Dedupcation only keeps a single instance of redundant data on the storage (must be sequential device). The advantage is to save space (= save money, TSM license is not cheap). But it also brings in some disadvantages, e.g it requires 16G memory as minimum, adds more system load, increase the database size significantly (4-5 times).  … Continue reading TSM 6.3: Setup the Deduplication →

Benefit of using TSM for VE: Simplify management of the backup and restore process for virtual machines Utilize VMware’s vStorage APIs for Data Protection, including block-level incremental backups based on VMware’s Changed Block Tracking Offload the backup workload from virtual machines to vStorage backup servers Provides flexible recovery options—file, volume and image—from a single-pass backup … Continue reading TSM 6.3 for Virtual Environment References →

ISSUE: CAUSE: The TSM VM backup process uses the VMware vSphere API to get the DNS information from VMware tools running on the guest operating system. If the full DNS has not been set correctly on the guest OS, Tivoli Storage Manager will be unable to process the machine correctly. In my case, the Virtual … Continue reading TSM 6.3: Virtual Machine Could Not be Found on VMware Server →

ISSUE: TSM failed to incremental backup a VM, it ran a full backup instead. CAUSE: The CBT (Changed Block Tracking) feature is set to off in the VM settings Run ‘show vm all’ in dsm client console to confirm the settings - changeTracking: Off SOLUTION: Connect to VCenter and right click the target VM, then … Continue reading TSM 6.3: VMware Incremental Backup Failed →

ISSUE: CAUSE: The CadSchedName value is missing in the Client Acceptor registry settings. HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\TSM Client Acceptor\Parameters\CadSchedName SOLUTION: C:\Program Files\Tivoli\TSM\baclient\DSMCUTIL UPDATE CAD /NAME:"name of cad service" /CADSCHEDNAME:"name of scheduler service controlled by the CAD service"