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14:15:05 +0000: Processing Virtual SAN proactive rebalance on host. Start the proactive rebalance - vsan.proactive_rebalance -s 0 //jor-lab/computers> vsan.proactive_rebalance -s 0 Max usage difference triggering rebalancing: 30.00% 14:14:27 +0000: Retrieving proactive rebalance information from host. Start and Stop proactive rebalances (RVC – vCenter) //jor-lab/computers> vsan.proactive_rebalance_info 0 vms/Discovered\ virtual\ machine 0Ĭreating one VM per host. Testing Virtual SAN functionality – deploying VMs – (RVC – vCenter) /localhost/jor-lab/computers> diagnostics.vm_create -ĭatastore. | Components | 3% used (11687 available) | 3% used (8687 available) | | Resource | Usage right now | Usage after failure/re-protection | localhost/jor-lab/computers> vsan.whatif_host_failures 0 RVC command vsan.whatif_host_failures helps to know if there are the sufficient amount of resources by simulating a host failure, make sure to connect to your vCenter-RVC. VSANUUID: 5227c17e-ec64-de76-c10e-c272102beba7ĭetermine if there are enough reources remaining in the cluster to rebuild by simulating a host failure scenario (RVC – vCenter) Run the command vdq –qH and search for IsPDL? if the value is equal to 1 the device is in PDL state. Something is not right… (missing disks) Mappings:įind devices that are in PDL state (Hosts) Verify which devices from a particular host are in which disk groups (Hosts) :~] vdq -iH If you find objects on state 13 or 15, you better contact VMware ASAP to see if they can be recovered.ĭisk Balance Test (Hosts) esxcli vsan health cluster get -t "vSAN Disk Balance"Ī balanced scenario vSAN Disk Balance greenĪ not balanced scenario vSAN Disk Balance yellowġ72.16.11.246 Local TOSHIBA Disk (naa.50000398b821a7c5) Proactive rebalance is in progress 420.5244 GB
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Replace the stage number to filter out the results per state, for example, here are the two inaccessible objects: cmmds-tool find -f python | grep CONFIG_STATUS -B 4 -A 6 | grep 'uuid\|content' | grep 'state\\\": 13' -B 1 | grep uuid | cut -d "\"" -f4 Good state: 2 state\": 13 -inaccessible objectsįind the UUID of the healhty ( state 7), inaccessible objects ( state 13) and absent/degraded ( stage 15). Pending resync operation: ba8d625b-6457-b3ac-6da9-e4434b016608: 212.125 GiBĬheck the state of the components (Hosts) cmmds-tool find -f python | grep CONFIG_STATUS -B 4 -A 6 | grep 'uuid\|content' | grep -o 'state\\\":\ *' | sort | uniq -c
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Sub-Cluster Membership UUID: 80757454-2e11-d20f-3fb0-001b21168828Ĭheck if there are ongoing/stuck resync operations (hosts) while true do echo " ****************************************** " echo "" > /tmp/resyncStats.txt cmmds-tool find -t DOM_OBJECT -f json |grep uuid |awk -F \" '') echo "Total: $total GiB" |tee -aa /tmp/resyncStats.txt total=$(cat /tmp/resyncStats.txt |grep Total) totalObj=$(cat /tmp/resyncStats.txt|grep -vE " 0 GiB|Total"|wc -l) echo "`date +%Y-%m-%dT%H:%M:%SZ` $total ($totalObj objects)" > /tmp/totalHistory.txt echo `date ` sleep 60 done
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What a full 4-node cluster looks like ( no partition) ~ # esxcli vsan cluster get What a single partitioned node looks like: ~ # esxcli vsan cluster get Identify a partitioned node from a VSAN Cluster (Hosts) Hope you are doing all great, for today’s post I wanted to put together some of the commands/troubleshootings I’ve had used with VMware vSAN,