On Mon, 2022-11-14 at 20:37 +0100, Linux-Fan wrote:
> hw writes:
>
> > On Fri, 2022-11-11 at 22:11 +0100, Linux-Fan wrote:
> > > hw writes:
> > > > On Thu, 2022-11-10 at 22:37 +0100, Linux-Fan wrote:
> [...]
> > How do you intend to copy files at any other level than at file level? At
> > that
hw writes:
On Fri, 2022-11-11 at 22:11 +0100, Linux-Fan wrote:
> hw writes:
> > On Thu, 2022-11-10 at 22:37 +0100, Linux-Fan wrote:
>
> [...]
>
> > > If you do not value the uptime making actual (even
> > > scheduled) copies of the data may be recommendable over
> > > using a RAID bec
On 11/13/22 13:02, hw wrote:
On Fri, 2022-11-11 at 07:55 -0500, Dan Ritter wrote:
hw wrote:
On Thu, 2022-11-10 at 20:32 -0500, Dan Ritter wrote:
Linux-Fan wrote:
[...]
* RAID 5 and 6 restoration incurs additional stress on the other
disks in the RAID which makes it more likely that one of
On Fri, 2022-11-11 at 22:11 +0100, Linux-Fan wrote:
> hw writes:
>
> > On Thu, 2022-11-10 at 22:37 +0100, Linux-Fan wrote:
>
> [...]
>
> > > If you do not value the uptime making actual (even
> > > scheduled) copies of the data may be recommendable over
> > > using a RAID because such
On Fri, 2022-11-11 at 07:55 -0500, Dan Ritter wrote:
> hw wrote:
> > On Thu, 2022-11-10 at 20:32 -0500, Dan Ritter wrote:
> > > Linux-Fan wrote:
> > >
> > >
> > > [...]
> > > * RAID 5 and 6 restoration incurs additional stress on the other
> > > disks in the RAID which makes it more likely th
hw writes:
On Thu, 2022-11-10 at 22:37 +0100, Linux-Fan wrote:
[...]
> If you do not value the uptime making actual (even
> scheduled) copies of the data may be recommendable over
> using a RAID because such schemes may (among other advantages)
> protect you from accidental f
On Fri, Nov 11, 2022 at 09:03:45AM +0100, hw wrote:
On Thu, 2022-11-10 at 23:12 -0500, Michael Stone wrote:
The advantage to RAID 6 is that it can tolerate a double disk failure.
With RAID 1 you need 3x your effective capacity to achieve that and even
though storage has gotten cheaper, it hasn't
hw wrote:
> On Thu, 2022-11-10 at 20:32 -0500, Dan Ritter wrote:
> > Linux-Fan wrote:
> >
> >
> > [...]
> > * RAID 5 and 6 restoration incurs additional stress on the other
> > disks in the RAID which makes it more likely that one of them
> > will fail. The advantage of RAID 6 is that it ca
Am 11.11.2022 um 07:36 schrieb hw:
> That's on https://docs.freebsd.org/en/books/handbook/zfs/
>
> I don't remember where I read about 8, could have been some documentation
> about
> FreeNAS.
Well, OTOH there do exist some considerations, which may have lead to
that number sticking somewhere, bu
On Thu, 2022-11-10 at 23:12 -0500, Michael Stone wrote:
> On Thu, Nov 10, 2022 at 08:32:36PM -0500, Dan Ritter wrote:
> > * RAID 5 and 6 restoration incurs additional stress on the other
> > disks in the RAID which makes it more likely that one of them
> > will fail.
>
> I believe that's mostly
On Thu, 2022-11-10 at 20:32 -0500, Dan Ritter wrote:
> Linux-Fan wrote:
>
>
> [...]
> * RAID 5 and 6 restoration incurs additional stress on the other
> disks in the RAID which makes it more likely that one of them
> will fail. The advantage of RAID 6 is that it can then recover
> from tha
On Thu, 2022-11-10 at 22:37 +0100, Linux-Fan wrote:
> hw writes:
>
> > 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'd
> > > > have to use md
On Thu, 2022-11-10 at 14:28 +0100, DdB wrote:
> Am 10.11.2022 um 13:03 schrieb Greg Wooledge:
> > If it turns out that '?' really is the filename, then it becomes a ZFS
> > issue with which I can't help.
>
> just tested: i could create, rename, delete a file with that name on a
> zfs filesystem ju
On Thu, 2022-11-10 at 08:48 -0500, Dan Ritter wrote:
> hw wrote:
> > And I've been reading that when using ZFS, you shouldn't make volumes with
> > more
> > than 8 disks. That's very inconvenient.
>
>
> Where do you read these things?
I read things like this:
"Sun™ recommends that the number
On Thu, Nov 10, 2022 at 05:54:00AM +0100, hw wrote:
ls -la
insgesamt 5
drwxr-xr-x 3 namefoo namefoo 3 16. Aug 22:36 .
drwxr-xr-x 24 root root 4096 1. Nov 2017 ..
drwxr-xr-x 2 namefoo namefoo 2 21. Jan 2020 ?
namefoo@host /srv/datadir $ ls -la '?'
ls: Zugriff auf ? nicht möglich:
On Thu, Nov 10, 2022 at 08:32:36PM -0500, Dan Ritter wrote:
* RAID 5 and 6 restoration incurs additional stress on the other
disks in the RAID which makes it more likely that one of them
will fail.
I believe that's mostly apocryphal; I haven't seen science backing that
up, and it hasn't been
Linux-Fan wrote:
> I think the arguments of the RAID5/6 critics summarized were as follows:
>
> * Running in a RAID level that is 5 or 6 degrades performance while
> a disk is offline significantly. RAID 10 keeps most of its speed and
> RAID 1 only degrades slightly for most use cases.
>
> *
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Am 10.11.2022 um 22:37 schrieb Linux-Fan:
> Ext4 still does not offer snapshots. The traditional way to do
> snapshots outside of fancy BTRFS and ZFS file systems is to add LVM
> to the equation although I do not have any useful experience with
> tha
hw writes:
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'd
> > have to use mdadm to create a RAID5 (or use the hardware RAID but that
> > isn't
>
> AFAIK BT
On Thu, Nov 10, 2022 at 06:54:31PM +0100, hw wrote:
> Ah, yes. I tricked myself because I don't have hd installed,
It's just a symlink to hexdump.
lrwxrwxrwx 1 root root 7 Jan 20 2022 /usr/bin/hd -> hexdump
unicorn:~$ dpkg -S usr/bin/hd
bsdextrautils: /usr/bin/hd
unicorn:~$ dpkg -S usr/bin/hex
On Thu, 2022-11-10 at 09:30 -0500, Greg Wooledge wrote:
> On Thu, Nov 10, 2022 at 02:48:28PM +0100, hw wrote:
> > On Thu, 2022-11-10 at 07:03 -0500, Greg Wooledge wrote:
>
> [...]
> > printf '%s\0' * | hexdump
> > 000 00c2 6177 7468
> > 007
>
> I dislike this outp
Brad Rogers wrote:
> On Thu, 10 Nov 2022 08:48:43 -0500
> Dan Ritter wrote:
>
> Hello Dan,
>
> >8 is not a magic number.
>
> Clearly, you don't read Terry Pratchett. :-)
In the context of ZFS, 8 is not a magic number.
May you be ridiculed by Pictsies.
-dsr-
On Thu, 10 Nov 2022 08:48:43 -0500
Dan Ritter wrote:
Hello Dan,
>8 is not a magic number.
Clearly, you don't read Terry Pratchett. :-)
--
Regards _ "Valid sig separator is {dash}{dash}{space}"
/ ) "The blindingly obvious is never immediately apparent"
/ _)rad
On Thu, Nov 10, 2022 at 02:48:28PM +0100, hw wrote:
> On Thu, 2022-11-10 at 07:03 -0500, Greg Wooledge wrote:
> good idea:
>
> printf %s * | hexdump
> 000 77c2 6861 0074
> 005
Looks like there might be more than one file here.
> > If you misrepresented the situat
hw wrote:
> And I've been reading that when using ZFS, you shouldn't make volumes with
> more
> than 8 disks. That's very inconvenient.
Where do you read these things?
The number of disks in a zvol can be optimized, depending on
your desired redundancy method, total number of drives, and
tole
On Thu, 2022-11-10 at 07:03 -0500, Greg Wooledge wrote:
> On Thu, Nov 10, 2022 at 05:54:00AM +0100, hw wrote:
> > ls -la
> > insgesamt 5
> > drwxr-xr-x 3 namefoo namefoo 3 16. Aug 22:36 .
> > drwxr-xr-x 24 root root 4096 1. Nov 2017 ..
> > drwxr-xr-x 2 namefoo namefoo 2 21. Jan 2020
Am 10.11.2022 um 13:03 schrieb Greg Wooledge:
> If it turns out that '?' really is the filename, then it becomes a ZFS
> issue with which I can't help.
just tested: i could create, rename, delete a file with that name on a
zfs filesystem just as with any other fileystem.
But: i recall having seen
On Thu, 2022-11-10 at 10:59 +0100, DdB wrote:
> Am 10.11.2022 um 04:46 schrieb hw:
> > On Wed, 2022-11-09 at 18:26 +0100, Christoph Brinkhaus wrote:
> > > Am Wed, Nov 09, 2022 at 06:11:34PM +0100 schrieb hw:
> > > [...]
> [...]
> > >
> > Why would partitions be better than the block device itself?
On Thu, 2022-11-10 at 10:34 +0100, Christoph Brinkhaus wrote:
> Am Thu, Nov 10, 2022 at 04:46:12AM +0100 schrieb hw:
> > On Wed, 2022-11-09 at 18:26 +0100, Christoph Brinkhaus wrote:
> > > Am Wed, Nov 09, 2022 at 06:11:34PM +0100 schrieb hw:
> > > [...]
> [...]
> > >
> >
> > Why would partitions
On Thu, Nov 10, 2022 at 05:54:00AM +0100, hw wrote:
> ls -la
> insgesamt 5
> drwxr-xr-x 3 namefoo namefoo3 16. Aug 22:36 .
> drwxr-xr-x 24 rootroot4096 1. Nov 2017 ..
> drwxr-xr-x 2 namefoo namefoo2 21. Jan 2020 ?
> namefoo@host /srv/datadir $ ls -la '?'
> ls: Zugriff auf ? nic
Am 10.11.2022 um 04:46 schrieb hw:
> 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 R
Am Thu, Nov 10, 2022 at 04:46:12AM +0100 schrieb hw:
> 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
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
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
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 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
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