Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Op 15 maart 2012 09:20 heeft Adi Spivak <adispi at compulab.co.il> het
volgende geschreven:
> Hi.
> I ma using the drbd that comes with centos.
> My centos version is 5.8
>
> My /proc/drbd say as following:
>
> version: 8.0.16 (api:86/proto:86)
> GIT-hash: d30881451c988619e243d6294a899139eed1183d build by
> mockbuild at v20z-x86-64.home.local, 2009-08-22 13:27:08
>
> 1: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate C r---
> ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0
> resync: used:0/61 hits:0 misses:0 starving:0 dirty:0 changed:0
> act_log: used:0/127 hits:0 misses:0 starving:0 dirty:0 changed:0
>
>
> However, this is not true.
> This LVM drive is connected to a XEN VM and after verifing the initial
> sync and seeing that they are identical, i have made small changes to
> the original machine by adding some files to the desktop and running
> some updates.
Hi,
Do you have LVM on top of DRBD? Or DRBD on top of LVM?
In the last case is true my guess is that you are exporting your LVM
device to the XEN VM and not the /dev/drbd1 (which you SHOULD export)
Making changes to the underlying device of DRBD does NOT replicate the
changes to the second node and will result in out of sync blocks (oos
on /proc/mdstat) after doing an online verify.
You can run an online verify by following the instructions of the
relevant documentation page on the linbit site.
Best regards,
Caspar
>
> The /proc/drbd keep cliaming they are uptodate, however, when i turn off
> the vm on the primary and start on the secondary it is the same as the
> original sync with none of my small changes.
>
> This is my drbd.conf (simple and taken from the guide and without the
> IPs and real machine names):
> #
> # please have a a look at the example configuration file in
> # /usr/share/doc/drbd/drbd.conf
> #
> global {
> usage-count yes;
> }
> common {
> protocol C;
> }
> resource r0 {
> on san {
> device /dev/drbd1;
> disk /dev/mapper/storage-ranadtech;
> address <IP>:7789;
> meta-disk internal;
> }
> on sanbkp {
> device /dev/drbd1;
> disk /dev/mapper/storage-ranadtech;
> address <IP>:7789;
> meta-disk internal;
> }
> }
>
>
> What do i need to change to make it work?
>
> Thank you.
>
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