Contents

Introduction

Problem: Customers report of faulty FSC 16 with degraded Hd-raid

Troubleshoot

Solution

Super Capacitor Failure on drives of single FSC

Introduction

This document describes a specific hardware issue on Fabric and storage Card (FSC) on Cisco Aggregrated Service Routers (ASR) 5500.

Problem: Customers report of faulty FSC 16 with degraded Hd-raid

******** Show alarm outstanding verbose *******

Severity Object          Timestamp                          Alarm ID

-------- ----------      ---------------------------------- ---------------------

Alarm Details

------------------------------------------------------------------------------------------------------------------------------------

Minor    Card 14         Sunday August 21 07:16:34 A        3610743104839221248

The Fabric & 2x200GB Storage Card in slot 14 is a single point of failure. Another Fabric & 2x200GB Storage Card of the same type is needed.

Minor    Card 15         Sunday August 21 07:16:34 A        3610743104839221249

The Fabric & 2x200GB Storage Card in slot 15 is a single point of failure. Another Fabric & 2x200GB Storage Card of the same type is needed.

Minor    Card 17         Sunday August 21 07:16:34 A        3610743104839221250

The Fabric & 2x200GB Storage Card in slot 17 is a single point of failure. Another Fabric & 2x200GB Storage Card of the same type is needed.

******** show card table all *******

Slot         Card Type                               Oper State     SPOF  Attach

-----------  --------------------------------------  -------------  ----  ------

1: DPC      Data Processing Card                    Active         No

2: DPC      Data Processing Card                    Active         No

3: DPC      Data Processing Card                    Active         No

4: DPC      Data Processing Card                    Active         No

5: MMIO     Management & 20x10Gb I/O Card           Active         No

6: MMIO     Management & 20x10Gb I/O Card           Standby        -

7: DPC      Data Processing Card                    Active         No

8: DPC      Data Processing Card                    Active         No

9: DPC      Data Processing Card                    Active         No

10: DPC      Data Processing Card                    Standby        -

11: SSC      System Status Card                      Active         No

12: SSC      System Status Card                      Active         No

13: FSC      None                                    -              -

14: FSC      Fabric & 2x200GB Storage Card           Active         Yes

15: FSC      Fabric & 2x200GB Storage Card           Active         Yes

16: FSC      Fabric & 2x200GB Storage Card           Active         No

17: FSC      Fabric & 2x200GB Storage Card           Active         Yes

******** show hd raid verbose *******

HD RAID:

State                     : Available (active)

Degraded                  : Yes   <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

UUID                      : 59a7ebf0:7f798af6:68869614:3210b2c6

Size                      : 1.2TB (1200000073728 bytes)

Action                    : Idle

Card 16

State                   : Faulty card   <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Description             : FSC16 SAD17160089

Size                    : 400GB (400096755712 bytes)

Disk hd16a

State                 : In-sync component

Created               : Fri May 23 23:05:53 2014

Updated               : Fri May 23 23:05:53 2014

Events                : 0

Model                 : STEC Z16IZF2E-200UCU E4TC

Serial Number         : STM000171E75

Size                  : 200GB (200049647616 bytes)

Disk hd16b

State                 : In-sync component

Created               : Fri May 23 23:05:53 2014

Updated               : Fri May 23 23:05:53 2014

Events                : 0

Model                 : STEC Z16IZF2E-200UCU E4TC

Serial Number         : STM000171E8B

Size                  : 200GB (200049647616 bytes)

Troubleshoot

These errors are reported when you start the troubleshoot with syslogs.

[local-60sec34.188] [hdctrl 132011 critical] [5/0/7135 <hdctrl:0> rl_fsm_mirror.c:5938] [software internal system critical-info syslog] hd16, FSC16 SAD17160089 failed from RAID 59a7ebf0:7f798af6:68869614:3210b2c6, MIO5 SAD1716021N.

[local-60sec34.188] [hdctrl 132016 error] [5/0/7135 <hdctrl:0> rl_fsm_mirror.c:3399] [software internal system critical-info syslog] Error detected on hd16a (STEC Z16IZF2E-200UCU E4TC STM000171E75), FSC16 SAD17160089: ioerr_cnt increased from 25 to 27

[local-60sec34.221] [alarmctrl 65201 info] [5/0/7072 <evlogd:0> alarmctrl.c:192] [software internal system critical-info syslog] Alarm condition: id 321befb92b220000 (Minor): The Fabric & 2x200GB Storage Card in slot 14 is a single point of failure. Another Fabric & 2x200GB Storage Card of the same type is needed.

[local-60sec34.222] [alarmctrl 65201 info] [5/0/7072 <evlogd:0> alarmctrl.c:192] [software internal system critical-info syslog] Alarm condition: id 321befb92b220002 (Minor): The Fabric & 2x200GB Storage Card in slot 17 is a single point of failure. Another Fabric & 2x200GB Storage Card of the same type is needed.

[local-60sec34.222] [alarmctrl 65201 info] [5/0/7072 <evlogd:0> alarmctrl.c:192] [software internal system critical-info syslog] Alarm condition: id 321befb92b220001 (Minor): The Fabric & 2x200GB Storage Card in slot 15 is a single point of failure. Another Fabric & 2x200GB Storage Card of the same type is needed.

If you see this error log:

Aug 21 07:16:34 evlogd: [local-60sec34.188] [hdctrl 132016 error] [5/0/7135 <hdctrl:0> rl_fsm_mirror.c:3399] [software internal system critical-info syslog] Error detected on hd16a (STEC Z16IZF2E-200UCU E4TC STM000171E75), FSC16 SAD17160089: ioerr_cnt increased from 25 to 27

It is always advisable to run the smart test and check if this issue is not related to high temperature.

[local]# show hd smart hd16a

smartctl 6.1 2013-03-16 r3800 [x86_64-linux-2.6.38-staros-v3-hw-64] (local build)

Copyright (C) 2002-13, Bruce Allen, Christian Franke,  www.smartmontools.org

=== START OF INFORMATION SECTION ===

Vendor:               STEC

Product:              Z16IZF2E-200UCU

Revision:             E4TC

User Capacity:        200,049,647,616 bytes [200 GB]

Logical block size:   512 bytes

LU is resource provisioned, LBPRZ=1

Rotation Rate:        Solid State Device

Form Factor:          2.5 inches

Logical Unit id:      0x5000a72030079304

Serial number:        STM000171E75

Device type:          disk

Transport protocol:   SAS

Local Time is:        Mon Aug 22 16:49:11 2016 AST

SMART support is:     Available - device has SMART capability.

SMART support is:     Enabled

Temperature Warning:  Enabled

=== START OF READ SMART DATA SECTION ===

SMART Health Status: OK

SS Media used endurance indicator: 0%

Current Drive Temperature:     52 C

Drive Trip Temperature:        75 C

local]SAE-G168A-1# show hd smart hd16b

smartctl 6.1 2013-03-16 r3800 [x86_64-linux-2.6.38-staros-v3-hw-64] (local build)

Copyright (C) 2002-13, Bruce Allen, Christian Franke,  www.smartmontools.org

=== START OF INFORMATION SECTION ===

Vendor:               XXXX

Product:              Z16IZF2E-200UCU

Revision:             E4TC

User Capacity:        200,049,647,616 bytes [200 GB]

Logical block size:   512 bytes

LU is resource provisioned, LBPRZ=1

Rotation Rate:        Solid State Device

Form Factor:          2.5 inches

Logical Unit id:      0x5000a7203007932c

Serial number:        STM000171E8B

Device type:          disk

Transport protocol:   SAS

Local Time is:        Mon Aug 22 16:49:21 2016 AST

SMART support is:     Available - device has SMART capability.

SMART support is:     Enabled

Temperature Warning:  Enabled

=== START OF READ SMART DATA SECTION ===

SMART Health Status: OK

SS Media used endurance indicator: 0%

Current Drive Temperature:     50 C

Drive Trip Temperature:        75 C

Since the smart test is ok you can conclude its not related to high temperature issue.

Solution

Super Capacitor Failure on drives of single FSC

Sometimes one or both the drives on a single FSC moves to Invalid Partition or image state.

This could happen if Super Capacitor is failed which is in the drive of a single FSC. This failure cannot be recovered as it is a permanent drive failure where either the drive is replaced or the FSC.

Please contact Cisco TAC for further assistance.

If this is seen for any drive, there is a super capacitor failure on that drive.

These logs are seen in the debug console logs of active Management Input/Output card (MIO).

2016-Aug-21+07:16:34.038 card 5-cpu0: [974499.606697] sd 0:0:2:0: [sde] Unhandled sense code^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.611565] sd 0:0:2:0: [sde]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.618877] sd 0:0:2:0: [sde]  Sense Key : Data Protect [current] ^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.625214] sd 0:0:2:0: [sde]  Add. Sense: Write protected^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.630840] sd 0:0:2:0: [sde] CDB: Write(10): 2a 00 00 00 08 08 00 00 08 00^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.638173] end_request: I/O error, dev sde, sector 2056^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.643558] md: super_written gets error=-5, uptodate=0^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.648872] md/raid:md0: Disk failure on md16, disabling device.^M

2016-Aug-21+07:16:34.139 card 5-cpu0: [974499.648873] md/raid:md0: Operation continuing on 3 devices.^M

2016-Aug-21+07:16:34.238 card 5-cpu0: [974499.712047] sd 0:0:2:0: [sde]  Sense Key : Recovered Error [current] ^M

2016-Aug-21+07:16:34.238 card 5-cpu0: [974499.718637] sd 0:0:2:0: [sde]  <<vendor>> ASC=0x80 ASCQ=0x0ASC=0x80 ASCQ=0x0^M

2016-Aug-21+07:21:37.112 card 5-cpu0: [974802.605115] sd 0:0:2:0: [sde]  Sense Key : Recovered Error [current] ^M

2016-Aug-21+07:21:37.112 card 5-cpu0: [974802.611712] sd 0:0:2:0: [sde]  <<vendor>> ASC=0x80 ASCQ=0x0ASC=0x80 ASCQ=0x0^M

2016-Aug-21+07:26:37.099 card 5-cpu0: [975102.612464] sd 0:0:2:0: [sde]  Sense Key : Recovered Error [current] ^M

Please check particular error logs in

1. Debug console outputs of active MIO Card

2. Debug hdctrl mapping

3. Debug hdctrl history

And this confirms supercapacitor failure.

**** debug console card <Active MIO card> cpu 0 tail 10000 only *****

[sde] <> ASC=0x80 ASCQ=0x0ASC=0x80 ASCQ=0x0

******** debug hdctrl history *******

Thursday March 31 02:29:03 EDT 2016

Primary HDCTRL:

2016-Mar-31+02:13:38.632 move fsm=hd15#6 src=DISK_CHECK dst=DISK_FAILED arg=disk I/O error  # hdctrl/hdctrl_fsm_disk.c  : 4354    @ disk_fsm_enter()

Below is the mapping of the disks to device name:

******** debug hdctrl mapping *******

Local card (5):

Disk        Device  Number  SCSI     Size

----------  ------  ------  -------  ------

hd14a       sdb     8:16    0:0:0:0  186 GB

hd15a       sdd     8:48    0:0:1:0  186 GB

hd16a       sde    8:64    0:0:2:0  186 GB

hd17a       sdg     8:96    0:0:3:0  186 GB

hd14b       sda     8:0     1:0:0:0  186 GB

hd15b       sdc     8:32    1:0:1:0  186 GB

hd16b       sdf     8:80    1:0:2:0  186 GB

hd17b       sdh     8:112   1:0:3:0  186 GB

Below highlated logs indicating a failure of the super capacitor on the solid state drive of FSC card disk 16a.

hd16a <==>sde

-------------

2016-Aug-21+07:21:37.112 card 5-cpu0: [974802.611712] sd 0:0:2:0: [sde] <<vendor>> ASC=0x80 ASCQ=0x0ASC=0x80 ASCQ=0x0^M

2016-Aug-21+07:26:37.099 card 5-cpu0: [975102.612464] sd 0:0:2:0: [sde] Sense Key : Recovered Error [current] ^M