[DRBD-user] permanent syncer rate config

2012-06-26 Thread YesGood
Hi I work with ocfs2 and Gigabit Ethernet network. I read this page http://www.drbd.org/users-guide-8.3/s-configure-syncer-rate.html but I don't understand What is I/O subsystem and Gigabit Ethernet network capable? How can I measure this value? Thanks -- Sayuri ___

[DRBD-user] drbd + ocfs2

2012-06-26 Thread YesGood
Hi I have this problem When I run mkfs -t ocfs2 -N 2 -L ocfs2_drbd0 /dev/drbd0 the result is mkfs.ocfs2: could not create domain while initializing the dlm. As this is an existing OCFS2 volume, it could be mounted on an another node in the cluster. however, as mkfs.ocfs2 is unable to initialize

[DRBD-user] NULL pointer dereference drbd 8.4.1

2012-06-26 Thread Chris Dickson
Hello, Just recently saw this message in my syslog, using drbd 8.4.1. As you can also see I'm runing as Xen dom0. The crash seems to be in the ip_route_output_slow call... is this a kernel bug or a drbd problem? I also attached the error in a text file for convenience. I noticed that Lars patched

Re: [DRBD-user] Concurrent local write detected

2012-06-26 Thread Thilo Uttendorfer
On Tuesday 26 June 2012 at 17:35:38, Florian Haas wrote: > On Tue, Jun 26, 2012 at 10:51 AM, Thilo Uttendorfer > > wrote: > >> Libvirt configuration or qemu/kvm command line please? (don't post > >> them here; pastebin and share the URL instead). > > > > thanks for your help: > > http://pastebin.c

Re: [DRBD-user] Concurrent local write detected

2012-06-26 Thread Florian Haas
On Tue, Jun 26, 2012 at 10:51 AM, Thilo Uttendorfer wrote: >> Libvirt configuration or qemu/kvm command line please? (don't post >> them here; pastebin and share the URL instead). > > thanks for your help: > http://pastebin.com/mZxaJr5a OK, can we see the DRBD config too, please? Cheers, Florian

[DRBD-user] DRBD and Advanced Format hard drives

2012-06-26 Thread Yarovoy Ivan
I am planning to use DRBD with Advanced Format WD hard drives which have 4KB physical sector. Should I suspect a significant performance degradation in this case? All partitions will be aligned on 4KB boundary. Thanks for any help, Ivan ___ drbd-user

Re: [DRBD-user] Concurrent local write detected

2012-06-26 Thread Thilo Uttendorfer
On Monday 25 June 2012 at 17:10:51, Florian Haas wrote: > On Fri, Jun 22, 2012 at 6:53 PM, Thilo Uttendorfer > wrote: > > we have a KVM cluster with each virtual machine running on top of a DRBD > > device. After running this setup for many month we recently saw these log > > messages on two (of