGolden     B   CURRENT               2.12          0/RP0
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   Primary-BIOS     S   CURRENT      4.07     4.07          0/RP0
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   SsdSRM24M2       S   NEED UPGD   13.82    13.82          0/RP0
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   StdbyFpga        S   CURRENT      2.59     2.59          0/RP0
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   StdbyFpgaGolden  BS  CURRENT               2.59          0/RP0
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   TamFw            S   CURRENT      6.05     6.05          0/RP0
0/RP0/CPU0 N540-24Q8L2DD-SYS     4.0   TamFwGolden      BS  CURRENT               6.05          0/RP0
0/PM0      N540-PWR400-A         1.1   LI-PrimMCU           CURRENT      0.04     0.04        NOT REQ
0/PM0      N540-PWR400-A         1.1   LI-SecMCU            CURRENT      0.07     0.07        NOT REQ
0/PM1      N540-PWR400-A         1.1   LI-PrimMCU           CURRENT      0.04     0.04        NOT REQ
0/PM1      N540-PWR400-A         1.1   LI-SecMCU            CURRENT      0.07     0.07        NOT REQ
RP/0/RP0/CPU0:ios#

Forcing an upgrade will cause the router to become unrecoverable.


Workaround/Solution


N540-24Q8L2DD-SYS routers that are running Cisco IOS XR Software releases 24.4.1 or 24.4.2 can disregard the SSD status of NEED UPGD because the inaccurate ATR status display does not impact router operation.

As a fix for this issue, Cisco recommends updating N540-24Q8L2DD-SYS routers to Cisco IOS XR Software Release 25.1.1 or later.


How to Identify Affected Products


The affected SSD can be identified by the CLI command sudo smartctl -a -d ata /dev/sda, as shown in the following example:

sudo smartctl -a -d ata /dev/sda
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.6.69-yocto-standard] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model:     SRM24064BTIM2A71C
Serial Number:    STP2602XXXX

The routers assembled with SSD Device model SRM24064BTIM2A71C are impacted by the failure symptom that is described in this field notice.


Revision History


VersionDescriptionSectionDate
1.0Initial Release—2025-NOV-07

For More Information

For further assistance or for more information about this field notice, contact the Cisco Technical Assistance Center (TAC) using one of the following methods:

Receive Email Notification About New Field Notices

To receive email updates about Field Notices (reliability and safety issues), Security Advisories (network security issues), and end-of-life announcements for specific Cisco products, set up a profile in My Notifications.

Was this Document Helpful?

FeedbackFeedback

Contact Cisco