[DRBD-user] some doubt using drbd 7.2

German Gutierrez kuhne_24 at yahoo.com
Wed Aug 18 15:35:36 CEST 2004

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hi Martin

Checking the drbddisk , the help say :

drbddisk [resource] {start|stop|status}

about it , the resource refer to the name of the
resource on the drbd.conf ?  

So , the drbddisk::drbd0 mean that heartbeat execute :
/etc/init.d/drbddisk drbd0 start/stop  ??

It generate to me that no switch to Node2 to Primary .
When i perform a heartbeat stop on Node1, happen that
Node 1 umount the partition and Node2 mount the
partition , but the state Primary continue on Node1 : 



Node1 :

ersion: 0.7.2 (api:75/proto:74)
SVN Revision: 1483:1485 build by root at cpms1.isc,
2004-08-13 22:23:45
 0: cs:Connected st:Primary/Secondary ld:Consistent
    ns:132316 nr:272 dw:132588 dr:357 al:32 bm:71 lo:0
pe:0 ua:0 ap:0


Node2 

version: 0.7.2 (api:75/proto:74)
SVN Revision: 1483:1485 build by root at cpms2.isc,
2004-08-13 23:28:19
 0: cs:Connected st:Secondary/Primary ld:Consistent
    ns:272 nr:132316 dw:132588 dr:4285 al:1 bm:3 lo:0
pe:0 ua:0 ap:0


But if i change on haresource : drbddisk::correo (
name of the resource) if work well . 

Let me know if i'm correct

Thanks


 --- Martin Bene <martin.bene at icomedias.com> wrote: 
> Hi German,
> 
> > 1- What is the best way for to integrate it with
> > heartbeat since the datadisk changed by drbdisk ? 
> >  I remember that datadisk do the work for switch
> > primary / secondary and mount and umount
> partition. On
> > 7.2 ( if i not mistake ) only swith , but not
> mount /
> > umount partition . Let me know a good way for to
> do
> > it.
> 
> Example from my haressources file:
> 
> test-neu1       10.192.64.63 \
>                 drbddisk::drbd1
> Filesystem::/dev/drbd1::/var/dbase::jfs::noatime \
>                 postgresql pg_autovacuum
> MailTo::support at icomedias.com::test-neu-db
> 
> So mount/unmount is handled by using the 
> "Filesystem" ressource script
> provided with heartbeat.
> 
> > 2- If one of my two nodes fail (disk corruption ,
> hw
> > problems , etc) and i need to change a new one for
> > recovery the redundance, How can i do for to
> > recontruct DrBd ? ( forcing syncs , etc ) .
> 
> If you're using internal metadata, drbd should
> realize that the disk is
> new and resync by itself. If you want to explicitely
> resync a device you
> can use "drbdadm invalidate <ressource>" on the side
> with bad data.
> 
> > 4- How can i monitoring that DRBD is working well
> > without testing switchover ?
> 
> You'll definitely want to try failovers before
> putting a system in
> production. you can monitor current status of drbd
> by checking the
> information from cat /proc/drbd.
> 
> Bye, Martin
> 
> _______________________________________________
> drbd-user mailing list
> drbd-user at lists.linbit.com
> http://lists.linbit.com/mailman/listinfo/drbd-user
>  


	
	
		
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