[DRBD-user] Downgrading 8.4.1 to 8.3.12

Jose Ildefonso Camargo Tolosa ildefonso.camargo at gmail.com
Thu Mar 8 15:01:41 CET 2012

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


On Thu, Mar 8, 2012 at 12:26 AM, William Seligman
<seligman at nevis.columbia.edu> wrote:
> On 3/7/12 11:13 PM, Jose Ildefonso Camargo Tolosa wrote:
>>
>> Ok, direct question here: why do you want to downgrade? (I considered
>> a downgrade once, but then was able to fix the issues I was having,
>> and just stayed with a patched 8.4.1)
>
>
> It was suggested because of a problem I had:
>
> <http://www.gossamer-threads.com/lists/linuxha/users/78469>
>
> The actual issue turned out to be how I configured RRP in corosync. However,
> given the general advice "stick to 8.3.12 for production systems" I see on
> this list, I did not upgrade back to 8.4.1 after I fixed the problem.

Yeah, I have 8.4.1 on just two pairs of servers (and I keep an eye on
these), one of the pair has kernel 3.x series (manually updated it),
and the other is using this patch:

http://git.drbd.org/gitweb.cgi?p=drbd-8.4.git;a=commitdiff;h=55a81dc
(yes, Lars, it seems to work just fine this far)

With Scientific Linux 6.2 stock kernel, and custom-built drbd 8.4.1

Both seems to be working just fine, and a bothersome performance issue
(reads would freeze while you was doing heavy write, a large file copy
onto the drbd volume was enough to trigger this) I was having with
8.3.x, went away too, at least most of the time, which is "good
enough" for these systems.



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