メインコンテンツまでスキップ

ボリュームがフルになったためにTridentのプロビジョニングLUNがオフラインになる

環境

  • トライデント
  • SAN

問題

  • Linux で重大なスペース割り当てエラーが報告される:

LINUX kernel: blk_update_request: critical space allocation error, dev xxx

LINUX kernel: blk_update_request: critical space allocation error, dev xxx

  • Data ONTAPがTridentボリューム(ONTAP-SANバックエンド)がいっぱいであることを示すアラートを送信

ed Jan 24 13:33:22 +0800 [wafl_exempt13: wafl.vol.full:alert]: Insufficient space on volume c1_san_ssd_dc1_pvc_19a8fa1a_b8f1_4cd9_9fb8_xxxx@vserver:0b2a7d0a-0441-11ee-a219-xxxxxxxxxxx to perform operation. 72.0KB was requested but only 8.00KB was available.

  • ボリュームとLUNは、以下のルールに従ってTridentから自動的に提供されます。

ONTAP SANの設定オプションと例

合計ボリュームサイズ=[(PVC要求サイズ)/(1-(snapshotReserveパーセンテージ)/100)]* 1.1

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