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  • 1.  Datastore not showing up even though iSCSI drive exists

    Posted Sep 01, 2023 02:22 PM

    Right now, I have a VMFS5 datastore that seems to be fine but not showing on a datastore volume in the web or shell of ESXi 6.7 or 7.0. ESXi doesn't seem 

    I'm running a ESXi vSphere standalone (free-license) connected to an iSCSI TrueNAS Core SAN target. My setup has been working fine for a while. It had to shutdown for a while and the network moved without being changed. 

    I've got other datastores are  running fine on the same iSCSI path, except one datastore. It is VMFS5 datastore. I'm planning to upgrade it to VMFS6 once I can verify it working. I can see the iSCSI path and iSCSI block device in question on the both the ESXi 6.7 AND 7.0 servers. To me this looked like an VMFS format issue. So I ran voma  to check for VMFS issues, but it came back clean.

    [root@esxi-load-1:~] voma -m vmfs -f fix -d /vmfs/devices/disks/naa.6589cfc0000009d4c01e29044bea4552
    Running VMFS Checker version 2.1 in fix mode 
    Initializing LVM metadata, Basic Checks will be done 

    Checking for filesystem activity
    Performing filesystem liveness check..\Scanning for VMFS-3/VMFS-5 host activity (512 bytes/HB, 2048 HBs).
    Phase 1: Checking VMFS header and resource files 
    Detected VMFS file system (labeled:'DS-Prod-Thundbolt') with UUID:58861456-db2c63c8-bfc7-d4bed9b3be27, Version 5:61
    Phase 2: Checking VMFS heartbeat region 
    Phase 3: Checking all file descriptors. 
    Phase 4: Checking pathname and connectivity. 
    Phase 5: Checking resource reference counts. 

    Total Errors Found: 0
    Total Errors Fixed: 0 
    Total Partially Fixed errors: 0

    Any ideas of what this could be?



  • 2.  RE: Datastore not showing up even though iSCSI drive exists

    Posted Sep 01, 2023 02:26 PM

    I've already looked at https://kb.vmware.com/s/article/2150992 and it isn't my use case. I have datastores on the same iSCSI path that are working fine. 

     



  • 3.  RE: Datastore not showing up even though iSCSI drive exists
    Best Answer

    Posted Sep 01, 2023 02:43 PM

    Check to make sure it's not being recognised as a snapshot

    SSH into a host and used this command to find if it a snapshot

     "esxcli storage vmfs snapshot list"

    This will return the Volume name and a VMFS UUID 

    Then using the UUID you can mount it using this command

    esxcfg-volume -M "vmfs uuid"



  • 4.  RE: Datastore not showing up even though iSCSI drive exists

    Posted Sep 01, 2023 03:13 PM

    Thank you! I've been fighting this issue for on-and-off for about 2 weeks. I was praying that this wasn't a case of silent corruption. This VM is a pain the butt to restore.