Hi list,
speaking about software raid, not hardware controller based.
I am trying to go for some local OpenSuse machine and adding some
storage to it. Was considering Raid6, and now reading about a bit and
people left and right scaremongering about the larger the disks these
days in the double digit terabyte capacities even, the more likely it
is that during a reconstruction of a raid subsequent errors would
occur.
I would absolutely like to keep my data consistent, and I am not
thinking about double digit terabytes either, would stick to 2TB or
4TB disks, with Raid6 thats at least 4 physical drives.
Now I am wondering if it possible to use a good robust file system
that can add some more parity or check blocks or redundancy on top of
the hardware disks, to absolutely be able to always read my data.
I can't add multiple machines or like those high availability stuff
like clusters and what not I read about DRBD (Distributed Replicated
Block Device), or maybe I am just too scared by those technical terms
or consider myself to be just a simpleton and wanting to keep it
rather simple.
My use case here is also not constant availablity, when a disk needs
to be replaced, so be it, but I don't want to lose my data that I can
not ever read certain parts of it again or such stuff.
The thing that came to my mind was, if there is some file systems that
would add redundancy and robustness onto the mdraid system of the
linux kernel?
Anyone with some useful insights? Roughly speaking, I was considering
some simple pcie esata interfaced controller card and an external case
enclosure with esata port and portmulitplier stuff inside, that can
present at least 4 physical disks as JBOD, just a bunch of disks, so
that the Linux can seem them all separately.
Speed and rebuild times are not my concern, but data persistence and
data integrity. Not even number of physical disks, I could live with
even one of those 8 bay device enclosures and cases that are out there
on the market.
Thanks for any help and hints.
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Hello List
am using Xfce : - in /var/log/warn : i see warning
" The gnome keyring socket is not owned with the same credentials as
the user login: /run/user/1000/keyring-4i77r7/control
2013-11-27T13:27:17.434100+02:00 su: gkr-pam: couldn't unlock the login
keyring "
...............
- any ideas how to fix ?
thanks
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On 27/06/17 12:22, Paul Groves wrote:
>
> On 27/06/17 08:34, Aaron Digulla wrote:
>> xmodmap -pke | less
>
> These keycodes do not seem to match the system. For example in the
> output of this command it says:
>
> keycode 158 = XF86WWW NoSymbol XF86WWW
>
> I ran setkeycodes e020 158
>
> When I press the e020 (Internet) button xev says I have pressed code
> 166 (Back button).
>
> How on earth has this happened? I specified 158 not 166. What have I
> done wrong?
>
>
Just been emailed this link:
https://unix.stackexchange.com/questions/49650/how-to-get-keycodes-for-xmod…
To quote this article:
Here you can see keycode 97 is unused on my system:
|keycode 94 = less greater less greater bar brokenbar keycode 95 = F11
XF86Switch_VT_11 F11 XF86Switch_VT_11 keycode 96 = F12 XF86Switch_VT_12
F12 XF86Switch_VT_12 keycode 97 = keycode 98 = Katakana NoSymbol
Katakana keycode 99 = Hiragana NoSymbol Hiragana |
The keycode X uses and the keycode the kernel uses are OFF BY 8 for
"historical reasons". So take 97 - 8 = 89 and use 89 with the
setkeycodes command (again as root):
So to make my vol - button work (xmodmap keycode 122 -8 = 114)
setkeycodes e01e 114
This has worked! I have re-mapped apl the buttons apart from my hotkeys.
>> No but there are lots of uncommon keycodes which you can use. For
>> example, F13-F35 or KP_F1...KP_F4.
>
> In the output of the command xmodmap -pke | less there are no codes
> for F13-F35 or KP_F1 etc
>
> I would like to set HK1 - HK4 to F13 - F16 How do I find the keycodes
> for these buttons
Still looking for the keycodes for F13-16
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All,
I bought a used iSCSI based Drobo in 2016 with 50TB in it. It works
great, but it isn't fast by today's standards. (100 MB/sec absolute
max). And I never got it to work from openSUSE (Windows and Mac did
work).
I now need to buy something similar, but with fast I/O and Linux
support: 10 Gbit Ethernet and fibre-channel may be my only options?
Or are there point-to-point SAS external racks I should consider?
Also, I will likely want to put a SSD based cache in the mix at some
point. It could be integrated into the storage subsystem, or I could
use something like bcache and have the SSD be in the server,. It just
needs to be reliable and fast.
Recommendations? (I'm thinking used and $10K at the high-end for the
subsystem including PCIx cards and switches, if needed.)
== details
I need to buy a server with 50TB usable disk for a production
environment. A high speed disk subsystem is critical. And the project
may scale up over time.
It doesn't need to be a fail-over cluster, just a single server. I'm
looking at used equipment most likely.
I was thinking one with 4 CPU sockets would let me start with 2 CPUs
and then expand to 4 later on. Lots of RAM capacity would also be
great.
My first thought was to get a Dell R920 and throw a bunch of disks in it.
https://goo.gl/images/x3Rfj2
24 disk slots!
But then I looked at what size drives are available for those slots:
2.5 inch. I only see 2TB drives max.
I'm hoping to use a Dell server because it's the preferred brand at my
(new) job. Unless I'm missing something a standalone rack mount Dell
won't work.
So, now I'm looking at a used R820 most likely and some sort of disk
subsystem to support it. I picked it because it is only a 5-year old
design and it has 4 CPU sockets I can expand into as the server demand
increases over time. Also 3TB max ram is way above what this will
require, even long term.
https://media.adn.de/media/DE/DocLib/Poweredge_Easy_Matrix.pdf
A used, barebones R820 can be had for under $2K. Just add CPUs and ram.
Greg
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This is an OpenPGP/MIME signed message (RFC2440, RFC3156).
--=_MIME_CONTENT_BREAK_=_ZVSGRBXMZBOOXUGBRBCHOBMGKKNVGJR_=
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline; filename="message.txt"
Content-Transfer-Encoding: quoted-printable
Hello group,
I have on several machines this problem: they are continously trying to=20
access the floppy drives. Two drives already defective, due to the=20
mechanic stress.
dmesg shows following continously:
[1537682.559487] sd 0:0:3:0: [sdc] Read Capacity(10) failed: Result:=20
hostbyte=3DDID_OK driverbyte=3DDRIVER_SENSE
[1537682.559496] sd 0:0:3:0: [sdc] Sense Key : Not Ready [current]
[1537682.559498] sd 0:0:3:0: [sdc] Add. Sense: Logical unit not ready,=20
cause not reportable
[1537682.656688] sd 0:0:3:0: [sdc] Spinning up disk...
[1537683.668046]=20
............................................................................=
..................not=20
responding...
[1537783.093938] sd 0:0:3:0: [sdc] Spinning up disk...
[1537784.104049]=20
............................................................................=
..................not=20
responding...
this can't be the wanted behaviour for any removable storage devices?
Any Hints?
Thank you and have a nice weekend
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Anyone using a CANBus card with openSUSE? We will soon have a MobilEye
device that we want to test integrating with our system. And it speaks
CANBus. We are on our own to provide the CANBus card. So something
that is known to play nice with Linux/openSUSE is what we are looking
for. So any suggestions or experiences are welcome.
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Roger Oberholtzer
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Hi,
I manually added repository packman on Leap 15.0 (by URL). I then tried to
change priority from 99 to 98. Yast warned:
Repository 'Ext_Packman' is managed by service".
Your manual changes might be reset by the next service refresh!
What on earth is that!?
Note: The string «service".», I guess that '"' was '"', but I can not
actually make it out what it was, too tiny.
- --
Cheers
Carlos E. R.
(from 42.2 x86_64 "Malachite" at Telcontar)
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I see
> ps -ef | grep init
anton 505 1 0 14:35 ? 00:00:00 kdeinit4: kdeinit4 Runnin e
anton 506 505 0 14:35 ? 00:00:00 kdeinit4: klauncher [kdei e
anton 508 1 0 14:35 ? 00:00:00 kdeinit4: kded4 [kdeinit]
anton 2368 31300 0 18:37 pts/1 00:00:00 grep --color=auto init
anton 31121 1 0 12:37 ? 00:00:00 /usr/bin/dbus-launch --sh-syntax
--exit-with-session /home/anton/.xinitrc
anton 31168 1 0 12:37 ? 00:00:00
/usr/lib64/libexec/kf5/start_kdeinit --kded +kcminit_startup
anton 31169 1 0 12:37 ? 00:00:00 kdeinit5: Running...
anton 31173 31169 0 12:37 ? 00:00:01 kded5 [kdeinit5]
anton 32194 31169 0 12:37 ? 00:00:01 file.so [kdeinit5] file
local:/run/user/501/klauncherJ31170.1.slave-socket
local:/run/user/501/dolphinn31296.4.slave-socket
> tail ~/.xinitrc
# pland &
#
# finally start the window manager
#
unset WINDOW_MANAGER STARTUP
exec $WINDOWMANAGER ${1+"$@"}
# call failsafe
exit 0
> env | grep WIN
WINDOWID=69206021
WINDOWMANAGER=/usr/bin/startkde
WINDOWPATH=7
> rpm -qf /usr/bin/startkde
plasma5-workspace-5.8.7-11.1.x86_64
THAT is _supposed_ to check for an already running KDE session.
There is a function 'kcheckrunning' at /usr/bin/
So why do I get both 4 & 5?
--
A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting frowned upon?
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Finally after a long search my selection for new laptop is the MSI GE63 7RD.
Several internet tests were quite positive and -most important- it is very silent.
Also the Ubuntu community said that these MSI laptops are quite "standard"
stuff, only few tweaks, Optimus seems to be one thing to tweak.
But:
after having bought this machine I have to realize that openSUSE Leap 15 does
not seem to be ready for this laptop (although amazon.de lists this machine
since July 3rd 2017).
There is a bunch of error messages when booting it up from USB after setting
Secure boot to off and fast boot also.
The worst one seems to be
"NMI watchdog : BUG soft lockup CPU4 stuck for 22s!"
afterwards SuSE15 seems to be stuck and I have to turn off by switch.
I also tried tumbleweed on a USB stick - same error.
Actually I was able to install Ubuntu 18.04 LTS with a tweak of
bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi
under Windows 10 because otherwise the grub boot manager is not shown.
Everything else seems to work after doing that tweak with nVidia which is
described in internet all over.
Does this mean I have to say goodbye to SuSE on my Laptop?
After approx 28 years using SuSE?
:-/
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Old HP computer so possible hardware issues.
I had issues during the dup to 20180628 and need to use the rescue
system to repair grub. I cannot find an email I had with steps including
'bind -o' in them so if some kind soul could sent the procedure I would
appreciate it. I've already repaired the filesystem but need to repair
grub as well.
Many thanks.
--
Ken Schneider
SuSe since Version 5.2, June 1998
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