[DRBD-user] oracle on drbd failed

Mia Lueng xiaozunvlg at gmail.com
Mon Sep 3 16:59:12 CEST 2012

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

resource drbd0{
        protocol A;

                on-io-error pass_on;

                rate 100M;
                csums-alg md5;
                verify-alg md5;
#                c-plan-ahead 20;
                c-fill-target 0;
#               c-delay-target 30;
#                c-max-rate 200M;
 #               c-min-rate 4M;

#               on-congestion pull-ahead;
#               congestion-fill 128M;
                ping-timeout 30;
                ping-int 30;
                data-integrity-alg crc32c;

        on "kvm3.hgccp" {
                device    /dev/drbd0;
                disk      /dev/vg_kvm3/drbd0;
                meta-disk  internal;


        on "kvm4.hgccp" {
                device    /dev/drbd0;
                disk      /dev/vg_kvm4/drbd0;
                meta-disk  internal;


os: rhel 6.3   x86_64, kernel version is 2.6.32-220.el6.x86_64

now we have not used proxy yet. I just test this on local lan
environment.  If the test pass, we will install it on WAN enviroment.

2012/9/3 Lars Ellenberg <lars.ellenberg at linbit.com>:
> On Sun, Aug 26, 2012 at 11:10:44AM +0800, Mia Lueng wrote:
>> Hi All:
>> I built a cluster to protect oracle database. The oracle db file
>> stored on the drbd(8.3.13)  device using protocol A.  But sometime
>> oracle can not be failover  when the primary node is down. Here is the
>> testing step
> Please show the drbd configuration
> (drbdadm dump, or even better, drbdsetup 0 show)
> and cat /proc/drbd.
> Also, what is the kernel version, distribution/platform?
> What does the rest of the IO stack look like?
>> How can I avoid there errors and let oracle be failover at any time
>> the primary node crash?  Thanks.
>> BTW: protocol A is needed because the cluster running  WAN  and using a proxy.
> Proxy, as in "drbd-proxy"?
> Why not contact your LINBIT support channel, then?
> --
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
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