Hello, What's the current status of Linux device mapper integrity (checksumming) features? iirc bio integrity extensions were integrated into Linux 2.6.27, but those are only usable for SCSI disks that provide 520-bytes per sector support and also have the hardware support for verifying the checksums, correct? Or then you need to have a HBA or RAID-adapter with integrity support.. (bio integrity patches: http://kerneltrap.org/mailarchive/linux-kernel/2008/6/7/2056354) Is it possible to use 'normal' 512-bytes per sectors disks, and store the checksums on them, and calculate/verify the checkcums in software in device mapper.. this obviously gives you a bit less usable space, but would be suitable for sw-raid scenarios. I guess that sounds pretty much like dm-csum: https://patchwork.kernel.org/patch/25245/ What's the status of all this nowadays? Thanks! -- Pasi -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
