On Mon, Mar 05, 2018 at 10:54:10PM +1100, Andrew Pam wrote: > [ ... ] it's also possible to set up mirroring using LVM, btrfs or ZFS > if you prefer.
With btrfs or ZFS it's easy to add additional drives for more space later. You can do that with just LVM or mdadm but there's more work required. Also, both btrfs and ZFS support transparent compression - which can greatly increase effective capacity if most of your data is uncomressed or poorly-compressed. Not video or audio files, for example. There are so many other benefits to using either btrfs or ZFS (snapshots, error-detection and correction, sub-volumes aka datasets, and much more), that IMO there's little reason to use a plain RAID-1 + ext4 partition for anything except a separate /boot. btrfs has the advantage of being included in the mainline kernel. It's also got a useful ŕebalance feature which is handy if you're adding drives and/or changing the layout. ZFS has the advantage of more features, and greater reliability. It's not built in to the kernel, but most distros have the kernel module packaged as a dkms package (ubuntu and a few others take the legally dubious stance that the CDDL vs GPL license conflict isn't a problem, so include ZFS pre-compiled with their kernels already). craig PS: the CDDL vs GPL issue isn't a problem for users. It's only a problem for distributors. -- craig sanders <[email protected]> _______________________________________________ luv-main mailing list [email protected] https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
