Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Don Caprio wrote:
> I'm setting up a DRBD on a 2 node HA cluster. The DRBD is configured
> and appears to be
> running as expected. After the resync completed I created an ext3
> filesystem on my primary node and
> mounted /dev/drbd1.
>
> It's not clear to me that this is allowed but I tried to mount the file
> system on my secondary node (read-only)
> and the mount fails. Should I be able to do this?
No you can not mount the secondary, only the primary.
>
> Thank you.
>
> root at skunk:~# mount /dev/drbd1 /drbdfs
> root at skunk:~# df -k /drbdfs
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/drbd1 2518072 98408 2292760 5% /drbdfs
>
> root at badger:~# mount -r /dev/drbd1 /drbdfs
> mount: you must specify the filesystem type
> root at badger:~# mount -t ext3 -o ro /dev/drbd1 /drbdfs
> mount: Wrong medium type
>
>
> /etc/drbd.conf:
> global {
> usage-count yes;
> }
> common {
> protocol C;
> }
> resource r0 {
> on skunk {
> device /dev/drbd1;
> disk /dev/sda6;
> address 192.168.254.101:7789;
> meta-disk internal;
> }
> on badger {
> device /dev/drbd1;
> disk /dev/sda6;
> address 192.168.254.100:7789;
> meta-disk internal;
> }
> }
>
> root at skunk:~# cat /proc/drbd
> version: 8.0.11 (api:86/proto:86)
> GIT-hash: b3fe2bdfd3b9f7c2f923186883eb9e2a0d3a5b1b build by phil at mescal,
> 2008-02-12 11:56:43
>
> 1: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate C r---
> ns:2653752 nr:0 dw:115632 dr:2538249 al:44 bm:155 lo:0 pe:0 ua:0 ap:0
> resync: used:0/31 hits:158479 misses:155 starving:0 dirty:0 changed:155
> act_log: used:0/127 hits:28864 misses:55 starving:0 dirty:11 changed:44
>
> root at badger:~# cat /proc/drbd
> version: 8.0.11 (api:86/proto:86)
> GIT-hash: b3fe2bdfd3b9f7c2f923186883eb9e2a0d3a5b1b build by phil at mescal,
> 2008-02-12 11:56:43
>
> 1: cs:Connected st:Secondary/Primary 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:0/31 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
>
>
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