NDMP バックアップに時間がかかります
環境
- ONTAP 9
- NDMP 3 ウェイ
- DMA （データ管理アプリケーション）
- パフォーマンス
問題
- Backup サーバを使用したボリュームバックアップのいずれかでバックアップが低速になりました
- 調査後、 NDMP の 3 ウェイバックアップはすべてフェーズ 3 および 4 で低速になります。
Mon Jul 26 18:00:53 SAST 202 /<vserver>/Abrasives/(4) Log_msg (Phase 3 throughput (MB sec): read 1 write 5
Mon Jul 26 18:00:53 SAST 202 /<vserver>/Abrasives/(4) Log_msg (Phase 4 throughput (MB sec): read 0 write 3
Mon Jul 26 18:01:49 SAST 202 /<vserver>/Tech_and_Spec/(2) Log_msg (Phase 3 throughput (MB sec): read 3 write 6
Mon Jul 26 18:01:49 SAST 202 /<vserver>/Tech_and_Spec/(2) Log_msg (Phase 4 throughput (MB sec): read 2 write 3
Mon Jul 26 18:02:31 SAST 202 /<vserver>/R_and_D/(3) Log_msg (Phase 3 throughput (MB sec): read 4 write 8
Mon Jul 26 18:02:31 SAST 202 /<vserver>/R_and_D/(3) Log_msg (Phase 4 throughput (MB sec): read 2 write 3
Mon Jul 26 19:22:51 SAST 202 /<vserver>/Home/(1) Log_msg (Phase 3 throughput (MB sec): read 1 write 6
Mon Jul 26 19:22:51 SAST 202 /<vserver>/Home/(1) Log_msg (Phase 4 throughput (MB sec): read 3 write 3
Tue Jul 27 18:00:53 SAST 202 /<vserver>/Abrasives/(3) Log_msg (Phase 3 throughput (MB sec): read 1 write 7
Tue Jul 27 18:00:53 SAST 202 /<vserver>/Abrasives/(3) Log_msg (Phase 4 throughput (MB sec): read 0 write 3
Tue Jul 27 18:02:40 SAST 202 /<vserver>/R_and_D/(4) Log_msg (Phase 3 throughput (MB sec): read 4 write 8
Tue Jul 27 18:02:40 SAST 202 /<vserver>/R_and_D/(4) Log_msg (Phase 4 throughput (MB sec): read 2 write 3
Tue Jul 27 18:07:27 SAST 202 /<vserver>/Tech_and_Spec/(2) Log_msg (Phase 3 throughput (MB sec): read 6 write 11
Tue Jul 27 18:07:27 SAST 202 /<vserver>/Tech_and_Spec/(2) Log_msg (Phase 4 throughput (MB sec): read 3 write 3
Tue Jul 27 19:38:01 SAST 202 /<vserver>/Home/(1) Log_msg (Phase 3 throughput (MB sec): read 1 write 6
Tue Jul 27 19:38:01 SAST 202 /<vserver>/Home/(1) Log_msg (Phase 4 throughput (MB sec): read 3 write 3
NULL へのダンプ速度は正常です :
Tue Jul 27 16:42:09 SAST 202 /vol/Data/(1) Log_msg (Phase 3 throughput (MB sec): read 22 write 39
Tue Jul 27 16:42:09 SAST 202 /vol/Data/(1) Log_msg (Phase 4 throughput (MB sec): read 241 write 241