One of the hosts in the cluster shows log spew as " Issue detected on HOSTNAME in ha-datacenter: DC: 779: Duplicate name '\xE1\x99\x5C\xB9\xF2\x8F\x8F\xD1.X\xDE\xE6' entry in cache.\x0A (2024-09-26T02:06:20.726Z cpu8:8635515)"
ESXI 7.x
ESXi 8.x
A corruption in datastore/partition usually reports these events of duplicate names and it can be observed in hostd and vmkernel, vmkwarning logs
hostd log
####-##-##T##:##Z In(166) Hostd[2098792]: [Originator@6876 sub=Vimsvc.ha-eventmgr] Event 17277 : Issue detected on Hostname DC: 779: Duplicate name '\xF6x\xE4\x97t\x02n\xA2.\x0A\xDA\xB5' entry in cache.\x0A (####-##-##T##:##Z cpu26:5713819)
####-##-##T##:##Z In(166) Hostd[2098792]: [Originator@6876 sub=Vimsvc.ha-eventmgr] Event 17278 : Issue detected on Hostname : DC: 779: Duplicate name 'NF\xBD\xDE\x88\xB4\x87\xAB.\x99\xC8\xDE' entry in cache.\x0A (####-##-##T##:##Z cpu26:5713819)
####-##-##T##:##Z In(166) Hostd[2098792]: [Originator@6876 sub=Vimsvc.ha-eventmgr] Event 17279 : Issue detected on Hostname : DC: 779: Duplicate name '\x1A1\x99\x03"\x8B7N.\x1C,\xA7' entry in cache.\x0A (####-##-##T##:##Z cpu26:5713819)
####-##-##T##:##Z In(166) Hostd[2098792]: [Originator@6876 sub=Vimsvc.ha-eventmgr] Event 17280 : Issue detected on Hostname : DC: 779: Duplicate name '\xC1\x97E\xC0\x91\xFD\x04f.I\x86\xF7' entry in cache.\x0A (####-##-##T##:##Z cpu26:5713819)
vmkernel log
####-##-##T##:##Z In(182) vmkernel: cpu9:2097223)NMP: nmp_ThrottleLogForDevice:3842: last error status from device mpx.vmhba32:C0:T0:L0 repeated 1 times
####-##-##T##:##Z In(182) vmkernel: ڵ' entry in cache.ESC[0m
####-##-##T##:##.717Z Al(177) vmkalert: cpu4:8635515)ALERT: DC: 779: Duplicate name '
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##.717Z Wa(180) vmkwarning: cpu2:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>.
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##.718Z Al(177) vmkalert: cpu4:8635515)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##Z In(182) vmkernel: ڵ' entry in cache.ESC[0m
####-##-##T##:##.722Z Al(177) vmkalert: cpu0:8635515)ALERT: DC: 779: Duplicate name '
####-##-##T##:##.722Z Wa(180) vmkwarning: cpu2:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>|
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##.722Z Al(177) vmkalert: cpu0:8635515)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##Z In(182) vmkernel: ڵ' entry in cache.ESC[0m
####-##-##T##:##.726Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>.
####-##-##T##:##.726Z Al(177) vmkalert: cpu8:8635515)ALERT: DC: 779: Duplicate name '
####-##-##T##:##.727Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>.
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##.727Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>.
####-##-##T##:##.727Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>.
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##.727Z Al(177) vmkalert: cpu8:8635515)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##Z In(182) vmkernel: ڵ' entry in cache.ESC[0m
####-##-##T##:##.731Z Al(177) vmkalert: cpu8:8635515)ALERT: DC: 779: Duplicate name '
####-##-##T##:##.731Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>|
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##Z In(182) vmkernel: ' entry in cache.ESC[0m
####-##-##T##:##.731Z Al(177) vmkalert: cpu8:8635515)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##.741Z In(182) vmkernel: cpu32:8637960)Dump: 1985: DumpProgress: Vmk data/heap 14
In vmkwarning log we see similar entries pointing to issues of storage device full/corrupted.
####-##-##T##:##Z Al(177) vmkalert: cpu26:5713819)ALERT: DC: 779: Duplicate name '
####-##-##T##:##Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>|
####-##-##T##:##Z Al(177) vmkalert: cpu26:5713819)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##Z Al(177) vmkalert: cpu26:5713819)ALERT: DC: 779: Duplicate name '
####-##-##T##:##Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>|
####-##-##T##:##Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>.
####-##-##T##:##Z Wa(180) vmkwarning: cpu0:2097204)WARNING: Term: 1403: Unknown escape sequence <ESC>.
####-##-##T##:##Z Al(177) vmkalert: cpu26:5713819)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##Z Wa(180) vmkwarning: cpu26:5713853)WARNING: VFAT: 354: VFAT volume mpx.vmhba32:C0:T0:L0:6 (UUID ########-8e460a8f-d28b-#######) is full. (8386560 sectors, 7698048 free sectors)
..
..
####-##-##T##:##Z Al(177) vmkalert: cpu32:8622028)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##Z Al(177) vmkalert: cpu38:8636427)ALERT: DC: 779: Duplicate name '
####-##-##T##:##Z Al(177) vmkalert: cpu38:8636427)ALERT: DC: 779: Duplicate name 'M^Z.^N8+' entry in cache.
####-##-##T##:##Z Wa(180) vmkwarning: cpu4:2097222)WARNING: ScsiDeviceIO: 4562: ModeSense 0x1a request failed - blocking page:0xa subpage:0x0 mpx.vmhba0:C0:T3:L0
####-##-##T##:##Z Wa(180) vmkwarning: cpu30:2098796)WARNING: HBX: 754: 'LOCKER-61b4afc4-b900ac3a-ed8f-#######': HB at offset 17000825023731861011 - Volume 6######-b####-ed8f-####### may be damaged on disk. Corrupt heartbeat detected:
####-##-##T##:##Z Wa(180) vmkwarning: cpu30:2098796)WARNING: [HB state 78497d91 offset 17000825023731861011 gen 1629114822488730192 stampUS 7843961104549710103 uuid 0ccb31da-ea3edc29-22b9-XXXXXXXjrnl <FB 198836645> drv 398335438.221 lockImpl 192 ip &$
The systems can also report the errors, in the following manner
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'fdm.2.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'hostd.8.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'hostd.7.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'hostd.8.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'hostd.7.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'hostd-probe.7.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'hostd-probe.4.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vmkernel.2.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vmkernel.2.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vmkernel.2.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vdfsd-server.log' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vdtc.6.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vdtc.6.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vdfsd-server.log' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vsansystem.3.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'crx-cli.3.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vdfsd-server.log' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vmkwarning.0.gz' entry in cache.
####-##-##T##:##Z cpu0:2101434 opID=18b2a8f7)ALERT: DC: 780: Duplicate name 'vsansystem.2.gz' entry in cache.