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fstrim を使用してシンプロビジョニングされた LUN 内のスペースを再利用する方法

Solution In Progress - Updated -

Issue

  • df コマンドでデバイスに空き領域があることが示されていても、シンプロビジョニングされた LUN は割り当てエラーを返します。
kernel: blk_update_request: critical space allocation error, dev sdb, sector 426379264
kernel: blk_update_request: critical space allocation error, dev dm-2, sector 426379264
kernel: sd 12:0:2:1: [sdh] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
kernel: sd 12:0:2:1: [sdh] tag#0 Sense Key : Data Protect [current]
kernel: sd 12:0:2:1: [sdh] tag#0 Add. Sense: Space allocation failed write protect
kernel: sd 12:0:2:1: [sdh] tag#0 CDB: Write(10) 2a 00 16 9d a1 90 00 00 08 00
kernel: blk_update_request: critical space allocation error, dev sdh, sector 379429264
kernel: sd 11:0:3:1: [sdd] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
kernel: sd 11:0:3:1: [sdd] tag#0 Sense Key : Data Protect [current]
kernel: sd 11:0:3:1: [sdd] tag#0 Add. Sense: Space allocation failed write protect

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • シンプロビジョニングされた LUN
  • LVM2

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