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タイトル
NM: Migration Log Reports BTNotesGetAttachment: Size of attachment 'attname' exceeds size limit -
説明
NM: Migration Log Reports BTNotesGetAttachment: Size of attachment 'attname' exceeds size limit -
対策
Issue
The Notes Migrator migration log for an account contains notification lines for attachments exceeding size limits and being removed.
For example the below lines can be seen in the migration log:
BTNotesGetAttachment: Size of attachment 'abdcef.pdf' exceeds size limit (9 MB versus 5 MB limit)BTNotesFilterAttachment: Size of attachment 'abdcef.pdf' exceeds size limit (9 MB versus 5 MB limit), removing attachmentOrBTNotesGetAttachment: Size of attachment 'abdcef.pdf' exceeds size limit (9 MB versus 0 MB limit)
BTNotesFilterAttachment: Size of attachment 'abdcef.pdf' exceeds size limit (9 MB versus 0 MB limit), removing attachment
CauseThis log notification is by design and refers to the large attachment processing in Notes Migrator, it is not an error notification.
The attachment is processed through a different method in these cases with the file being detached from the message during migration and then being re-attached to the resulting migrated message.
This notification does not indicate that an attachment was not migrated, only that it was treated as a large attachment and migrated outside the MIME Stream conversion.The size limit for the large attachment processing is controlled on the Notes Migrator Settings on the Other Settings tab as the "Process attachments greater than x MB" option.Additional InformationFor Notes Migrator 4.6.x version this setting is defaulted to 5MB.For Notes Migrator 5.0.x versions (and higher) this setting is defaulted to 0MB to process all attachments with this method. Setting to -1MB can be used to disable the functionality completely but this is not recommended.The large attachment processing will treat embedded items such as images as attachments in Outlook if these exceed the size limit set.
These would be items such as icons in signatures or embedded images. In cases where the embedded item is lower than the size limit there will be no impact on the item and it will be migrated as it is in source.There is no noticeable change in the migrated messages with this setting for attached items in Notes and these will be migrated as attachments in Outlook.The settings value can be increased or decreased as needed but it is generally recommended to keep this at the default as this is the most effective processing method.Should this need to be changed, setting this between 2MB and 5MB would be generally recommended and not to exceed 25MB as that reduces the effectiveness of the setting.This setting is intended to cover situations where migrations may be failing due to "Out of memory" errors during processing and also to handle cases where messages are migrated as RTF directly (eg invalid TNEF Conversions in Domino).
Note: The migration profile does have limits for maximum attachment sizes on the destination options tab. This setting is not intended to replace those limits.