diff --git a/dRAID-HOWTO.md b/dRAID-HOWTO.md index 15842be..e9e6b91 100644 --- a/dRAID-HOWTO.md +++ b/dRAID-HOWTO.md @@ -28,7 +28,7 @@ Parity declustering (the fancy term for shuffling drives) has been an active res First get the code [here](https://github.com/zfsonlinux/zfs/pull/5841), build spl and zfs with _configure --enable-debug_, and install. Then load the zfs kernel module with the following options: * zfs_vdev_raidz_impl="original": This option is **required** for correctness. The dRAID code uses the raidz parity functions (generation, and reconstruction) but needs a small change. Currently the change has been made only to the original raidz parity functions, i.e. not the new HW-accelerated ones, so this option is required for now. -* zfs_vdev_scrub_min_active=8 zfs_vdev_scrub_max_active=10 zfs_vdev_async_write_min_active=8: These options help dRAID rebuild performance. +* zfs_vdev_scrub_min_active=2 zfs_vdev_scrub_max_active=10 zfs_vdev_async_write_min_active=8: These options help dRAID rebuild performance. * draid_debug_lvl=5: This option controls the verbosity level of dRAID debug traces, which is very useful for troubleshooting. Again, very important to _configure_ both spl and zfs with _--enable-debug_.