Displaying 20 results from an estimated 3000 matches similar to: "Weird /dev/dm-0"
2017 Dec 19
0
kernel: blk_cloned_rq_check_limits: over max segments limit., Device Mapper Multipath, iBFT, iSCSI COMSTAR
Hi,
WARNING: Long post ahead
I have an issue when starting multipathd. The kernel complains about "blk_cloned_rq_check_limits:
over max segments limit".
The server in question is configured for KVM hosting. It boots via iBFT to an iSCSI volume. Target
is COMSTAR and underlying that is a ZFS volume (100GB). The server also has two infiniband cards
providing four (4) more paths over SRP
2008 Mar 04
0
Device-mapper-multipath not working correctly with GNBD devices
Hi all,
I am trying to configure a failover multipath between 2 GNBD devices.
I have a 4 nodes Redhat Cluster Suite (RCS) cluster. 3 of them are used for
running services, 1 of them for central storage. In the future I am going to
introduce another machine for central storage. The 2 storage machine are
going to share/export the same disk. The idea is not to have a single point
of failure
2008 Apr 05
0
BUG(?): multipathd confusion leads to kernel panic in Xen 3.2.1-rc2
Hi all. While playing with iSCSI Enterprise Target + multipathd on CentOS
5.1 (both the target and the initiator/multipath/xen box are Cent 5.1), I
encountered a strange fault condition that leads to a kernel panic in a
version of Xen 3.2.1-rc2 pulled from a couple of days ago. My lab consists
of two Clovertown machines with dual GigE into separate switches. The
target box is softraid5
2017 Jan 31
1
multipath show config different in CentOS 7?
Hello,
suppose I want to use a special configuration for my IBM/1814 storage array
luns, then I put something like this in multipath.conf
devices {
device {
vendor "IBM"
product "^1814"
product_blacklist "Universal Xport"
path_grouping_policy "group_by_prio"
path_checker
2010 Sep 17
1
multipath troubleshoot
Hi,
My storage admin just assigned a Lun (fibre) to my server. Then re scanned using
echo "1" > /sys/class/fc_host/host5/issue_lip
echo "1" > /sys/class/fc_host/host6/issue_lip
I can see the scsi device using dmesg
But mpath device are not created for this LUN
Pleas see below. The last 4 should be active and I think this is the problem
Kernel:
2017 Jun 30
2
mdraid doesn't allow creation: device or resource busy
Dear fellow CentOS users,
I have never experienced this problem with hard disk management before
and
cannot explain it to myself on any rational basis.
The setup:
I have a workstation for testing, running latest CentOS 7.3 AMD64. I am
evaluating oVirt and a storage-ha as part of my bachelors thesis.
I have already been running a RAID1 (mdraid, lvm2) for the system and
some oVirt 4.1 testing.
2010 Oct 27
0
[PATCH node] add uninstall module
---
scripts/uninstall.py | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 75 insertions(+), 0 deletions(-)
create mode 100755 scripts/uninstall.py
diff --git a/scripts/uninstall.py b/scripts/uninstall.py
new file mode 100755
index 0000000..9e0baff
--- /dev/null
+++ b/scripts/uninstall.py
@@ -0,0 +1,75 @@
+#!/usr/bin/python
+#
+# uninstall.py - destroys an installed
2002 Nov 29
1
Access Linux PC from other windows machines in the WorkGroup
Dear Sir,
I want to access my Linux shared folder from other
windows PC's in the same work group. I have installed
TurboLinux7.0 in my PC. It has got samba server
shipped with it. I made settings in the /etc/smb.conf
file.
Now we can see my machine from the network
neighbourhood of other machines in the workgroup. But
when we try to access the linux PC from other windows
machine, it gives the
2008 Jun 19
3
lvm with iscsi devices on boot
Hi All,
My CentOS 5.1 server is using iSCSI attached disks connecting
to a dual controller storage array. I have also configured multipathd
to manage the multiple paths. Everything works well, and on
boot the dev nodes are automatically created in /dev/mapper.
On these devices, I have created logical volumes using lvm2.
My problem is that lvm does not recognize these iscsi/multipath
volumes on
2018 May 12
4
Centos 7 on Dell Latitude E6500
Hi,
I tried to install Centos7 x86_64 minimal 1503-01 from an USB
flash drive on my old Dell Latitude E6500 laptop.
boots up in text mode, switches text resolution, writes:
Started Show Plymouth Boot Screen
Reached Target Paths
Reached Target Basic System.
then hangs for some time, eventually starting dracut emergency
shell. log says:
multipathd: sdb: spurious uevent, path
2019 Oct 04
0
CTDB and nfs-ganesha
Looks like this is the actual error:
2019/10/04 09:51:29.174870 ctdbd[17244]: Recovery has started
2019/10/04 09:51:29.174982 ctdbd[17244]: ../ctdb/server/ctdb_server.c:188 ctdb request 2147483554 of type 8 length 48 from node 1 to 0
2019/10/04 09:51:29.175021 ctdbd[17244]: Recovery lock configuration inconsistent: recmaster has NULL, this node has /run/gluster/shared_storage/.CTDB-lockfile,
2015 Feb 05
0
UC multipathd
Yep, that's what I do at home. The trouble for off-net machines is the
download time - over 24 hours for CentOS 7 + epel, and then copy over.
If you don't grab everything, the one package you miss is the one that
stops the update. :-(
>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
>Behalf Of John R Pierce
>Sent: 04
2015 Feb 05
0
UC multipathd
Yep, that's what I do at home. The trouble for off-net machines is the
download time - over 24 hours for CentOS 7 + epel, and then copy over.
If you don't grab everything, the one package you miss is the one that
stops the update. :-(
>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
>Behalf Of John R Pierce
>Sent: 04
2015 Feb 05
0
UC multipathd
Yep, that's what I do at home. The trouble for off-net machines is the
download time - over 24 hours for CentOS 7 + epel, and then copy over.
If you don't grab everything, the one package you miss is the one that
stops the update. :-(
>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
>Behalf Of John R Pierce
>Sent: 04
2015 Feb 05
0
UC multipathd
Yep, that's what I do at home. The trouble for off-net machines is the
download time - over 24 hours for CentOS 7 + epel, and then copy over.
If you don't grab everything, the one package you miss is the one that
stops the update. :-(
>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
>Behalf Of John R Pierce
>Sent: 04
2015 Feb 05
0
UC multipathd
Yep, that's what I do at home. The trouble for off-net machines is the
download time - over 24 hours for CentOS 7 + epel, and then copy over.
If you don't grab everything, the one package you miss is the one that
stops the update. :-(
>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
>Behalf Of John R Pierce
>Sent: 04
2015 Feb 05
0
UC multipathd
Yep, that's what I do at home. The trouble for off-net machines is the
download time - over 24 hours for CentOS 7 + epel, and then copy over.
If you don't grab everything, the one package you miss is the one that
stops the update. :-(
>-----Original Message-----
>From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
>Behalf Of John R Pierce
>Sent: 04
2019 Oct 05
0
CTDB and nfs-ganesha
I?ll have to check out the script issue on Monday.
You said the lock needs to be the same on all nodes. I can do that but this is now in production and restarting the ctdb service forces a failover of the ip, which actually causes a failure of a few of our Kubernetes sql database pods - they freak out and don?t recovery if storage is ripped out from under them.
Is there a way to do this
2020 Oct 06
0
Viewing changelog for packages to be updated
> On Wed, Aug 26, 2020 at 11:18 PM Simon Matter via CentOS
> <centos at centos.org> wrote:
>>
>> > On Wed, Aug 26, 2020 at 2:54 PM Kenneth Porter <shiva at sewingwitch.com>
>> > wrote:
>> >>
>> >> Is there some way to see the RPM changelog entries for a prospective
>> yum
>> >> update? Ideally I'd like to see
2010 May 27
2
Multipathing with Sun 7310
Dear list,
we have a relatively new Sun Storage 7310, where we connect CentOS 5.5
Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades
boot from SAN via qla2xxx, and have no harddisks at all. We want them to
use multipathing from the very beginning, so /boot and / are already seen
by multipathd. Problem is, that the Sun 7310 has two storage heads which
run in