~] esxcli vsan cluster get Cluster Information Enabled: true Current Local Time: 2026-10-10T12:44:44Z Local Node UUID: 6ac9f1ee-fefe-7e75-9d9f-005056a9f8db Local Node Type: NORMAL Local Node State: MASTER Local Node Health State: HEALTHY Sub-Cluster Master UUID: 6ac9f1ee-fefe-7e75-9d9f-005056a9f8db Sub-Cluster Backup UUID: 6ac9f1df-0504-d098-6e06-005056a91f59 Sub-Cluster UUID: 52e66e3d-e38f-402f-4aa2-82e6f2c55107 Sub-Cluster Membership Entry Revision: 2 Sub-Cluster Member Count: 3 Sub-Cluster Member UUIDs: 6ac9f1ee-fefe-7e75-9d9f-005056a9f8db, 6ac9f1df-0504-d098-6e06-005056a91f59, 6ac9f1de-fe45-65dc-8f82-005056a9fb41 Sub-Cluster Member HostNames: ESXi01, ESXi03, ESXi02 Sub-Cluster Membership UUID: 7924ca6a-2005-533b-6a87-005056a9f8db Unicast Mode Enabled: true Maintenance Mode State: OFF Config Generation: 53fc0dde-6fb5-48bd-a368-3069a9e0082e 5 2026-10-10T11:28:12.740 Mode: REGULAR
~] esxcli vsan health cluster list Health Test Name Status -------------------------------------------------- ------ Overall health red (vSAN Object health) Data red vSAN object health red vSAN object format health green Performance service red Stats DB object green Stats primary election red Network green Hosts with connectivity issues green vSAN cluster partition green All hosts have a vSAN vmknic configured green vSAN: Basic (unicast) connectivity check green vSAN: MTU check (ping with large packet size) green vMotion: Basic (unicast) connectivity check green vMotion: MTU check (ping with large packet size) green Network latency check green Physical disk green Operation health green Disk capacity green Congestion green Component limit health green Component metadata health green Memory pools (heaps) green Memory pools (slabs) green Cluster green Advanced vSAN configuration insync green vSAN daemon liveness green vSAN Disk Balance green Resync operations throttling green Software version compatibility green Disk format version green Capacity utilization green Storage space green Read cache reservations green Component green What if the most consumed host fails green
Solution:
Check vSAN network is ok on EXSi.
~] vmkping -I vmk1 -s 8972 -d 192.168.10.82 PING 192.168.10.82 (192.168.10.82): 8972 data bytes 8980 bytes from 192.168.10.82: icmp_seq=0 ttl=64 time=0.610 ms 8980 bytes from 192.168.10.82: icmp_seq=1 ttl=64 time=0.410 ms 8980 bytes from 192.168.10.82: icmp_seq=2 ttl=64 time=0.469 ms
--- 192.168.10.82 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.410/0.496/0.610 ms
/localhost/Datacenter/computers/vSAN> vsan.check_state . 2026-10-10 20:54:01 +0800: Step 1: Check for inaccessible vSAN objects Detected 4 objects to be inaccessible Detected 701bca6a-284e-0d0c-62b3-005056a9f8db on 192.168.3.81 to be inaccessible Detected d705ca6a-0775-ddc8-dddf-005056a9f8db on 192.168.3.81 to be inaccessible Detected 1821ca6a-6d36-6dd1-c2e0-005056a9fb41 on 192.168.3.81 to be inaccessible Detected 631bca6a-6a8b-f4f0-0205-005056a9f8db on 192.168.3.81 to be inaccessible
2026-10-10 20:54:01 +0800: Step 2: Check for invalid/inaccessible VMs Detected VM 'vCLS-c87d76aa-0ede-48f0-9a6e-c6d9c530f333' as being 'inaccessible'
2026-10-10 20:54:01 +0800: Step 3: Check for VMs forwhich VC/hostd/vmx are out of sync Did not find VMs forwhich VC/hostd/vmx are out of sync
/localhost/Datacenter/computers/vSAN> vsan.check_state . 2026-10-10 22:25:40 +0800: Step 1: Check for inaccessible vSAN objects Detected 5 objects to be inaccessible Detected 701bca6a-284e-0d0c-62b3-005056a9f8db on 192.168.3.81 to be inaccessible Detected 1821ca6a-6d36-6dd1-c2e0-005056a9fb41 on 192.168.3.81 to be inaccessible Detected 631bca6a-6a8b-f4f0-0205-005056a9f8db on 192.168.3.81 to be inaccessible Detected cc2cca6a-181c-59c4-6f43-005056a9fb41 on 192.168.3.83 to be inaccessible Detected d705ca6a-0775-ddc8-dddf-005056a9f8db on 192.168.3.83 to be inaccessible
2026-10-10 22:25:40 +0800: Step 2: Check for invalid/inaccessible VMs
2026-10-10 22:25:40 +0800: Step 3: Check for VMs forwhich VC/hostd/vmx are out of sync Did not find VMs forwhich VC/hostd/vmx are out of sync
/localhost/Datacenter/computers/vSAN> vsan.perf.stats_object_delete . Deleting vSAN Stats DB object, which will stop vSAN Performance Service ... Task: Disable vSAN performance service New progress: 1% Task result: error
#>> Reset advanced parameters on each host
[root@ESXi01:~] esxcfg-advcfg -g /vSAN/DOMPauseAllCCPs Value of DOMPauseAllCCPs is 1 [root@ESXi01:~] esxcfg-advcfg -s 0 /vSAN/DOMPauseAllCCPs Value of DOMPauseAllCCPs is 0
[root@ESXi01:~] esxcfg-advcfg -g /vSAN/IgnoreClusterMemberListUpdates Value of IgnoreClusterMemberListUpdates is 1 [root@ESXi01:~] esxcfg-advcfg -s 0 /vSAN/IgnoreClusterMemberListUpdates Value of IgnoreClusterMemberListUpdates is 0
#>> Disable perf service on vcsa rvc tool.
/localhost/Datacenter/computers/vSAN> vsan.perf.stats_object_delete . Deleting vSAN Stats DB object, which will stop vSAN Performance Service ... Task: Disable vSAN performance service New progress: 1% New progress: 50% Task result: success
#>> Delete the .vsan.stats object on any host
~] esxcli vsan debug object list --all | grep -B1 "Directory Name: .vsan.stats" Group UUID: d705ca6a-0775-ddc8-dddf-005056a9f8db Directory Name: .vsan.stats -- Group UUID: 1821ca6a-6d36-6dd1-c2e0-005056a9fb41 Directory Name: .vsan.stats
