Missed files after the backup - file system ext4
Hello,
I noticied some files are not being backed up for an ext4's file system.
when I list the directory and match with the bplist command it shows me a difference up to 15-20 files.
I found something interesting related to virtual boxes:
Has anyone seen this before? The backups are finish good and I already sent a lot of logs to the support.
Regards
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The Linux ext4 file system includes a persistent pre-allocation feature, to guarantee disk space for files without padding the allocated space with zeros. When NetBackup restores a pre-allocated file (to any supported ext file system), the file loses its preallocation and is restored as a sparse file.
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To migrate an ext2 or ext3 file system to ext4: See the instructions under Converting an ext3 file system to ext4 on the following page of the Ext4 wiki:
https://ext4.wiki.kernel.org/index.php/Ext4_Howto#Converting_an_ext3_filesystem_to_ext4
If you do not follow these instructions, data in a newly created ext4 file is not promptly flushed from memory to disk. As a result, NetBackup cannot back up the data of recently created files in the ext4 file system. (The NetBackup snapshot captures the file as zero length.) As a workaround for the file systems that were not correctly migrated, note: Run the Linux sync command on the ext4 file system before starting each backup.
Hello,
After having 3 weeks of log. Suppor realized we would need to include a schedule full during the weekends to let netbackup knows the files were changed.
Thank you to everybody for every input.
