Posts
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ATA SMART in libblockdev and UDisks
For a long time there was a need to modernize the UDisks’ way of ATA SMART data retrieval. The ageing libatasmart project went unmaintained over time yet there was no other alternative available. There was the smartmontools project with its
smartctlcommand whose console output was rather clumsy to parse. It became apparent we need to decouple the SMART functionality and create an abstraction. -
Partitioning with Ansible Storage Role: Partitions
The storage role always allowed creating and managing different storage technologies like LVM, LUKS encryption or MD RAID, but one technology seemed to be missing for a long time, and surprisingly, it was the most basic one, the actual partitioning. Support for partition management was always something that was planned for the storage role, but it was never a high priority. From the start, the role could create partitions. When creating a more complex storage setup on an empty disk, for example creating a new LVM volume group or adding a new physical volume to an existing LVM setup, the role would always automatically create a single partition on the disk. But that was all the role could do, just one single partition spanning the entire disk.
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Partitioning with Ansible Storage Role: VDO
This time we shall talk about Storage Role support of VDO. The abbreviation stands for Virtual Data Optimizer and that is exactly what it does. It reduces stored data size to save space. To be precise Storage Role utilizes LVM version of VDO called (what a surprise) LVM VDO.
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