{"id":27990,"date":"2025-11-27T21:23:46","date_gmt":"2025-11-27T12:23:46","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=27990"},"modified":"2025-11-27T21:23:46","modified_gmt":"2025-11-27T12:23:46","slug":"m4-mac-mini%e3%81%a7%e3%83%97%e3%83%81%e3%83%95%e3%83%aa%e3%83%bc%e3%82%ba%e9%a0%bb%e7%99%ba-7-%e3%80%9csnap-shot%e3%81%8c%e5%8e%9f%e5%9b%a0%e3%80%9c","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=27990","title":{"rendered":"M4 Mac mini\u3067\u30d7\u30c1\u30d5\u30ea\u30fc\u30ba\u983b\u767a (7) \u301cSnap Shot\u304c\u539f\u56e0\u301c"},"content":{"rendered":"\n

11月23日にクリーンインストールして，SSDの速度は復活<\/a>しましたが，4日経過した今日になってまた低下してしまいました．<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

クリーンインストールしたら復帰してしばらく使うと低下．それはTime MachineのSnap ShotがSSDの容量を圧迫しているからに違いない．ようやく原因が見えたようです．<\/p>\n\n\n\n

さっそくディスクユーティリティでSnap Shotを全部削除したところ，復活しました．<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

めでたしめでたし．<\/p>\n\n\n\n

Time Machineは外付けの3TB HDDに取るようにしているのでそれで十分なので，Snap Shotを撮らないようにしたいのですが，そういう設定は現状ではないようです．仕方ないので当分は週一くらいでSnap Shotを消すようにします．<\/p>\n\n\n\n

このようにSSDの速度低下については，はっきりしました．しかしプチフリーズについては原因がSSDの速度低下だろうというのはそれらしい推測ではありますが，確実ではありません．なにより，最初に1週間空けて3回生じたプチフリーズはその後発生していないのです．<\/p>\n\n\n\n

しばらくは前述のように定期的にSnap Shotを削除しながら様子を見たいと思います．<\/p>\n","protected":false},"excerpt":{"rendered":"

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