linux - Find least usage drive across all Stornext mounted drives before write any content -


requirement: 6 san / stornext drive volumes(equal in size - 100tb each) mounted linux server.

10 applications 100+ read/write operations possible concurrently.

trying write centralized service component(volume administration service) decide best drive perform before write operations. balance load content across drives.

my approach:

  • check disk usage of each volume

  • reserve xxxx mb each request volume

  • decide least capacity volume after adding reserved volume size + actual disk usage of volume

  • release reserved volume volume starts writing.

caveat:

  • reserve xxxx mb may not provide calculate accurate size when concurrent write operations.

  • it's feed contents unsure of size on write operations.


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