Re: [linux-lvm] is lvmraid 1 thinpool with integrity safe?
David Teigland <[email protected]>
| Newsgroups | dev.linux.lists.linux-lvm |
|---|---|
| Message-ID | <[email protected]> |
On Sun, Apr 09, 2023 at 02:21:50PM +0200, Arvid Picciani wrote: > Hi, > > doing some performance tests i noticed that lvmraid + integrity + thinpool > outperforms zfs z1 by 5x while offering the same features. (snapshots, > integrity) > > Is this somehow unsafe or how come it is so unpopular? > > lvcreate --type raid1 --mirrors 1 --size '100M' loop --name loopmeta > --raidintegritymode journal > lvcreate --type raid1 --mirrors 1 --size '700M' loop --name loopdata > --raidintegritymode journal Hi, that command does not actually enable integrity. You need to include the option "--raidintegrity y". (lvcreate should perhaps warn you about setting raidintegritymode when you've not enabled integrity.) > lvconvert --type thin-pool --poolmetadata loop/loopmeta loop/loop We do not currently permit raid+integrity to be used for a thin pool. It should be enabled in a coming release. Dave _______________________________________________ linux-lvm mailing list [email protected] https://listman.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/