Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Fri, Nov 30, 2007 at 10:58:25AM +0100, Andreas Haase - evolver group wrote:
> Hi list,
>
> I tried to convert a drbd ressource from version 0.7.25 to 8.0.7 following
> Florians upgrade guide. Problem is that drbdadm does not recognize the v07
> Magic number and offers to generate a new meta data block.
could you please send me (private mail) the output of
xxd -s -$[128*1024*1024+4096] -l 8192 -a /dev/cciss/c0d0p1
thanks.
> I've attached drbd.conf files for both versions. What can I do to convert
> the drbd ressource without risk of data loss?
after you send me the output of xxd,
if you make sure you have had them Connected Secondary/Secondary before,
you can well let drbdmeta create new meta data, no problem.
so, send me that xxd output,
create the new meta data on both nodes,
chose e.g. rmcfs01, and say
rmcfs01# drbdadm attach r0
# drbdadm -- -o primary r0
# drbdadm adjust r0
rmcfs02# drbdadm adjust r0
and you'd get a full sync from rmcfs01 -> rmcfs02.
you can mount and use it on rmcfs01 already
right after you made it primary.
sorry for that,
likely the last "fix" for external meta data conversion
broke internal meta data conversion again.
> global { usage-count no; }
> common {
> syncer { rate 100M; }
>
> protocol C;
> handlers {
you are aware that these handlers will, if they ever are triggered,
**switch of the box hard**
immediately! so you better mean it.
> pri-on-incon-degr "echo o > /proc/sysrq-trigger ; halt -f";
> pri-lost-after-sb "echo o > /proc/sysrq-trigger ; halt -f";
> local-io-error "echo o > /proc/sysrq-trigger ; halt -f";
> }
>
> disk {
> on-io-error call-local-io-error;
> }
>
> net {
> max-buffers 2048;
you probably want more like 20000 there.
> ko-count 4;
> }
> }
>
> resource r0 {
> on rmcfs01 {
> device /dev/drbd0;
> disk /dev/cciss/c0d0p1;
> address 172.17.4.1:7789;
> meta-disk internal;
> }
>
> on rmcfs02 {
> device /dev/drbd0;
> disk /dev/cciss/c0d0p1;
> address 172.17.4.2:7789;
> meta-disk internal;
> }
> }
cheers,
--
: Lars Ellenberg Tel +43-1-8178292-55 :
: LINBIT Information Technologies GmbH Fax +43-1-8178292-82 :
: Vivenotgasse 48, A-1120 Vienna/Europe http://www.linbit.com :