Storage of differences in individual files on a file system that can occupy Snapshot is created by adding new sector ranges. The size of the storage for changes can be increased after the This allows to implement incremental and differential backups.Īn arbitrary range of sectors on any block device can be used to store Which blocks were changed during the time between the last snapshotĬreated and any of the previous snapshots of the same generation. Purpose of such snapshots is to create a backup of block devices.Ī snapshot is created simultaneously for several block devices, ensuringĪ change tracker is implemented in the module. It allows to create non-persistent snapshots of any block devices. ![]() I suggest a modified version of the blksnap kernel module for consideration. ![]() To: axboe, linux-block, linux-kernel, hch, sergei.shtepa ![]() ` (16 more replies) 0 siblings, 17 replies 22+ messages in threadįrom: Sergei Shtepa 15:50 UTC ( / raw) 15:50 ` block, bdev_filter: enable block device filters Sergei Shtepa Blksnap - creating non-persistent snapshots for backup LKML Archive on help / color / mirror / Atom feed * blksnap - creating non-persistent snapshots for backup 15:50 Sergei Shtepa
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