This week at LWN: Linux and object storage devices
The btrfs filesystem is widely regarded as being the long-term future choice for Linux. But what if btrfs is taking the wrong direction, fighting an old war? If the nature of our storage devices changes significantly, our filesystems will have to change as well. A lot of attention has been paid to the increasing prevalence of flash-based devices, but there is another upcoming technology which should be planned for: object storage devices (OSDs). The recent posting of a new filesystem called osdfs provides a good opportunity to look at OSDs and how they might be supported under Linux.
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