On 11/10/22 00:37, David Christensen wrote:
On 11/9/22 00:24, hw wrote:
> On Tue, 2022-11-08 at 17:30 -0800, David Christensen wrote:
> Hmm, when you can backup like 3.5TB with that, maybe I should put
FreeBSD on my
> server and give ZFS a try. Worst thing that can happen is that it
crashe
Hi Gareth,
- Smartmon/smarctl does not report any hw issues on the HDDs.
- Fragmentation score is 1 (not fragmented at all)
- 18% used only
- RAID status is green (force-resynced)
- rebooted several times
- the IO utilization is almost zero(!) - chart attached
- tried to change the io scheduler o
On 11/9/22 01:35, DdB wrote:
> But
i am satisfied with zfs performance from spinning rust, if i dont fill
up the pool too much, and defrag after a while ...
What is your technique for defragmenting ZFS?
David
On 11/9/22 03:08, Thomas Schmitt wrote:
So i would use at least four independent storage facilities interchangeably.
I would make snapshots, if the filesystem supports them, and backup those
instead of the changeable filesystem.
I would try to reduce the activity of applications on the filesyste
On 11/9/22 05:29, didier gaumet wrote:
- *BSDs nowadays have departed from old ZFS code and use the same source
code stack as Linux (OpenZFS)
AIUI FreeBSD 12 and prior use ZFS-on-Linux code, while FreeBSD 13 and
later use OpenZFS code.
On 11/9/22 05:44, didier gaumet wrote:
> I was usin
On 11/9/22 00:24, hw wrote:
> On Tue, 2022-11-08 at 17:30 -0800, David Christensen wrote:
> Hmm, when you can backup like 3.5TB with that, maybe I should put
FreeBSD on my
> server and give ZFS a try. Worst thing that can happen is that it
crashes and
> I'd have made an experiment that wasn't
On Wed, 2022-11-09 at 19:17 +0100, Linux-Fan wrote:
> hw writes:
>
> > On Wed, 2022-11-09 at 14:29 +0100, didier gaumet wrote:
> > > Le 09/11/2022 à 12:41, hw a écrit :
>
> [...]
>
> > > I am really not so well aware of ZFS state but my impression was that:
> > > - FUSE implementation of ZoL (ZF
On Wed, 2022-11-09 at 18:26 +0100, Christoph Brinkhaus wrote:
> Am Wed, Nov 09, 2022 at 06:11:34PM +0100 schrieb hw:
> [...]
> > FreeBSD has ZFS but can't even configure the disk controllers, so that won't
> > work.
>
> If I understand you right you mean RAID controllers?
yes
> According to my
On Wed, Nov 9, 2022 at 7:27 PM Amn wrote:
>
> Trying to install Gtkmm 4 in a Debian 11 box I do this :
> sudo apt install libgtkmm-4.0-dev
>
> But then I get this error :
>
> Unable to locate package libgtkmm-4.0-dev
>
> What am I doing wrong?
>
# apt-cache search libgtkmm
libgtkmm-2.4-1v5 - C++
On 10/11/22 11:09, Amn wrote:
Trying to install Gtkmm 4 in a Debian 11 box I do this :
sudo apt install libgtkmm-4.0-dev
But then I get this error :
Unable to locate package libgtkmm-4.0-dev
What am I doing wrong?
Amn
I run testing, and latest version here is 3.0-1v5. Alternative versio
On 11/9/22 04:09 PM, Amn wrote:
Trying
to install Gtkmm 4 in a Debian 11 box I do this :
sudo apt install libgtkmm-4.0-dev
But then I get this error :
Unable to locate package libgtkmm-4.0-dev
What am
Trying to install Gtkmm 4 in a Debian 11 box I do this :
sudo apt install libgtkmm-4.0-dev
But then I get this error :
Unable to locate package libgtkmm-4.0-dev
What am I doing wrong?
hw writes:
On Wed, 2022-11-09 at 14:29 +0100, didier gaumet wrote:
> Le 09/11/2022 à 12:41, hw a écrit :
[...]
> I am really not so well aware of ZFS state but my impression was that:
> - FUSE implementation of ZoL (ZFS on Linux) is deprecated and that,
> Ubuntu excepted (classic module?), Z
> On 9 Nov 2022, at 15:12, Charles Curley
> wrote:
>
> On Wed, 9 Nov 2022 09:52:15 +
> Peter von Kaehne wrote:
>
>> My laptop (Thinkpad Yoga11e first gen) on Debian Sid is showing for
>> last few months diverse and variable sound problems.l, particularly
>> with using Bluetooth speaker
Am Wed, Nov 09, 2022 at 06:11:34PM +0100 schrieb hw:
Hi hw,
> On Wed, 2022-11-09 at 14:29 +0100, didier gaumet wrote:
> > Le 09/11/2022 à 12:41, hw a écrit :
> > [...]
> > > In any case, I'm currently tending to think that putting FreeBSD with ZFS
> > > on
> > > my
> > > server might be the best
On Wed, 2022-11-09 at 17:29 +0100, DdB wrote:
> Am 09.11.2022 um 12:41 schrieb hw:
> > In any case, I'm currently tending to think that putting FreeBSD with ZFS on
> > my
> > server might be the best option. But then, apparently I won't be able to
> > configure the controller cards, so that won't
On Wed, 2022-11-09 at 14:29 +0100, didier gaumet wrote:
> Le 09/11/2022 à 12:41, hw a écrit :
> [...]
> > In any case, I'm currently tending to think that putting FreeBSD with ZFS on
> > my
> > server might be the best option. But then, apparently I won't be able to
> > configure the controller ca
On Wed, 2022-11-09 at 14:44 +0100, didier gaumet wrote:
> Le 09/11/2022 à 14:25, hw a écrit :
>
> > I don't think it was, see https://docs.freebsd.org/en/books/handbook/zfs/
> >
> > I does mention performance, but I remember other statements saying that was
> > designed for arrays with 40+ disks
Am 09.11.2022 um 12:41 schrieb hw:
> In any case, I'm currently tending to think that putting FreeBSD with ZFS on
> my
> server might be the best option. But then, apparently I won't be able to
> configure the controller cards, so that won't really work. And ZFS with Linux
> isn't so great becau
On Wed, 9 Nov 2022 09:52:15 +
Peter von Kaehne wrote:
> My laptop (Thinkpad Yoga11e first gen) on Debian Sid is showing for
> last few months diverse and variable sound problems.l, particularly
> with using Bluetooth speakers, but also with Airplay.
You might see what tips or tricks you can
hw wrote on 11/9/22 04:41:
configure the controller cards, so that won't really work. And ZFS with Linux
isn't so great because it keeps fuse in between.
That isn't true. I've been using ZFS with Debian for years without FUSE,
through the ZFSonLinux project.
The only slightly discomfortin
Le 09/11/2022 à 14:25, hw a écrit :
I don't think it was, see https://docs.freebsd.org/en/books/handbook/zfs/
I does mention performance, but I remember other statements saying that was
designed for arrays with 40+ disks and, besides data integrity, with ease of use
in mind. Performance doesn'
Le 09/11/2022 à 12:41, hw a écrit :
[...]
In any case, I'm currently tending to think that putting FreeBSD with ZFS on my
server might be the best option. But then, apparently I won't be able to
configure the controller cards, so that won't really work. And ZFS with Linux
isn't so great because
On Wed, 2022-11-09 at 11:05 +0100, didier gaumet wrote:
> Le 09/11/2022 à 10:27, hw a écrit :
> [...]
> > Yes, I've seen those. I can only wonder how much performance impact VDO
> > would
> > have for backups. And I wonder why it doesn't require as much memory as ZFS
> > seems to need for dedupli
hw (12022-11-08):
> When I want to have 2 (or more) generations of backups, do I actually want
> deduplication? It leaves me with only one actual copy of the data which seems
> to defeat the idea of having multiple generations of backups at least to some
> extent.
The idea of having multiple gene
Le 09/11/2022 à 13:12, hw a écrit :
On Wed, 2022-11-09 at 11:37 +0100, didier gaumet wrote:
[...]
in my opinion you are confusing
deduplicating during backup and incremental/differential backups.
[...]
I don't know why you think that.[...]
Because earlier in a previous message you stated:
"
hw wrote:
>
> The question is rather if it makes sense to have two full backups on the same
> machine for redundancy and to be able to go back in time, or if it's better to
> give up on redundancy and to have only one copy and use snapshots or whatever
> to
> be able to go back in time.
And fo
On Tue, 2022-11-08 at 15:07 +0100, hede wrote:
> On 08.11.2022 05:31, hw wrote:
> > That still requires you to have enough disk space for at least two full
> > backups.
>
> Correct, if you do always full backups then the second run will consume
> full backup space in the first place. (not fully
On Tue, 2022-11-08 at 10:04 -0500, The Wanderer wrote:
> On 2022-11-08 at 09:36, Nicolas George wrote:
>
> > Curt (12022-11-08):
> >
> > > Redundancy sounds a lot like a back up.
> >
> > RAID also sounds a lot like a backup, and the R means redundant.
> >
> > Yet raid is not a backup.
>
> That
On Tue, 2022-11-08 at 09:52 +0100, DdB wrote:
> Am 08.11.2022 um 05:31 schrieb hw:
> > > That's only one point.
> > What are the others?
> >
> > > And it's not really some valid one, I think, as
> > > you do typically not run into space problems with one single action
> > > (YMMV). Running mult
On Wed, 2022-11-09 at 11:37 +0100, didier gaumet wrote:
>
> I am no expert (in Linux, backporting or anything else) and cannot emit
> a viable advice about what your backup plan should be. You are in better
> position to evaluate your needs, your means and design a satisfying
> backup plan acco
On Wed, 2022-11-09 at 12:13 +0100, to...@tuxteam.de wrote:
> On Wed, Nov 09, 2022 at 11:15:15AM +0100, hw wrote:
> > On Wed, 2022-11-09 at 09:46 +0100, to...@tuxteam.de wrote:
>
> [...]
> > > But, as others have said, deduplication at the file system level (or
> > > below,
> > > as VDO does) is ma
On Wed, 2022-11-09 at 10:35 +0100, DdB wrote:
> Am 09.11.2022 um 09:24 schrieb hw:
> > > Learn more about ZFS and invest in hardware to get performance.
> > Hardware like? In theory, using SSDs for cache with ZFS should improve
> > performance. In practise, it only wore out the SSDs after a while
On Tue, 2022-11-08 at 07:19 -0500, Dan Ritter wrote:
> hw wrote:
> > > As you say, deduplication in backup systems is quite common, and works
> > > pretty well. There's also an on-disk non-filesystem utility, rdfind,
> > > which is packaged in Debian. It can discover identical files and make
> > >
On Wed, Nov 09, 2022 at 11:15:15AM +0100, hw wrote:
> On Wed, 2022-11-09 at 09:46 +0100, to...@tuxteam.de wrote:
[...]
> > Pehaps you don't know about rsync's --link-dest option: you can, with rsync,
> > keep generations without duplicating between them.
>
> No, I didn't know that. My intention
Hi,
i wrote:
> > https://github.com/dm-vdo/kvdo/issues/18
hw wrote:
> So the VDO ppl say 4kB is a good block size
They actually say that it's the only size which they support.
> Deduplication doesn't work when files aren't sufficiently identical,
The definition of sufficiently identical pro
On Sun, 6 Nov 2022 06:31:04 -0500, Dan Ritter wrote:
> Kleene, Steven (kleenesj) wrote:
>> 1. A Northgate Omnikey 101 keyboard (from 2006) with a 5-pin DIN cable,
>> currently going via an adapter to a PS/2 port in the desktop;
>
> 2. There are two kinds of PS/2 to USB adapters; one kind will
> w
I am no expert (in Linux, backporting or anything else) and cannot emit
a viable advice about what your backup plan should be. You are in better
position to evaluate your needs, your means and design a satisfying
backup plan accordingly.
What I was underlyning is that in my opinion you are
On Wed, 2022-11-09 at 09:46 +0100, to...@tuxteam.de wrote:
> On Wed, Nov 09, 2022 at 09:39:45AM +0100, hw wrote:
>
> [...]
>
> > When you keep N full generations of backups it's different. Using rsync,
> > you'll
> > only write the changes anyway, switching between the generations. Most of
> >
On Tue, 2022-11-08 at 11:11 +0100, Thomas Schmitt wrote:
> Hi,
>
> hw wrote:
> > I still wonder how VDO actually works.
>
> There is a comparer/decider named UDS which holds an index of the valid
> storage blocks, and a device driver named VDO which performes the
> deduplication and hides its int
Le 09/11/2022 à 10:27, hw a écrit :
[...]
Yes, I've seen those. I can only wonder how much performance impact VDO would
have for backups. And I wonder why it doesn't require as much memory as ZFS
seems to need for deduplication.
It's *only* an hypothesis, but I would suppose that ZFS was desi
My laptop (Thinkpad Yoga11e first gen) on Debian Sid is showing for last few
months diverse and variable sound problems.l, particularly with using Bluetooth
speakers, but also with Airplay.
Current system uses pulse audio and pipe wire. I do not fully understand the
connection between the two.
Am 09.11.2022 um 09:24 schrieb hw:
>> Learn more about ZFS and invest in hardware to get performance.
> Hardware like? In theory, using SSDs for cache with ZFS should improve
> performance. In practise, it only wore out the SSDs after a while, and now
> it's
> not any faster without SSD cache.
>
On Tue, 2022-11-08 at 10:04 +0100, didier gaumet wrote:
> Le 08/11/2022 à 05:13, hw a écrit :
> > On Mon, 2022-11-07 at 13:57 -0500, rhkra...@gmail.com wrote:
> > >
> > >
> > > I didn't (and don't) know much about deduplication (beyond what you might
> > > deduce from the name), so I google and f
On 09.11.2022 05:37, Amn wrote:
I have found impossible to use Bluetooth with my Debian 11 on my :
System Manufacturer Acer
System Model Aspire E5-771G
System Type x64-based PC
System SKU Aspire E5-771G_0880_1_09
Processor Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz, 2401 Mhz, 2
Core
On Wed, Nov 09, 2022 at 09:39:45AM +0100, hw wrote:
[...]
> When you keep N full generations of backups it's different. Using rsync,
> you'll
> only write the changes anyway, switching between the generations. Most of the
> data is being stored N times.
Pehaps you don't know about rsync's --l
On Tue, 2022-11-08 at 10:26 +0100, didier gaumet wrote:
> Le 08/11/2022 à 04:49, hw a écrit :
> [...]
> > When I want to have 2 (or more) generations of backups, do I actually want
> > deduplication? It leaves me with only one actual copy of the data which
> > seems
> > to defeat the idea of havin
Amn wrote on 09/11/2022 at 01:12:12+0100:
> Please disregard this email.
Alright, I'll disregard it.
--
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On Tue, 2022-11-08 at 17:30 -0800, David Christensen wrote:
> On 11/7/22 23:13, hw wrote:
> > On Mon, 2022-11-07 at 21:46 -0800, David Christensen wrote:
>
> > Are you deduplicating?
>
>
> Yes.
>
>
> > Apparently some people say bad things happen when ZFS
> > runs out of memory from deduplic
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