Although it only affects a handful of users, users are encouraged to upgrade to the latest DSM 6.1.3 update 4 and conduct RAID scrubbing to avoid running into this issue. I reinstalled my nas in version 6.1.3 update 3 and no more issue at the moment.īeside the usual security issues there might be a good reason to use update 4Īn open source issue that’s prone to affect data integrity in rare situations has been identified. Owners with the following models should upgrade their models to the DSM 6.1.3 update 4 as soon as possible:ĭid anyone RAID scrub after update following this email? By calling to the attention of the mass community, we seek to join forces with influencers in the field in delivering continuous contribution on data integrity and data protection. In addition, as a vibrant supporter of Open Source, Synology has reported this issue to the Community. Keeping user information safe has always been our priority. Synology is committed to high standards of data protection and safety. Synology team moved quickly to identify and reproduce the issue, which is resolved in the latest DSM 6.1.3 update. This open source feature contains a slight design fault that may lead to potential data corruption after a RAID array is repaired from degrade mode. In-house investigation revealed the issue stems from Linux feature known as skip_copy. The issue was brought to our attention a few weeks ago when the NAS communities discussed the potential data integrity threat that may occur after a RAID 5 repair.
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