一昨日の昼間に，当サーバーが，ディスク関係のエラーを大量に出して，システムダウンしました．<\/p>\n
電源リセットした後は正常に動いています．どうも，前夜にいろいろ仮想マシンをいじっていて，仮想マシンのリストから外付けディスクを削除しないまま，物理的に削除したのが原因だったのではないかと推測しています．<\/p>\n
問題のドライブはUSB接続だったので，ホスト的にはマウントしてないことを確認しておけば，unplugしていいのですが，動いている仮想マシンでは，マウントしていなくても，IDEかSCSIドライブとして認識していて，hot-(un)plugには対応してなかったようです．このため，IO関係の何かがたまって^^; ホストのIO関係を何してしまったようです．<\/p>\n
とはいえ，新しいMain boardなので，ハード関係のエラーの可能性はないとは言いきれないので，しばらくは監視を強めようと思います．<\/p>\n","protected":false},"excerpt":{"rendered":"
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