Troubleshooting VMFS issues

VMFS is a high performance distributed filesystem. VMFS version 5 supports up to 60 TB of file size. Here are some important guidelines you should consider when working with VMFS volumes:

  • If you are not able to store files from 2 TB to 60 TB, make sure the partition table is using GPT instead of MBR. You can use partedUtil to view the partitioning.
  • The free space threshold value of a VMFS as suggested by VMware is 200 MB, and once 100 MB space is left, you will start having problems.
  • Always watch carefully how your space grows on a VMFS volume; if you have a less space, it will likely cause slow performance in issuing commands such as ls, copy, and so on.
  • Don't leave snapshots too long, and keep reclaiming the space by ...

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