BugZero | Cisco BugID CSCvw84539 - Low disk space on NCS5500 SC cards

Cisco - Defect ID: CSCvw84539

Low disk space on NCS5500 SC cards

Cisco - Defect ID: CSCvw84539

Low disk space on NCS5500 SC cards

Last updated on January 14th, 2024

BugZero Risk Score
6.1 Medium

Overall: 6.1

Severity: 6.4

Lifecycle: 9.1

Popularity: 5.1

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Bug Details

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Description

Symptom

Alarms on system log informing about low disk space on SC cards: 0/SC0/ADMIN0:Sep 31 12:14:18.415: wd_diskmon[2225]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: /misc/scratch Usage %: 82 , State: MINOR, MINOR Threshold %: 80 0/SC1/ADMIN0:Sep 31 12:33:11.109: wd_diskmon[2229]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: / Usage %: 82 , State: MINOR, MINOR Threshold %: 80 0/SC1/ADMIN0:Sep 31 12:33:11.109: wd_diskmon[2229]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: /misc/scratch Usage %: 82 , State: MINOR, MINOR Threshold %: 80 0/SC0/ADMIN0:Sep 31 12:33:18.418: wd_diskmon[2225]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: / Usage %: 82 , State: MINOR, MINOR Threshold %: 80 0/SC0/ADMIN0:Sep 31 12:33:18.419: wd_diskmon[2225]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: /misc/scratch Usage %: 82 , State: MINOR, MINOR Threshold %: 80 0/SC1/ADMIN0:Sep 31 12:52:11.204: wd_diskmon[2229]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: / Usage %: 82 , State: MINOR, MINOR Threshold %: 80 0/SC1/ADMIN0:Sep 31 12:52:11.205: wd_diskmon[2229]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: /misc/scratch Usage %: 82 , State: MINOR, MINOR Threshold %: 80 0/SC0/ADMIN0:Sep 31 12:52:18.526: wd_diskmon[2225]: %INFRA-WD_DISKMON_SYSADMIN-3-DISK_ALARM_MINOR : Sysadmin: Device: / Usage %: 82 , State: MINOR, MINOR Threshold %: 80

Conditions

Sysadmin SMU deployment on NCS5500.

Workaround

Log message could be considered as cosmetic. There are two different options to avoid this log message: 1. Supress log message 2. Incresase size of disk on SC with command "mount -o remount,size=1g tmpfs /lxc_rootfs/panini_vol_grp-calvados_lv0/" from host OS on SC card. This will add 100MB extra to SC card. This workaround will not survive a SC reload: Example: [host:0_SC0:/]$ mount -o remount,size=1g tmpfs /lxc_rootfs/panini_vol_grp-calvados_lv0/ To log to host OS on SC card: RP/0/RP0/CPU0:NCS5516A#admin iox connected from 127.0.0.1 using console on BRU-5516A sysadmin-vm:0_RP0# run [sysadmin-vm:0_RP0:~]$/opt/cisco/calvados/sbin/rconsole -l 0/SC0 Connecting to Card Manager Node Scope service Getting Mastership Status from Card Manager Slot 27 HW arbitration result = Master Writing to console register => Address 0xfc set to 0x801d0000 Connecting .. Escape char is ^x [control+x] -----------------------------------------> Please mind this for exiting later host:0_SC0 login: Password: or RP/0/RP0/CPU0:NCS5516Ar#admin iox connected from 127.0.0.1 using console on BRU-5516A sysadmin-vm:0_RP0# attach location 0/sc0 [sysadmin-vm:0_SC0:~]$ ssh 10.0.2.16 [host:0_SC0:~]$

Further Problem Description

• Low disk space log messages may be seen on SC cards or FC cards on NCS5500. It is required to store some packages on disk. • These log messages could be considered cosmetic. SC or FC cards should bring the software from memory on boot up. • In order to remove log messages, we need to manually add more memory to root-fs for calvados on SCs (command ?mount -o remount,size=1g tmpfs /lxc_rootfs/panini_vol_grp-calvados_lv0/?). This is considered as safe to run in production environment. • Low disk space on SC cards on NCS5500 could be seen again on router reload or new SMU deployment. • These log messages should not create any problems on new SMU deployment in the router.

Relevant Products

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Affected versions:No known affected versions

Fixed versions: 6.8.1, 6.8.2, 6.9.1, 6.9.2, 7.10.1, 7.10.2, 7.11.1, 7.3.0, 7.3.1, 7.3.15, 7.3.16, 7.3.2, 7.3.25, 7.3.26, 7.3.27, 7.3.3, 7.3.4, 7.3.5, 7.4.1, 7.4.15, 7.4.16, 7.4.2, 7.5.1, 7.5.12, 7.5.2, 7.5.3, 7.5.4, 7.5.5, 7.6.1, 7.6.15, 7.6.2, 7.6.3, 7.7.1, 7.7.2, 7.7.21, 7.8.1, 7.8.2, 7.8.22, 7.9.1, 7.9.2, 7.9.21

Relevant Products

Click on a version to see all relevant bugs

Affected versions:No known affected versions

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Cisco - Defect ID: CSCvw84539

Low disk space on NCS5500 SC cards

Cisco - Defect ID: CSCvw84539

Low disk space on NCS5500 SC cards

Last updated on January 14th, 2024

BugZero Risk Score6.1 Medium

Bug Details

Symptom

Conditions

Workaround

Further Problem Description

Top Cisco Defects

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BugZero Risk Score
6.1 Medium