Comments on: Restore MySQL databases from a hard drive backup http://solutions.treypiepmeier.com/2007/05/05/restore-mysql-databases-from-a-hard-drive-backup/ So I don't have to figure things out more than once. Tue, 30 Sep 2008 23:44:19 +0000 http://wordpress.org/?v=2.6.2 By: Trey http://solutions.treypiepmeier.com/2007/05/05/restore-mysql-databases-from-a-hard-drive-backup/#comment-5096 Trey Mon, 13 Aug 2007 11:09:55 +0000 http://solutions.treypiepmeier.com/2007/05/05/restore-mysql-databases-from-a-hard-drive-backup/#comment-5096 <p>The reason I needed to do this was that I was recovering from a hard drive crash. I would normally use dumps. I haven't noticed anything awry after doing this, but I know it's a bad idea.</p> The reason I needed to do this was that I was recovering from a hard drive crash. I would normally use dumps. I haven’t noticed anything awry after doing this, but I know it’s a bad idea.

]]> By: Jon Maddox http://solutions.treypiepmeier.com/2007/05/05/restore-mysql-databases-from-a-hard-drive-backup/#comment-5088 Jon Maddox Mon, 13 Aug 2007 06:42:39 +0000 http://solutions.treypiepmeier.com/2007/05/05/restore-mysql-databases-from-a-hard-drive-backup/#comment-5088 <p>Always use dumps, if you're using InnoDB tables you'll be in a world of hurt if you try to back up this way. And I only know this from experience, heh.</p> <p>MyISAM might be able to back up this way but InnoDB uses a keyed table of some sort that somehow is married to your machine/install or SOMETHING. I'm no expert, i just know i was screwed by backing up this way.</p> <p>For the record, Rails migrations will create InnoDB tables by default. And if you need DB transactions, InnoDB is your only choice. MyISAM tables do not support transactions.</p> Always use dumps, if you’re using InnoDB tables you’ll be in a world of hurt if you try to back up this way. And I only know this from experience, heh.

MyISAM might be able to back up this way but InnoDB uses a keyed table of some sort that somehow is married to your machine/install or SOMETHING. I’m no expert, i just know i was screwed by backing up this way.

For the record, Rails migrations will create InnoDB tables by default. And if you need DB transactions, InnoDB is your only choice. MyISAM tables do not support transactions.

]]> By: JTJ http://solutions.treypiepmeier.com/2007/05/05/restore-mysql-databases-from-a-hard-drive-backup/#comment-2793 JTJ Sun, 06 May 2007 05:14:51 +0000 http://solutions.treypiepmeier.com/2007/05/05/restore-mysql-databases-from-a-hard-drive-backup/#comment-2793 <p>I've read that if you make backup copies of your MySQL data files while the MySQL server is running, there will be errors in your backup copies. Use dumps when possible.</p> I’ve read that if you make backup copies of your MySQL data files while the MySQL server is running, there will be errors in your backup copies. Use dumps when possible.

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