Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

On 11/13/2014 11:20 PM, Kir Kolyshkin wrote: > > On 11/13/2014 12:52 PM, Pavel Odintsov wrote: >> Hello! >> >> Pavel! Awesome! >> >> Please add one killer feature about ZFS - compete support for SSD with >> TRIM and not-killing-this-sector-by-thousands-writes :) Actually ZoL doesn't support TRIM,

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

On 11/13/2014 12:52 PM, Pavel Odintsov wrote: Hello! Pavel! Awesome! Please add one killer feature about ZFS - compete support for SSD with TRIM and not-killing-this-sector-by-thousands-writes :) Hmm, aren't all SSD drives have built-in wear leveling? On Thu, Nov 13, 2014 at 11:17 PM, Pav

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Hello! Pavel! Awesome! Please add one killer feature about ZFS - compete support for SSD with TRIM and not-killing-this-sector-by-thousands-writes :) On Thu, Nov 13, 2014 at 11:17 PM, Pavel Snajdr wrote: > Well, innovation isn't about matching features that someone else has > just for the sake

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Well, innovation isn't about matching features that someone else has just for the sake of having them too, is it? :) What lot of people are missing about ZFS is that it is a self-contained project trying to solve real storage problems. It's not trying to be a filesystem. It is a complete storage s

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Scott Dowdle wrote: 1) ext4 works fine and unless you have more than 16TB of storage in a single partition, it isn't really a problem. No ext4 doesn't have checksums but you do need backups no matter what filesystem you run. Filesystems that offer redundancy and checksums do not alleviate t

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Greetings, - Original Message - > But what about btrfs? From my point its not stable even in rhel7. But > for next 5-7 years we should use rhel7 openvz kernel which haven't > stable btrfs. Thus btrfs is not suitable for production usage with > containers now. Just a few clarification poin

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Greetings, - Original Message - > There's lots to ZFS, which neither BTRFS will ever even remotely > approach. Not really. That isn't to say that btrfs is done or that all of its features, especially those added much later in the development cycle, are stable. So, I don't contend that

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Quotes is a problem and pain for many containers, you are absolutely right. But this issue can be solved if we can manage and create zfs subvolumes from inside containers. Ploop is a very good storage layout but it has big amount of issues inherited from ext4. But what about btrfs? From my point

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Hello! Nfsv3 is officially supported but nfsv4 is not yet supported. On Thursday, November 13, 2014, Roman Haefeli wrote: > On Wed, 2014-11-12 at 16:28 -0500, Devon B. wrote: > >Ploop requires ext4 as the host filesystem according to bug 2277: > > https://bugzilla.openvz.org/show_bug.cgi?id

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

On Wed, 2014-11-12 at 16:28 -0500, Devon B. wrote: >Ploop requires ext4 as the host filesystem according to bug 2277: > https://bugzilla.openvz.org/show_bug.cgi?id=2277 We do run ploop based CTs on NFS storage successfully. I wonder now if that is a setup that is not officially supported. A

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

On 11/13/2014 10:49 AM, Devon B. wrote: > Are you talking about ZFS in general or ZoL? The problems I've seen > with ZoL is the performance inconsistencies (review github for details), > redundant caching, and of course user quotas (workaround is zvols but > zvols seem to have their own issues in

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Are you talking about ZFS in general or ZoL? The problems I've seen with ZoL is the performance inconsistencies (review github for details), redundant caching, and of course user quotas (workaround is zvols but zvols seem to have their own issues in current ZoL releases). As for redundant cac

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Oh, again, this debate always goes on and on :) Guys, try ZFS yourselves and come back here :) You obviously haven't seen ARC caching in action. You haven't played with snapshots. You haven't seen what the online compression can do. Etc., etc., etc. There's lots to ZFS, which neither BTRFS will

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Oh. I missed this. 13.11.2014 2:28, Devon B. пишет: > I don't think you can just run ploop over ZFS. Ploop requires ext4 as > the host filesystem according to bug 2277: > https://bugzilla.openvz.org/show_bug.cgi?id=2277 -- Best Regards, Nick Knutov http://knutov.com ICQ: 272873706 Voice: +7-

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Nick Knutov Wednesday, November 12, 2014 3:40 PM ZFS in this case is more alternative to Parallels Cloud Storage which is closed source and hard to get even for money (I contacted Parallels sales several times and never got the pricelist from them). Also, ZFS is goo

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Parallels Cloud Storage is not an real filesystem in "old filesystems" terms, it based on ext4 locally and provides only remote features like redundancy and multi level caching. On Wed, Nov 12, 2014 at 11:40 PM, Nick Knutov wrote: > When you need quotes and there is only one way to get them... >

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

When you need quotes and there is only one way to get them... I don't think ploop is about to solve ext4 troubles. I's just solve some troubles (which are common to a lot of file systems). ZFS in this case is more alternative to Parallels Cloud Storage which is closed source and hard to get even

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Scott Dowdle Wednesday, November 12, 2014 2:48 PM Greetings, - Original Message - Performance issues aren't the only problem ploop solves... it also solves the changing inode issue. When a container is migrated from one host to another with simfs, in

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Greetings, - Original Message - > Ploop is really useless for ZFS because it solves ext4 troubles and > ZFS haven't this issues by design. Quotes maybe problems, good > addition. I just added remark about quotes to comparison table. Performance issues aren't the only problem ploop solves.

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Hello, Nick! Ploop is really useless for ZFS because it solves ext4 troubles and ZFS haven't this issues by design. Quotes maybe problems, good addition. I just added remark about quotes to comparison table. On Wed, Nov 12, 2014 at 9:56 PM, Nick Knutov wrote: > Well, good beginning, but.. > > as

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Thank you for suggestion! Just added! On Wed, Nov 12, 2014 at 9:20 PM, CoolCold wrote: > I think you should add some links for general zfs-on-linux with openvz > install / setup guide, to help people who will be inspired by your readme > > On Wed, Nov 12, 2014 at 1:20 PM, Pavel Odintsov > wrote:

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Well, good beginning, but.. as we discussed earlier: in most cases of hosting purposes users need quotes. And quotes work only with ext4. So the only real possible case of usage is ploop over zfs and the only good reason to have zfs here is l2arc cache on ssd or large amount SSD disks in raidz3 o

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

I think you should add some links for general zfs-on-linux with openvz install / setup guide, to help people who will be inspired by your readme On Wed, Nov 12, 2014 at 1:20 PM, Pavel Odintsov wrote: > Hello, everyone! > > Tonight I tested and prepared very short and reliable guide about > runni

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Hello! I created comparison table for answer to your question: https://github.com/pavel-odintsov/OpenVZ_ZFS/blob/master/openvz_storage_backends.md On Wed, Nov 12, 2014 at 7:10 PM, Scott Dowdle wrote: > Greetings, > > - Original Message - >> Tonight I tested and prepared very short and re

Re: [Users] Shortest guide about running OpenVZ containers on top of ZFS

Greetings, - Original Message - > Tonight I tested and prepared very short and reliable guide about > running OpenVZ container on top of > best-ever-and-ever-zettabyte-filesystem ZFS. > > You can find manual here: > https://github.com/pavel-odintsov/OpenVZ_ZFS/blob/master/OpenVZ_container

[Users] Shortest guide about running OpenVZ containers on top of ZFS

Hello, everyone! Tonight I tested and prepared very short and reliable guide about running OpenVZ container on top of best-ever-and-ever-zettabyte-filesystem ZFS. You can find manual here: https://github.com/pavel-odintsov/OpenVZ_ZFS/blob/master/OpenVZ_containers_on_zfs_filesystem.md Any questio