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;
disk
{
on-io-error pass_on;
no-disk-barrier;
no-disk-flushes;
}
syncer
{
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;
}
net
{
# 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;
address 192.168.10.6:7700;
meta-disk internal;
}
on "kvm4.hgccp" {
device /dev/drbd0;
disk /dev/vg_kvm4/drbd0;
address 192.168.10.7:7700;
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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