[CentOS] ZFS and encryption on CentOS 7

2020-09-23 Thread H
Can I ask what the prevailing opinion is on ZFS and encryption on CentOS 7? Is encryption in ZFS stable? If so, I would use it on a new naked drive I just added. If not, I might stick with LUKS and XFS for now. The drive is a 2 Tb SSD. Thanks. ___

Re: [CentOS] ZFS fails with latest C8 kernel

2020-08-10 Thread Johnny Hughes
On 8/10/20 1:43 AM, Robert G (Doc) Savage via CentOS wrote: > As if last weekend's UEFI debacle wasn't bad enough, it now seems the > latest C8 kernel (4.18.0-193.14.2) is incompatible with the current > ZFSOnLinux packages (0.8.4-1). When booted to the latest kernel, ZFS is > inaccessible on my

Re: [CentOS] ZFS fails with latest C8 kernel

2020-08-10 Thread Tru Huynh
On Mon, Aug 10, 2020 at 01:43:00AM -0500, Robert G (Doc) Savage via CentOS wrote: > As if last weekend's UEFI debacle wasn't bad enough, it now seems the > latest C8 kernel (4.18.0-193.14.2) is incompatible with the current > ZFSOnLinux packages (0.8.4-1). When booted to the latest kernel, ZFS is

Re: [CentOS] ZFS fails with latest C8 kernel

2020-08-10 Thread Phil Perry
On 10/08/2020 07:43, Robert G (Doc) Savage via CentOS wrote: As if last weekend's UEFI debacle wasn't bad enough, it now seems the latest C8 kernel (4.18.0-193.14.2) is incompatible with the current ZFSOnLinux packages (0.8.4-1). When booted to the latest kernel, ZFS is inaccessible on my C8

[CentOS] ZFS fails with latest C8 kernel

2020-08-10 Thread Robert G (Doc) Savage via CentOS
As if last weekend's UEFI debacle wasn't bad enough, it now seems the latest C8 kernel (4.18.0-193.14.2) is incompatible with the current ZFSOnLinux packages (0.8.4-1). When booted to the latest kernel, ZFS is inaccessible on my C8 storage server. When I back off to the prior kernel

Re: [CentOS] zfs [SOLVED][CONFUSED]

2019-06-14 Thread mark
mark wrote: > mark wrote: >> >> testing zfs. I'd created a zpoolz2, ran a large backup onto it. Then I >> pulled one drive (11-drive, one hot spare pool), and it resilvered with >> the hot spare. zpool status -x shows me state: DEGRADED status: One or >> more devices could not be used because

Re: [CentOS] zfs

2019-06-14 Thread John Pierce
try, zpool replace export1 sdb sdl but it says the spare is already in use, so I'm not sure why the resilver isn't already in progress. you might have to remove sdl from the spares list before you can use it in a replace. On Fri, Jun 14, 2019 at 9:03 AM mark wrote: > Hi, folks, > >

Re: [CentOS] zfs [SOLVED]

2019-06-14 Thread mark
mark wrote: > Hi, folks, > > > testing zfs. I'd created a zpoolz2, ran a large backup onto it. Then I > pulled one drive (11-drive, one hot spare pool), and it resilvered with > the hot spare. zpool status -x shows me state: DEGRADED > status: One or more devices could not be used because the

[CentOS] zfs

2019-06-14 Thread mark
Hi, folks, testing zfs. I'd created a zpoolz2, ran a large backup onto it. Then I pulled one drive (11-drive, one hot spare pool), and it resilvered with the hot spare. zpool status -x shows me state: DEGRADED status: One or more devices could not be used because the label is missing or

Re: [CentOS] ZFS fails with C7 957

2018-12-06 Thread Akemi Yagi
On Thu, Dec 6, 2018 at 3:23 PM Jonathan Billings wrote: > > On Dec 6, 2018, at 17:45, david wrote: > > > > Folks > > > > I have two USB connected drives, configured as a mirrored-pair in ZFS. > > It's been working fine UNTIL I updated Centos > > from 3.10.0-862.14.4.el7.x86_64 > > to

Re: [CentOS] ZFS fails with C7 957

2018-12-06 Thread Jonathan Billings
On Dec 6, 2018, at 17:45, david wrote: > > Folks > > I have two USB connected drives, configured as a mirrored-pair in ZFS. It's > been working fine UNTIL I updated Centos > from 3.10.0-862.14.4.el7.x86_64 > to 3.10.0-957.1.3.el7.x86_64 > > The import of the pools didn't happen at boot.

[CentOS] ZFS fails with C7 957

2018-12-06 Thread david
Folks I have two USB connected drives, configured as a mirrored-pair in ZFS. It's been working fine UNTIL I updated Centos from 3.10.0-862.14.4.el7.x86_64 to 3.10.0-957.1.3.el7.x86_64 The import of the pools didn't happen at boot. When I tried executing: zpool list I got the diagnostic

Re: [CentOS] ZFS on Linux repository

2018-07-03 Thread Gionatan Danti
Il 03-07-2018 15:39 Nux! ha scritto: Watch out, ZFS on Linux is not as good as on FreeBSD/Solaris. Just recently there was an issue with data loss. https://github.com/zfsonlinux/zfs/issues/7401 I know; I was on the very same github issue you linked. While the bug was very unfortunate, ZFS

Re: [CentOS] ZFS on Linux repository

2018-07-03 Thread vychytraly
cian > > -- > Sent from the Delta quadrant using Borg technology! > > Nux! > www.nux.ro > > - Original Message - > > From: "Gionatan Danti" > > To: "CentOS mailing list" > > Sent: Monday, 25 June, 2018 22:19:22 >

Re: [CentOS] ZFS on Linux repository

2018-07-03 Thread Nux!
an Danti" > To: "CentOS mailing list" > Sent: Monday, 25 June, 2018 22:19:22 > Subject: [CentOS] ZFS on Linux repository > Hi list, > we all know why ZFS is not included in RHEL/CentOS distributions: its > CDDL license is/seems not compatible with GPL license. &g

Re: [CentOS] ZFS on Linux repository

2018-06-26 Thread Patrick Brisson
I'm using ZFS On Linux with CentOS 6 since almost two years. http://zfsonlinux.org/ I'm not using it to boot from it or for any vm stuff, but just for storage disks. Recently updated to ZOL version 0.7.9. To install, I simply follow the instructions from this page:

Re: [CentOS] ZFS on Linux repository

2018-06-26 Thread Gionatan Danti
Il 25-06-2018 23:59 Yves Bellefeuille ha scritto: I think the simplest solution would be to add this (which I haven't tried): http://zfsonlinux.org/ https://github.com/zfsonlinux/zfs/wiki/RHEL-and-CentOS to the Available Repositories for CentOS wiki page:

Re: [CentOS] ZFS on Linux repository

2018-06-25 Thread Yves Bellefeuille
Gionatan Danti wrote: > I searched the list but I did not found anything regarding native ZFS. > Any feedback on the matter is welcomed. Thanks. I think the simplest solution would be to add this (which I haven't tried): http://zfsonlinux.org/

[CentOS] ZFS on Linux repository

2018-06-25 Thread Gionatan Danti
Hi list, we all know why ZFS is not included in RHEL/CentOS distributions: its CDDL license is/seems not compatible with GPL license. I'm not a layer, and I do not have any strong opinion on the matter. However, as a sysadmin, I found ZFS to be extremely useful, especially considering BTRFS

Re: [CentOS] ZFS Scrubbing (might be off topic)

2014-10-31 Thread James B. Byrne
On Thu, October 30, 2014 21:47, david wrote: Folks I have a ZFS file system. It seems to be scrubbing too often. As I type, it's 5 hours into the process with 36 hours to go, and seems to be doing it several times a week on a slow drive. I cannot find an option to control the frequency;

[CentOS] ZFS Scrubbing (might be off topic)

2014-10-30 Thread david
Folks I have a ZFS file system. It seems to be scrubbing too often. As I type, it's 5 hours into the process with 36 hours to go, and seems to be doing it several times a week on a slow drive. I cannot find an option to control the frequency; crontab has no references. Any clues? David

Re: [CentOS] ZFS Scrubbing (might be off topic)

2014-10-30 Thread John R Pierce
On 10/30/2014 6:47 PM, david wrote: I have a ZFS file system. It seems to be scrubbing too often. As I type, it's 5 hours into the process with 36 hours to go, and seems to be doing it several times a week on a slow drive. I cannot find an option to control the frequency; crontab has no

Re: [CentOS] ZFS Scrubbing (might be off topic)

2014-10-30 Thread david
OK, I found it. Is this option documented somewhere? Are there other frequency settings? like once-a-month? At 08:15 PM 10/30/2014, you wrote: On 10/30/2014 6:47 PM, david wrote: I have a ZFS file system. It seems to be scrubbing too often. As I type, it's 5 hours into the process with

Re: [CentOS] ZFS Scrubbing (might be off topic)

2014-10-30 Thread John R Pierce
On 10/30/2014 8:46 PM, david wrote: OK, I found it. Is this option documented somewhere? Are there other frequency settings? like once-a-month? i've only used ZFS on solaris, where there are no automatic scrubs unless you script your own via cron, and freeNAS where they are done at

Re: [CentOS] ZFS

2014-09-16 Thread James B. Byrne
On Mon, September 15, 2014 18:54, Paul Heinlein wrote: On Mon, 15 Sep 2014, Valeri Galtsev wrote: Am I the only one who is tempted to say: people, could you kindly start deciphering your abbreviations. I know, I know, computed science uses _that_ abbreviation for years. But we definitely

Re: [CentOS] ZFS

2014-09-16 Thread Chuck Munro
On 2014-09-15 , kkel...@wombat.san-francisco.ca.us wrote: So the ZoL folks want one more feature before calling it 1.0; otherwise they believe it's production ready. Only your own testing can convince you that it's truly production ready. --keith That's encouraging news, something I've

Re: [CentOS] ZFS

2014-09-16 Thread Warren Young
On 9/15/2014 16:54, Paul Heinlein wrote: On Mon, 15 Sep 2014, Valeri Galtsev wrote: 1. a throw-away line meant as a joke, I didn't take it as a joke so much as a comment that where he works, high-end hardware is available for the asking. SLC is the most expensive sort of SSD; if it's so

Re: [CentOS] ZFS

2014-09-16 Thread Valeri Galtsev
On Tue, September 16, 2014 12:03 pm, Warren Young wrote: On 9/15/2014 16:54, Paul Heinlein wrote: On Mon, 15 Sep 2014, Valeri Galtsev wrote: 1. a throw-away line meant as a joke, I didn't take it as a joke so much as a comment that where he works, high-end hardware is available for the

Re: [CentOS] ZFS

2014-09-16 Thread m . roth
Warren Young wrote: On 9/15/2014 16:54, Paul Heinlein wrote: On Mon, 15 Sep 2014, Valeri Galtsev wrote: 1. a throw-away line meant as a joke, I didn't take it as a joke so much as a comment that where he works, high-end hardware is available for the asking. SLC is the most expensive

Re: [CentOS] ZFS

2014-09-16 Thread Andrew Holway
Given the upcoming elections, Referendum. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] ZFS

2014-09-16 Thread Valeri Galtsev
On Tue, September 16, 2014 12:47 pm, m.r...@5-cent.us wrote: Warren Young wrote: On 9/15/2014 16:54, Paul Heinlein wrote: On Mon, 15 Sep 2014, Valeri Galtsev wrote: 1. a throw-away line meant as a joke, I didn't take it as a joke so much as a comment that where he works, high-end

Re: [CentOS] ZFS

2014-09-16 Thread m . roth
Andrew Holway wrote: Given the upcoming elections, Referendum. I sit, and type, corrected. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] ZFS

2014-09-16 Thread Andrew Holway
Referendum. I sit, and type, corrected. :) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] ZFS

2014-09-16 Thread Andrew Holway
I would strongly suggest anyone interested in ZFS on Linux join the zfs-discuss list. http://zfsonlinux.org/lists.html There is a fairly good signal to noise ratio. On 16 September 2014 20:17, Andrew Holway andrew.hol...@gmail.com wrote: Referendum. I sit, and type, corrected. :)

Re: [CentOS] ZFS

2014-09-16 Thread m . roth
Valeri Galtsev wrote: On Tue, September 16, 2014 12:47 pm, m.r...@5-cent.us wrote: Warren Young wrote: On 9/15/2014 16:54, Paul Heinlein wrote: On Mon, 15 Sep 2014, Valeri Galtsev wrote: snip that adding an SSD to a ZFS pool to accelerate it isn't free. Where he works, it effectively *is*

Re: [CentOS] ZFS

2014-09-16 Thread Always Learning
On Tue, 2014-09-16 at 13:47 -0400, m.r...@5-cent.us wrote: Given the upcoming elections, I like Scottish Law Commission, I don't think they will get independence from the clowns in London, England, this time, but I do wish them every possible success ! -- Regards, Paul. England, EU.

Re: [CentOS] ZFS

2014-09-15 Thread Miguel Medalha
Maybe you can tune ZFS further, but I tried it in userspace (with FUSE) and reading was a almost 5 times slower than MDADM. That alone is meaningless. MDADM with which filesystem? Zfsonlinux does not work in user space, it is a kernel module. Just try it.

Re: [CentOS] ZFS

2014-09-15 Thread Keith Keller
On 2014-09-15, Chris chris2...@postbox.xyz wrote: On 09/08/2014 09:00 PM, Andrew Holway wrote: Try ZFS http://zfsonlinux.org/ Maybe you can tune ZFS further, but I tried it in userspace (with FUSE) and reading was a almost 5 times slower than MDADM. Just running ZFS in the kernel is going to

Re: [CentOS] ZFS

2014-09-15 Thread Andrew Holway
Maybe you can tune ZFS further, but I tried it in userspace (with FUSE) and reading was a almost 5 times slower than MDADM. ZFS on Linux is backed by the US government as ZFS will be used as the primary filesystem to back the parallel distributed filesystem 'Lustre'. Lustre is used in the

Re: [CentOS] ZFS

2014-09-15 Thread Warren Young
On 9/15/2014 01:37, Andrew Holway wrote: To set expectation. Actually, the most recent release (0.63) of ZFS on Linux is not that quick. Compared to what? To ZFS on Solaris, ZFS on FreeBSD, or ext4 on Linux? Any comparison between ZFS and non-ZFS probably overlooks things like

Re: [CentOS] ZFS

2014-09-15 Thread Fernando Cassia
On Mon, Sep 15, 2014 at 4:37 AM, Andrew Holway andrew.hol...@gmail.com wrote: ZFS on Linux is backed by the US government as ZFS will be used as the primary filesystem to back the parallel distributed filesystem 'Lustre'. wow, the US government!!. *sarcasm implied* FC -- During times of

Re: [CentOS] ZFS

2014-09-15 Thread Les Mikesell
On Mon, Sep 15, 2014 at 1:16 PM, Fernando Cassia fcas...@gmail.com wrote: On Mon, Sep 15, 2014 at 4:37 AM, Andrew Holway andrew.hol...@gmail.com wrote: ZFS on Linux is backed by the US government as ZFS will be used as the primary filesystem to back the parallel distributed filesystem

Re: [CentOS] ZFS

2014-09-15 Thread Chris
On 09/15/2014 08:18 AM, Miguel Medalha wrote: That alone is meaningless. MDADM with which filesystem? ext4 Zfsonlinux does not work in user space, it is a kernel module. Just try it. Isn't fuse / zfs (partly?) in userspace? -- Gruß, Christian

Re: [CentOS] ZFS

2014-09-15 Thread m . roth
Les Mikesell wrote: On Mon, Sep 15, 2014 at 1:16 PM, Fernando Cassia fcas...@gmail.com wrote: On Mon, Sep 15, 2014 at 4:37 AM, Andrew Holway andrew.hol...@gmail.com wrote: ZFS on Linux is backed by the US government as ZFS will be used as the primary filesystem to back the parallel

Re: [CentOS] ZFS

2014-09-15 Thread Fernando Cassia
On Mon, Sep 15, 2014 at 3:20 PM, Les Mikesell lesmikes...@gmail.com wrote: Ummm, like you've walked on the moon LOL. I will begin saying that the US government backs JavaFX then, just because NASA uses it in some projects.

Re: [CentOS] ZFS

2014-09-15 Thread Fernando Cassia
On Mon, Sep 15, 2014 at 3:27 PM, Chris chris2...@postbox.xyz wrote: Isn't fuse / zfs (partly?) in userspace? I believe there´s two separate efforts to run ZFS on Linux. One uses FUSE, the other reimplemented ZFS as a loadable kernel module. FC ___

Re: [CentOS] ZFS

2014-09-15 Thread Fernando Cassia
On Mon, Sep 15, 2014 at 3:18 AM, Miguel Medalha miguelmeda...@sapo.pt wrote: Zfsonlinux does not work in user space, it is a kernel module. Just try it. There´s a copy-on-write file system in the GPL Linux kernel, merged into the mainline Linux kernel in January 2009.

Re: [CentOS] ZFS

2014-09-15 Thread Ray Van Dolson
On Mon, Sep 15, 2014 at 03:29:31PM -0300, Fernando Cassia wrote: On Mon, Sep 15, 2014 at 3:27 PM, Chris chris2...@postbox.xyz wrote: Isn't fuse / zfs (partly?) in userspace? I believe there´s two separate efforts to run ZFS on Linux. One uses FUSE, the other reimplemented ZFS as a

Re: [CentOS] ZFS

2014-09-15 Thread Steve Thompson
On Mon, 15 Sep 2014, Fernando Cassia wrote: It´s called BTRFS. It´s supported by SUSE, Fujitsu, Oracle, among others. Yeah, but is it supported by the *US Government* ??? Steve___ CentOS mailing list CentOS@centos.org

Re: [CentOS] ZFS

2014-09-15 Thread Eero Volotinen
2014-09-15 22:51 GMT+03:00 Steve Thompson s...@vgersoft.com: On Mon, 15 Sep 2014, Fernando Cassia wrote: It´s called BTRFS. It´s supported by SUSE, Fujitsu, Oracle, among others. Yeah, but is it supported by the *US Government* ??? zfs release zero dot something does not sound like

Re: [CentOS] ZFS

2014-09-15 Thread Warren Young
On 9/15/2014 13:58, Eero Volotinen wrote: zfs release zero dot something does not sound like production ready ? https://clusterhq.com/blog/state-zfs-on-linux/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] ZFS

2014-09-15 Thread m . roth
Steve Thompson wrote: On Mon, 15 Sep 2014, Fernando Cassia wrote: It´s called BTRFS. It´s supported by SUSE, Fujitsu, Oracle, among others. Yeah, but is it supported by the *US Government* ??? Hey, selinux is ___ CentOS mailing list

Re: [CentOS] ZFS

2014-09-15 Thread m . roth
Eero Volotinen wrote: 2014-09-15 22:51 GMT+03:00 Steve Thompson s...@vgersoft.com: On Mon, 15 Sep 2014, Fernando Cassia wrote: It´s called BTRFS. It´s supported by SUSE, Fujitsu, Oracle, among others. Yeah, but is it supported by the *US Government* ??? zfs release zero dot something

Re: [CentOS] ZFS

2014-09-15 Thread Andrew Holway
Any comparison between ZFS and non-ZFS probably overlooks things like fully-checksummed data (not just metadata) and redundant copies. ZFS will always be slower than filesystems without these features. TANSTAAFL. Not really true. It hugely depends on your workload. For example, if you

Re: [CentOS] ZFS

2014-09-15 Thread Warren Young
On 9/15/2014 14:48, Andrew Holway wrote: Any comparison between ZFS and non-ZFS probably overlooks things like fully-checksummed data (not just metadata) and redundant copies. ZFS will always be slower than filesystems without these features. TANSTAAFL. Not really true. It hugely depends

Re: [CentOS] ZFS

2014-09-15 Thread Andrew Holway
The SSD and second CPU core are not free. Where I come from, the streets are paved with SLC ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] ZFS

2014-09-15 Thread Valeri Galtsev
On Mon, September 15, 2014 4:49 pm, Andrew Holway wrote: The SSD and second CPU core are not free. Where I come from, the streets are paved with SLC Is it Salt Lake City that you are from? (that is so reach with Second Level Cache... That is what you actually meant I figure) Am I the only

Re: [CentOS] ZFS

2014-09-15 Thread Paul Heinlein
On Mon, 15 Sep 2014, Valeri Galtsev wrote: On Mon, September 15, 2014 4:49 pm, Andrew Holway wrote: The SSD and second CPU core are not free. Where I come from, the streets are paved with SLC Is it Salt Lake City that you are from? (that is so reach with Second Level Cache... That is

Re: [CentOS] ZFS

2014-09-15 Thread Keith Keller
On 2014-09-15, Warren Young war...@etr-usa.com wrote: On 9/15/2014 13:58, Eero Volotinen wrote: zfs release zero dot something does not sound like production ready ? https://clusterhq.com/blog/state-zfs-on-linux/ That's a super (and timely!) post on XFS. I saw in particular this section.

[CentOS] ZFS

2014-09-14 Thread Chris
On 09/08/2014 09:00 PM, Andrew Holway wrote: Try ZFS http://zfsonlinux.org/ Maybe you can tune ZFS further, but I tried it in userspace (with FUSE) and reading was a almost 5 times slower than MDADM. -- Gruß, Christian ___ CentOS mailing list

Re: [CentOS] ZFS on Linux testing effort

2014-03-01 Thread Lists
I had promised to weigh in on my experiences using ZFS in a production environment. We've been testing it for a few months now, and confidence is building. We've started using it in production about a month ago after months of non production testing. I'll append my thoughts in a cross-post

Re: [CentOS] ZFS on Linux testing effort

2014-01-06 Thread Lists
On 11/30/2013 06:20 AM, Andrew Holway wrote: Hey, http://zfsonlinux.org/epel.html If you have a little time and resource please install and report back any problems you see. Andrew, I want to run /var on zfs, but when I try to move /var over it won't boot thereafter, with errors about

Re: [CentOS] ZFS on Linux testing effort

2014-01-06 Thread Cliff Pratt
Grub only needs to know about the filesystems that it uses to boot the system. Mounting of the other file systems including /var is the responsibility of the system that has been booted. I suspect that you have something else wrong if you can't boot with /var/ on ZFS. I may be wrong, but I don't

Re: [CentOS] ZFS on Linux testing effort

2014-01-06 Thread John R Pierce
On 1/6/2014 3:26 PM, Cliff Pratt wrote: Grub only needs to know about the filesystems that it uses to boot the system. Mounting of the other file systems including /var is the responsibility of the system that has been booted. I suspect that you have something else wrong if you can't boot

Re: [CentOS] ZFS on Linux testing

2013-12-19 Thread Chuck Munro
On 12/19/2013, 04:00 , li...@benjamindsmith.com wrote: BackupPC is a great product, and if I knew of it and/or it was available when I started, I would likely have used it instead of cutting code. Now that we've got BackupBuddy working and integrated, we aren't going to be switching as it

Re: [CentOS] ZFS on Linux testing

2013-12-18 Thread Chuck Munro
On 12/18/2013, 04:00 , li...@benjamindsmith.com wrote: I may be being presumptuous, and if so, I apologize in advance... It sounds to me like you might consider a disk-to-disk backup solution. I could suggest dirvish, BackupPC, or our own home-rolled rsync-based solution that works rather

Re: [CentOS] ZFS on Linux testing

2013-12-18 Thread Les Mikesell
On Wed, Dec 18, 2013 at 9:13 AM, Chuck Munro chu...@seafoam.net wrote: Not presumptuous at all! I have not heard of backupbuddy (or dirvish), so I should investigate. Your description makes it sound somewhat like OS-X Time Machine, which I like a lot. I did try backuppc but it got a bit

Re: [CentOS] ZFS on Linux testing

2013-12-18 Thread Lists
On 12/18/2013 07:50 AM, Les Mikesell wrote: I've always considered backuppc to be one of those rare things that you set up once and it takes care of itself for years. If you have problems with it, someone on the backuppc mail list might be able to help. It does tend to be slower than native

Re: [CentOS] ZFS on Linux testing

2013-12-18 Thread Les Mikesell
On Wed, Dec 18, 2013 at 3:13 PM, Lists li...@benjamindsmith.com wrote: I would differentiate BackupBuddy in that there is no incremental and full distinction. All backups are full in the truest sense of the word, For the people who don't know, backuppc builds a directory tree for each backup

Re: [CentOS] ZFS on Linux testing

2013-12-18 Thread Lists
On 12/18/2013 03:04 PM, Les Mikesell wrote: For the people who don't know, backuppc builds a directory tree for each backup run where the full runs are complete and the incrementals normally only contain the changed files. However, when you access the incremental backups through the web

Re: [CentOS] ZFS on Linux testing

2013-12-18 Thread John R Pierce
On 12/18/2013 3:41 PM, Lists wrote: Should I read this as BackupPC now has its own filesystem driver? If so, wow. Or do you mean that there are command line tools to read/copy BackupPC save points? web interface, primarily. you can restore any portion of any version of any backup to the

Re: [CentOS] ZFS on Linux testing

2013-12-18 Thread Les Mikesell
On Wed, Dec 18, 2013 at 5:41 PM, Lists li...@benjamindsmith.com wrote: On 12/18/2013 03:04 PM, Les Mikesell wrote: For the people who don't know, backuppc builds a directory tree for each backup run where the full runs are complete and the incrementals normally only contain the changed files.

Re: [CentOS] ZFS on Linux testing

2013-12-17 Thread Lists
On 12/14/2013 08:50 AM, Chuck Munro wrote: Hi Ben, Yes, the initial replication of a large filesystem is *very* time consuming! But it makes sleeping at night much easier. I did have to crank up the inotify kernel parameters by a significant amount. I did the initial replication using

Re: [CentOS] ZFS on Linux testing

2013-12-14 Thread Chuck Munro
On 12/14/2013, 04:00 , li...@benjamindsmith.com wrote: We checked lsyncd out and it's most certainly an very interesting tool. I*will* be using it in the future! However, we found that it has some issues scaling up to really big file stores that we haven't seen (yet) with ZFS. For

Re: [CentOS] ZFS on Linux testing effort

2013-12-13 Thread Lists
On 12/04/2013 06:05 AM, John Doe wrote: Not sure if I already mentioned it but maybe have a look at: http://code.google.com/p/lsyncd/ We checked lsyncd out and it's most certainly an very interesting tool. I *will* be using it in the future! However, we found that it has some issues scaling

Re: [CentOS] ZFS on Linux testing effort

2013-12-06 Thread Chuck Munro
On 04.12.2013 14:05, n...@li.nux.ro wrote: On 04.12.2013 14:05, John Doe wrote: From: Listsli...@benjamindsmith.com Our next big test is to try out ZFS filesystem send/receive in lieu of our current backup processes based on rsync. Rsync is a fabulous tool, but is beginning to show

Re: [CentOS] ZFS on Linux testing effort

2013-12-05 Thread Chuck Munro
On 04.12.2013 14:05, John Doe wrote: From: Listsli...@benjamindsmith.com Our next big test is to try out ZFS filesystem send/receive in lieu of our current backup processes based on rsync. Rsync is a fabulous tool, but is beginning to show performance/scalability issues dealing with the

Re: [CentOS] ZFS on Linux testing effort

2013-12-05 Thread Nux!
On 05.12.2013 22:46, Chuck Munro wrote: On 04.12.2013 14:05, John Doe wrote: From: Listsli...@benjamindsmith.com Our next big test is to try out ZFS filesystem send/receive in lieu of our current backup processes based on rsync. Rsync is a fabulous tool, but is beginning to show

Re: [CentOS] ZFS on Linux testing effort

2013-12-04 Thread John Doe
From: Lists li...@benjamindsmith.com Our next big test is to try out ZFS filesystem send/receive in lieu of our current backup processes based on rsync. Rsync is a fabulous tool, but is beginning to show performance/scalability issues dealing with the many millions of files being backed

Re: [CentOS] ZFS on Linux testing effort

2013-12-04 Thread Nux!
On 04.12.2013 14:05, John Doe wrote: From: Lists li...@benjamindsmith.com Our next big test is to try out ZFS filesystem send/receive in lieu of our current backup processes based on rsync. Rsync is a fabulous tool, but is beginning to show performance/scalability issues dealing with

Re: [CentOS] ZFS on Linux testing effort

2013-12-03 Thread Lists
Andrew, We've been testing ZFS since about 10/24, see my original post (and replies) asking about its suitability ZFS on Linux in production on this list. So far, it's been rather impressive. Enabling compression better than halved the disk space utilization in a low/medium bandwidth (mainly

Re: [CentOS] ZFS on Linux testing effort

2013-12-03 Thread Ryan Wagoner
On Sat, Nov 30, 2013 at 9:20 AM, Andrew Holway andrew.hol...@gmail.comwrote: Hey, http://zfsonlinux.org/epel.html If you have a little time and resource please install and report back any problems you see. A filesystem or Volume sits within a zpool a zpool is made up of vdevs vdevs are

[CentOS] ZFS on Linux testing effort

2013-11-30 Thread Andrew Holway
Hey, http://zfsonlinux.org/epel.html If you have a little time and resource please install and report back any problems you see. A filesystem or Volume sits within a zpool a zpool is made up of vdevs vdevs are made up of block devices. zpool is similar to LVM volume vdev is similar to raid set

Re: [CentOS] ZFS on Linux in production?

2013-11-04 Thread Markus Falb
On 24.Okt.2013, at 22:59, John R Pierce wrote: On 10/24/2013 1:41 PM, Lists wrote: Was wondering if anybody here could weigh in with real-life experience? Performance/scalability? I've only used ZFS on Solaris and FreeBSD.some general observations... ... 3) NEVER let a zpool fill up

Re: [CentOS] ZFS on Linux in production?

2013-11-04 Thread Les Mikesell
On Mon, Nov 4, 2013 at 12:15 PM, Markus Falb wne...@gmail.com wrote: 3) NEVER let a zpool fill up above about 70% full, or the performance really goes downhill. Why is it? It sounds cost intensive, if not ridiculous. Disk space not to used, forbidden land... Is the remaining 30% used by

Re: [CentOS] ZFS on Linux in production?

2013-11-04 Thread John R Pierce
On 11/4/2013 10:43 AM, Les Mikesell wrote: On Mon, Nov 4, 2013 at 12:15 PM, Markus Falb wne...@gmail.com wrote: 3) NEVER let a zpool fill up above about 70% full, or the performance really goes downhill. Why is it? It sounds cost intensive, if not ridiculous. Disk space not to used,

Re: [CentOS] ZFS on Linux in production?

2013-11-04 Thread Nicolas Thierry-Mieg
On 11/04/2013 08:01 PM, John R Pierce wrote: On 11/4/2013 10:43 AM, Les Mikesell wrote: On Mon, Nov 4, 2013 at 12:15 PM, Markus Falb wne...@gmail.com wrote: 3) NEVER let a zpool fill up above about 70% full, or the performance really goes downhill. Why is it? It sounds cost intensive, if

Re: [CentOS] ZFS on Linux in production?

2013-11-04 Thread John R Pierce
On 11/4/2013 3:21 PM, Nicolas Thierry-Mieg wrote: but why would this be much worse with ZFS than eg ext4? because ZFS works considerably differently than extfs... its a copy-on-write system to start with. -- john r pierce 37N 122W somewhere on the middle

Re: [CentOS] ZFS on Linux in production?

2013-11-03 Thread Rajagopal Swaminathan
Greetings, On Fri, Oct 25, 2013 at 3:57 AM, Keith Keller kkel...@wombat.san-francisco.ca.us wrote: I don't have my own, but I have heard of other shops which have had lots of success with ZFS on OpenSolaris and their variants. And I know of a shop which could not recover a huge ZFS on freebsd

Re: [CentOS] ZFS on Linux in production?

2013-10-30 Thread Lists
On 10/25/2013 11:14 AM, Chuck Munro wrote: To keep the two servers in sync I use 'lsyncd' which is essentially a front-end for rsync that cuts down thrashing and overhead dramatically by excluding the full filesystem scan and using inotify to figure out what to sync. This allows

Re: [CentOS] ZFS on Linux in production?

2013-10-30 Thread Mailing List
To be honest is not easier to install on server FreeBSD or Solaris where ZFS is natively supported? I moved my own server to FreeBSD and I didn't noticed huge difference between Linux distros and freebsd, I have no idea what about Solaris but it might be still similar environment. Sent from

Re: [CentOS] ZFS on Linux in production?

2013-10-26 Thread Ray Van Dolson
On Thu, Oct 24, 2013 at 01:41:17PM -0700, Lists wrote: We are a CentOS shop, and have the lucky, fortunate problem of having ever-increasing amounts of data to manage. EXT3/4 becomes tough to manage when you start climbing, especially when you have to upgrade, so we're contemplating

Re: [CentOS] ZFS on Linux in production?

2013-10-26 Thread Ray Van Dolson
On Thu, Oct 24, 2013 at 01:59:15PM -0700, John R Pierce wrote: On 10/24/2013 1:41 PM, Lists wrote: Was wondering if anybody here could weigh in with real-life experience? Performance/scalability? I've only used ZFS on Solaris and FreeBSD.some general observations... 1) you need a

Re: [CentOS] ZFS on Linux in production?

2013-10-26 Thread George Kontostanos
On Sat, Oct 26, 2013 at 4:36 PM, Ray Van Dolson ra...@bludgeon.org wrote: On Thu, Oct 24, 2013 at 01:59:15PM -0700, John R Pierce wrote: On 10/24/2013 1:41 PM, Lists wrote: Was wondering if anybody here could weigh in with real-life experience? Performance/scalability? I've only used

Re: [CentOS] ZFS on Linux in production?

2013-10-25 Thread Warren Young
On Oct 24, 2013, at 8:01 PM, Lists li...@benjamindsmith.com wrote: Not sure enough of the vernacular Yes, ZFS is complicated enough to have a specialized vocabulary. I used two of these terms in my previous post: - vdev, which is a virtual device, something like a software RAID. It is one

Re: [CentOS] ZFS on Linux in production?

2013-10-25 Thread John R Pierce
On 10/24/2013 11:18 PM, Warren Young wrote: All of the ZFSes out there are crippled relative to what's shipping in Solaris now, because Oracle has stopped releasing code. There are nontrivial features in zpool v29+, which simply aren't in the free forks of older versions o the Sun code.

Re: [CentOS] ZFS on Linux in production?

2013-10-25 Thread Lists
On 10/24/2013 11:18 PM, Warren Young wrote: - vdev, which is a virtual device, something like a software RAID. It is one or more disks, configured together, typically with some form of redundancy. - pool, which is one or more vdevs, which has a capacity equal to all of its vdevs added

Re: [CentOS] ZFS on Linux in production?

2013-10-25 Thread John R Pierce
On 10/25/2013 10:33 AM, Lists wrote: LVM2 complicates administration terribly. huh? it hugely simplifies it for me, when I have lots of drives. I just wish mdraid and lvm were better integrated. to see how it should have been done, see IBM AIX's version of lvm.you grow a jfs file system,

Re: [CentOS] ZFS on Linux in production?

2013-10-25 Thread Chuck Munro
On 10/25/2013, 05:00 , centos-requ...@centos.org wrote: We are a CentOS shop, and have the lucky, fortunate problem of having ever-increasing amounts of data to manage. EXT3/4 becomes tough to manage when you start climbing, especially when you have to upgrade, so we're contemplating

Re: [CentOS] ZFS on Linux in production?

2013-10-25 Thread Mauricio Tavares
On Fri, Oct 25, 2013 at 1:40 PM, John R Pierce pie...@hogranch.com wrote: On 10/25/2013 10:33 AM, Lists wrote: LVM2 complicates administration terribly. huh? it hugely simplifies it for me, when I have lots of drives. I just wish mdraid and lvm were better integrated. to see how it should

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