Sidebar
public:announcement:ahsay_upgrade_advisory_26818
This is an old revision of the document!
Table of Contents
Ahsay Upgrade Advisory (#26812) – Critical Issue with AhsayOBM v8 Microsoft Hyper-V backup
We have recently confirmed a critical issue related to virtual machine backups:
- On Hyper-V 2008 R2/2012/2012 R2, due to a bug with the CBT (Change Block Tracking) filter.
- On Hyper-V 2016, due to bug in the handling of RCT (Resilient Change Tracking) data.
Because of these issues, the change tracking data is no longer reliable for incremental backups. All Hyper-V virtual machines backups taken using AhsayOBM v8.3.2.11 are no longer restorable.
What are the affected AhsayOBM versions?
- AhsayOBM v8.3.2.11
What are the affected Hyper-V versions?
- Hyper-V 2008 R2
- Hyper-V 2012 and 2012 R2
- Hyper-V 2016
What action do I need to take to fix this problem?
Partners are strongly advised to immediately:
- Upgrade all affected clients to AhsayOBM v8.3.6.30 or above.
- After upgrading to AhsayOBM v8.3.6.30 or above, the first backup job run a differential backup.
If your current version is not AhsayCBS v8.3.6.30 or above, then upgrade your AhsayCBS to the latest version first. Please refer to these KB article for upgrade instructions:
What if my maintenance has already expired? How do I upgrade?
Stop! Do not upgrade until you contact a member our Sales team sales-kb@ahsay.com for assistance with your maintenance renewal.
What if I require assistance with my AhsayCBS server upgrade?
Our professional service team is ready to provide immediate assistance to partners with AhsayCBS v8 upgrades.
Please contact a member our Sales team sales-kb@ahsay.com to obtain a quotation for the AhsayCBS upgrade service.
public/announcement/ahsay_upgrade_advisory_26818.1602666449.txt.gz · Last modified: 2020/10/14 17:07 by ronnie.chan