diff --git a/app/models/amazon_backup.rb b/app/models/amazon_backup.rb
deleted file mode 100644
index fb0a72960..000000000
--- a/app/models/amazon_backup.rb
+++ /dev/null
@@ -1,159 +0,0 @@
-# donmai.us specific
-
-require 'base64'
-require 'digest/md5'
-
-class AmazonBackup < ApplicationRecord
-  def self.last_id
-    first.last_id
-  end
-
-  def self.update_id(new_id)
-    first.update_column(:last_id, new_id)
-  end
-
-  def self.restore_from_glacier(min_id = 1_431_595, max_id = 2_000_000)
-    credentials = Aws::Credentials.new(Danbooru.config.aws_access_key_id, Danbooru.config.aws_secret_access_key)
-    Aws.config.update({
-      region: "us-east-1",
-      credentials: credentials
-    })
-    client = Aws::S3::Client.new
-    bucket = Danbooru.config.aws_s3_bucket_name
-
-    f = lambda do |key|
-      begin
-        client.restore_object(
-          bucket: bucket,
-          key: key,
-          restore_request: {
-            days: 7,
-            glacier_job_parameters: {
-              tier: "Bulk"
-            }
-          }
-        )
-      rescue Aws::S3::Errors::InternalError
-        puts "  internal error...retrying"
-        sleep 30
-        retry
-      rescue Aws::S3::Errors::InvalidObjectState
-        puts "  already restored #{key}"
-      rescue Aws::S3::Errors::NoSuchKey
-        puts "  missing #{key}"
-        file_path = "/var/www/danbooru2/shared/data/#{key}"
-
-        if File.exists?(file_path)
-          base64_md5 = Digest::MD5.base64digest(File.read(file_path))
-          body = open(file_path, "rb")
-          client.put_object(bucket: bucket, key: key, body: body, content_md5: base64_md5, acl: "public-read")
-          puts "  uploaded"
-        end
-      rescue Aws::S3::Errors::RestoreAlreadyInProgress
-        puts "  already restoring #{key}"
-      end
-    end
-
-    Post.where("id >= ? and id <= ?", min_id, max_id).find_each do |post|
-      if post.has_large?
-        puts "large:#{post.id}"
-        key = "sample/" + File.basename(post.large_file_path)
-        f.call(key)
-      end
-
-      if post.has_preview?
-        puts "preview:#{post.id}"
-        key = "preview/" + File.basename(post.preview_file_path)
-        f.call(key)
-      end
-
-      puts "#{post.id}"
-      key = File.basename(post.file_path)
-      f.call(key)
-    end
-  end
-
-  def self.copy_to_standard(min_id = 1_191_247, max_id = 2_000_000)
-    credentials = Aws::Credentials.new(Danbooru.config.aws_access_key_id, Danbooru.config.aws_secret_access_key)
-    Aws.config.update({
-      region: "us-east-1",
-      credentials: credentials
-    })
-    client = Aws::S3::Client.new
-    bucket = Danbooru.config.aws_s3_bucket_name
-
-    f = lambda do |key|
-      begin
-        client.copy_object(bucket: bucket, key: key, acl: "public-read", storage_class: "STANDARD", copy_source: "/#{bucket}/#{key}", metadata_directive: "COPY")
-        puts "  copied #{key}"
-      rescue Aws::S3::Errors::InternalError
-        puts "  internal error...retrying"
-        sleep 30
-        retry
-      rescue Aws::S3::Errors::InvalidObjectState
-        puts "  invalid state #{key}"
-      rescue Aws::S3::Errors::NoSuchKey
-        puts "  missing #{key}"
-      end
-    end
-
-    Post.where("id >= ? and id <= ?", min_id, max_id).find_each do |post|
-      next unless post.has_preview?
-
-      if post.has_preview?
-        puts "preview:#{post.id}"
-        key = "preview/" + File.basename(post.preview_file_path)
-        f.call(key)
-      end
-
-      if post.has_large?
-        puts "large:#{post.id}"
-        key = "sample/" + File.basename(post.large_file_path)
-        f.call(key)
-      end
-
-      puts "#{post.id}"
-      key = File.basename(post.file_path)
-      f.call(key)
-    end
-  end
-
-  def self.execute
-    return false unless Danbooru.config.aws_s3_enabled?
-    
-    last_id = AmazonBackup.last_id
-    credentials = Aws::Credentials.new(Danbooru.config.aws_access_key_id, Danbooru.config.aws_secret_access_key)
-    Aws.config.update({
-      region: "us-east-1",
-      credentials: credentials
-    })
-    logger = Logger.new(STDOUT)
-    client = Aws::S3::Client.new(logger: logger)
-    bucket = Danbooru.config.aws_s3_bucket_name
-
-    Post.where("id > ?", last_id).limit(1000).order("id").each do |post|
-      if File.exists?(post.file_path)
-        base64_md5 = Digest::MD5.base64digest(File.read(post.file_path))
-        key = File.basename(post.file_path)
-        body = open(post.file_path, "rb")
-        client.put_object(bucket: bucket, key: key, body: body, content_md5: base64_md5, acl: "public-read")
-      end
-
-      if post.has_preview? && File.exists?(post.preview_file_path)
-        key = "preview/#{post.md5}.jpg"
-        body = open(post.preview_file_path, "rb")
-        client.put_object(bucket: bucket, key: key, body: body, acl: "public-read")
-      end
-
-      if File.exists?(post.large_file_path)
-        key = "sample/#{Danbooru.config.large_image_prefix}#{post.md5}.#{post.large_file_ext}"
-        body = open(post.large_file_path, "rb")
-        client.put_object(bucket: bucket, key: key, body: body, acl: "public-read")
-      end
-
-      AmazonBackup.update_id(post.id)
-    end
-  rescue Exception => x
-    # probably some network error, retry next time
-  end
-end