[opensuse] /dev/devicemapper on leap 15
Hello, I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used I have never seen this before is this true? if so what is the use of devicemapper at this step thanks jdd -- http://dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ? if so, no I have no problem using /dev/sdX. -- Per Jessen, Zürich (26.8°C) http://www.hostsuisse.com/ - dedicated server rental in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 09/06/2018 à 18:28, Per Jessen a écrit :
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ?
no that I can see
if so, no I have no problem using /dev/sdX.
at install time? last time I couldn't thanks jdd -- http://dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
jdd@dodin.org wrote:
Le 09/06/2018 à 18:28, Per Jessen a écrit :
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ?
no that I can see
So what is 'lvw' ?
if so, no I have no problem using /dev/sdX.
at install time? last time I couldn't
Definitely, no problem. -- Per Jessen, Zürich (25.5°C) http://www.hostsuisse.com/ - dedicated server rental in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 09/06/2018 à 18:58, Per Jessen a écrit :
jdd@dodin.org wrote:
Le 09/06/2018 à 18:28, Per Jessen a écrit :
jdd@dodin.org wrote:
when no lvw is used
lvm ?
no that I can see
So what is 'lvw' ?
oh, yes, lvm, sorry I didn't notice the typo :-) thanks jdd -- http://dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
09.06.2018 19:28, Per Jessen пишет:
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ?
if so, no I have no problem using /dev/sdX.
https://forums.opensuse.org/showthread.php/531551-Multiboot-openSUSE-Leap-15... -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Andrei Borzenkov wrote:
09.06.2018 19:28, Per Jessen пишет:
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ?
if so, no I have no problem using /dev/sdX.
https://forums.opensuse.org/showthread.php/531551-Multiboot-openSUSE-Leap-15...
Any chance of a short summary? I too use multipath, but I don't think we've upgraded any multipathed server to leap15 yet. I don't know if jdd uses multipathing. -- Per Jessen, Zürich (20.2°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
09.06.2018 22:34, Per Jessen пишет:
Andrei Borzenkov wrote:
09.06.2018 19:28, Per Jessen пишет:
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ?
if so, no I have no problem using /dev/sdX.
https://forums.opensuse.org/showthread.php/531551-Multiboot-openSUSE-Leap-15...
Any chance of a short summary? I too use multipath, but I don't think we've upgraded any multipathed server to leap15 yet. I don't know if jdd uses multipathing.
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 10/06/2018 à 16:05, Andrei Borzenkov a écrit :
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active.
I don't even know what it is :-( thanks jdd -- http://dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
jdd@dodin.org wrote:
Le 10/06/2018 à 16:05, Andrei Borzenkov a écrit :
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active.
I don't even know what it is :-(
It's usually for storage area networks where a disk may be accessed via multiple different paths, for redundancy. It has no place in a default openSUSE install. -- Per Jessen, Zürich (23.8°C) http://www.dns24.ch/ - free dynamic DNS, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2018-06-10 21:13, Per Jessen wrote:
jdd@dodin.org wrote:
Le 10/06/2018 à 16:05, Andrei Borzenkov a écrit :
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active.
I don't even know what it is :-(
It's usually for storage area networks where a disk may be accessed via multiple different paths, for redundancy. It has no place in a default openSUSE install.
You mean a machine accessing a single machine via two different cables and two chipsets? Also the hard disk has two sata ports? Wow. Makes a lot of sense, but I have not seen it. Not in my pay grade What device does Linux see then, /dev/what? -- Cheers / Saludos, Carlos E. R. (from 42.3 x86_64 "Malachite" at Telcontar)
Carlos E. R. wrote:
On 2018-06-10 21:13, Per Jessen wrote:
jdd@dodin.org wrote:
Le 10/06/2018 à 16:05, Andrei Borzenkov a écrit :
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active.
I don't even know what it is :-(
It's usually for storage area networks where a disk may be accessed via multiple different paths, for redundancy. It has no place in a default openSUSE install.
You mean a machine accessing a single machine via two different cables and two chipsets? Also the hard disk has two sata ports?
Typically either with fibre, FoE or iSCSI. One storage host has two fibre HBAs, each connected to a fibre switch. The client has two fibres, each connected to a switch. A disk (e.g. an LVM logical volume) is now available over two separate paths. If an HBA fails in the storage host, or one of the fibre switches fail or an HBA fails in the client, there will still be a working path.
Wow. Makes a lot of sense, but I have not seen it. Not in my pay grade
You can set this up at home. 2nd hand fibre equipment is very cheap, but it's also easily done with ethernet. (if you want to play with it).
What device does Linux see then, /dev/what?
You can assign aliases, but otherwise /dev/mapper/<wwid>. -- Per Jessen, Zürich (20.4°C) http://www.dns24.ch/ - free dynamic DNS, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 10/06/2018 à 21:13, Per Jessen a écrit :
It's usually for storage area networks where a disk may be accessed via multiple different paths, for redundancy. It has no place in a default openSUSE install.
ok thanks jdd -- http://dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Andrei Borzenkov wrote:
09.06.2018 22:34, Per Jessen пишет:
Andrei Borzenkov wrote:
09.06.2018 19:28, Per Jessen пишет:
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ?
if so, no I have no problem using /dev/sdX.
https://forums.opensuse.org/showthread.php/531551-Multiboot-openSUSE-Leap-15...
Any chance of a short summary? I too use multipath, but I don't think we've upgraded any multipathed server to leap15 yet. I don't know if jdd uses multipathing.
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active.
Wow, that's new. -- Per Jessen, Zürich (23.8°C) http://www.cloudsuisse.com/ - your owncloud, hosted in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
10.06.2018 22:12, Per Jessen пишет:
Andrei Borzenkov wrote:
09.06.2018 22:34, Per Jessen пишет:
Andrei Borzenkov wrote:
09.06.2018 19:28, Per Jessen пишет:
jdd@dodin.org wrote:
Hello,
I test Leap 15 on various hardware and noticed that it seems to be necessary to use /dev/devicemapper everywhere in place of /dev/sdX, when no lvw is used
lvm ?
if so, no I have no problem using /dev/sdX.
https://forums.opensuse.org/showthread.php/531551-Multiboot-openSUSE-Leap-15...
Any chance of a short summary? I too use multipath, but I don't think we've upgraded any multipathed server to leap15 yet. I don't know if jdd uses multipathing.
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active.
Wow, that's new.
This is apparently specific to Live ISO. I just booted Live GNOME on QEMU and multipath is active. "multipath -c /dev/sda" says "not valid multipath device" :) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
10.06.2018 22:12, Per Jessen пишет:
Andrei Borzenkov wrote:
09.06.2018 22:34, Per Jessen пишет:
Andrei Borzenkov wrote:
09.06.2018 19:28, Per Jessen пишет:
jdd@dodin.org wrote: > Hello, > > I test Leap 15 on various hardware and noticed that it seems to be > necessary to use /dev/devicemapper everywhere in place of > /dev/sdX, when no lvw is used
lvm ?
if so, no I have no problem using /dev/sdX.
https://forums.opensuse.org/showthread.php/531551-Multiboot-openSUSE-Leap-> > 15-grub2-mkconfig-does-not-detect-other-installed-OS?
Any chance of a short summary? I too use multipath, but I don't think we've upgraded any multipathed server to leap15 yet. I don't know if jdd uses multipathing.
Clean installation on desktop with SATA controller suddenly ends up with multipathing being active.
Wow, that's new.
This is apparently specific to Live ISO. I just booted Live GNOME on QEMU and multipath is active. "multipath -c /dev/sda" says "not valid multipath device" :) Thanks Andrei, since you've found out what this bug actually is about, would you be so kind to file a bugreport ? AFAIK the live images aren't frozen like
Op zondag 10 juni 2018 23:06:43 CEST schreef Andrei Borzenkov: p=2868962#post2868962> the distro itself is, someone might be able to fix this. -- Gertjan Lettink a.k.a. Knurpht openSUSE Board Member openSUSE Forums Team -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 10/06/2018 à 23:06, Andrei Borzenkov a écrit :
This is apparently specific to Live ISO.
oh, yes, the install was probably made with live iso thanks jdd -- http://dodin.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (5)
-
Andrei Borzenkov -
Carlos E. R. -
jdd＠dodin.org -
Knurpht ＠ openSUSE -
Per Jessen