Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
> whenever i try to mount the drbd/0 device on the secondary,
> i get the following ...
You cannot mount a drbd device unless it is marked as primary. Not even read only.
> ---snipp----------
> www-2:/# mount -t ext3 /dev/drbd/0 /ha/
This seems wrong /dev/drbd/0 it should be /dev/drbd0, but then again, it may be
differet on debian than in RHEL. Please correct me if I am wrong.
> mount: block device /dev/drbd/0 is write-protected, mounting read-only
> mount: /dev/drbd/0 already mounted or /ha/ busy
This message also comes out when your drbd device is not set up as primary on
any of your two test servers. Say you have not worked out the heartbeat
configuration and you reboot your two servers, then when they come up, they are
just secondary/secondary. So when you try to manually mount /dev/drbd0 on /ha
then it does not work.
So you need to manually run:
drbdadm primary YOUR_RESOURCE_NAME_AS_TYPED_IN_DRBD.CONF
Then you can mount it on the server that is acting as drbd primary.
I am in the process of setting up a mail and web server and I have decent
install notes of what I have done so far to get drbd, heartbeat and starting
apache on a RHEL4 machine. Still a lot to do to finish my configurations, but I
can send you my install notes so far if you want me to. Just e-mail me directly.
Diego
Diego
> ---snapp----------
>
> the second one :
>
> i'd like to make some webspace ha - this should work i think
> but as I'm lazy, i concidered using drbd for a mysql instance
> but there's my question - are there any problems known with that ?
>
> for sure i will sort all writeaccess out and direct it to the master
> but this seems to me more smart than using the mysql - replication
>
> Is there anyone who has this as a working setup or has experiences with that
> ?
>
> the third one :
> at the moment there are only 2boxes, but a third and a forth a prepared ...
> but i searched the half web for that and had nothing found -
>
> so is it possible to have 1 primary and 3 or more secondarys ?
> What about choosing the next primary - can heartbeat do that job - or is
> this just for the head-to-head config everywhere mentioned with 1 primary and
> 1
> secondary ?
>
> ________________
>
> thanks for your help
>
> malte
>
>
>
> ------------snapp-----------------------------
>
> www-1:/ha# cat /proc/drbd
> version: 0.7.11 (api:77/proto:74)
> SVN Revision: 1807 build by root at srv1, 2005-06-16 20:12:17
> 0: cs:Connected st:Primary/Secondary ld:Consistent
> ns:43854068 nr:0 dw:720740 dr:43133477 al:617 bm:2675 lo:0 pe:0 ua:0
> ap:0
>
>
> www-2:/# cat /proc/drbd
> version: 0.7.11 (api:77/proto:74)
> SVN Revision: 1807 build by root at srv1, 2005-06-16 20:12:17
> 0: cs:Connected st:Secondary/Primary ld:Consistent
> ns:0 nr:43854068 dw:43854068 dr:0 al:0 bm:2675 lo:0 pe:0 ua:0 ap:0
>
>
> ------------snippp---------------------
>
> resource r0 {
> protocol C;
> startup {
> degr-wfc-timeout 480; # 2 minutes.
> }
> disk { on-io-error detach; }
> net {
> timeout 60;
> connect-int 10;
> ping-int 10;
> max-buffers 4096;
> }
> syncer {
> rate 10M;
> group 1;
> al-extents 257;
> }
> on www-1 {
> device /dev/drbd/0;
> disk /dev/hda3;
> address 85.XX.XX.XX:7788;
> meta-disk internal;
> }
>
> on www-2 {
> device /dev/drbd/0;
> disk /dev/hda3;
> address 85.XX.XX.XX:7788;
> meta-disk internal;
> }
> }
>
>
>
> ----------------------------------------------------------------
> This message was sent using IMP, the Internet Messaging Program.
> _______________________________________________
> drbd-user mailing list
> drbd-user at lists.linbit.com
> http://lists.linbit.com/mailman/listinfo/drbd-user
>
-------------------------------------------------
This mail sent through IMP: http://horde.org/imp/