Category: backup

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‘The IO operation at logical block address was retried’ on Hyper-V 2012 R2 guest

Luis JohnstoneLeave a Comment on ‘The IO operation at logical block address was retried’ on Hyper-V 2012 R2 guest

I’ve recently been working a lot with Microsoft’s backup solution and part of the System Center 2012 R2 suite: Data protection Manager 2012 R2. I will likely post some architecture and hands-on experience posts in the very near future but for now I want to share an experience I had after I migrated my DPM […]

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Ubuntu to CentOS rsync errors with chgrp Operation not permitted (1)

luis.johnstone7 Comments on Ubuntu to CentOS rsync errors with chgrp Operation not permitted (1)

When running rsync to backup from a ZFS volume on my primary Ubuntu server to a backup server running Centos I was getting non-fatal errors like this: rsync: chgrp “/DISK2_BACKUP/mnt/share4/vmshare/” failed: Operation not permitted (1) My rsync commandlines have the following format: rsync -avr –delete –progress /DISK2/vmshare/ /mnt/share4/vmshare/ The key flag in that commandline is […]