[DRBD-user] Re: drbd 0.7.13 slow resync and panic with RedHat kernel 2.4.21-32.0.1.ELsmp

Diego Liziero diegoliz at carpidiem.it
Thu Sep 15 13:01:25 CEST 2005

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


Lars Ellenberg wrote:
>\ Diego Liziero:
>> [...]
>> We didn't try to change the configuration.
>>
>> We can do some more tests next Wednesday afternoon,
>> but we have few minutes available where all
>> the cluster services may be stopped.
>
>so what is the current situation?  back to 0.6?

Yes, back to 0.6.12

> [..]
>> Here is what is left on my remote xterminal from yesterday:
>> version: 0.7.13 (api:77/proto:74)
>> SVN Revision: 1942 build by root at .. , 2005-09-12 12:44:26
>>  0: cs:Connected st:Primary/Secondary ld:Consistent
>>     ns:50789466 nr:0 dw:40 dr:50789583 al:3 bm:9300 lo:0 pe:0 ua:0
ap:0
>>  1: cs:Connected st:Primary/Secondary ld:Consistent
>>     ns:8555234 nr:0 dw:170636 dr:8451935 al:207 bm:1536 lo:0 pe:0
ua:0 ap:0
>>  2: cs:Connected st:Primary/Secondary ld:Consistent
>>     ns:8615170 nr:0 dw:231256 dr:8434619 al:43 bm:1536 lo:0 pe:0 ua:0
ap:0
>>  3: cs:Connected st:Primary/Secondary ld:Consistent
>>     ns:8397222 nr:0 dw:12184 dr:8389563 al:56 bm:1536 lo:0 pe:0 ua:0
ap:0
>>  4: cs:Connected st:Primary/Secondary ld:Consistent
>>     ns:8385898 nr:0 dw:145 dr:8534575 al:2 bm:1536 lo:0 pe:0 ua:0
ap:0
>>  5: cs:SyncSource st:Primary/Secondary ld:Consistent
>>     ns:4716200 nr:0 dw:60688 dr:5035525 al:250 bm:32608 lo:0 pe:53
ua:2019 ap:0
>>         [>...................] sync'ed:  1.8% (254025/258577)M
>>         finish: 7:22:23 speed: 9,756 (8,336) K/sec
>
>is it already mounted and serving?

Yes, mounted and used.

>> The conf file part of the 5th partition is:
>>
>> resource Mail {
>>   protocol C;
>>   syncer  {
>>     rate 500M;
>
>maybe better set this to something like what is actually physically
possible.
>say, if you have seen a maximum sync transfer rate of 27M, set it to
30M.

I supposed that M was megabit/sec, we have a Gigabit Ethernet dedicated
link,
and actually we reached 480 megabit/sec during the resync process.

> [..]
>>     group 6;
>
>ok, so I guess all of them are in different sync groups, right?

Right.

>>   }
>>     disk /dev/cciss/c0d0p12;
>>     meta-disk /dev/cciss/c0d0p14 [5];
>
>looks fine.
>
>can you somehow verify that the
>     meta-disk /dev/cciss/c0d0p14 [5];
>has no physical problems?

It's a partition in a raid 5 controller virtual disk.
The controller gives us no error on disks.

Diego.






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