[DRBD-user] speed problems

[Rick Gutierrez]

Hi ,  here again, i'm trying something i found in the list
https://lists.linbit.com/pipermail/drbd-user/2018-October/024571.html

version: 8.4.11-1 (api:1/proto:86-101)
GIT-hash: 66145a308421e9c124ec391a7848ac20203bb03c build by
mockbuild@, 2018-11-03 01:26:55
 0: cs:SyncSource ro:Primary/Primary ds:UpToDate/Inconsistent C r-----
    ns:5135424 nr:0 dw:0 dr:5137552 al:0 bm:0 lo:0 pe:59 ua:0 ap:0
ep:1 wo:d oos:1392034268
[>....................] sync'ed:  0.4% (1359408/1364360)M
finish: 90:33:02 speed: 4,260 (3,552) K/sec

but I don't get a noticeable improvement, when I copy a file between
the two servers I get speeds of 55MB

any idea?

El vie., 3 abr. 2020 a las 9:55, Rick Gutierrez
(<xserverlinux at gmail.com>) escribió:
>
> hi list, i am installing drbd 8.4.x in centos 7 in a couple of boxes,
> i need to replicate my mail server, but i am having speed problems in
> the replication, i have tried different options within the
> configuration and without success.
>
> I have my network at 1gb ethernet, my switch is cisco 2960-S, I am
> replicating 1.3TB on 7200RPM disks, but the speed is terrible, very
> slow.
>
> version of rpm
> drbd84-utils-9.6.0-1.el7.elrepo.x86_64
> kmod-drbd84-8.4.11-1.1.el7_6.elrepo.x86_64
> drbd84-utils-sysvinit-9.6.0-1.el7.elrepo.x86_64
>
> my setting:
>
> disk {
>
>         c-plan-ahead 0;
>                 on-io-error detach;
> no-disk-flushes ;
>         no-disk-barrier;
>                 c-min-rate 90M;
> c-max-rate 120M;
>
> net {
>
>         allow-two-primaries;
>
>         cram-hmac-alg sha1;
>
>         shared-secret  "C2qz2wsx";
>
> max-buffers             36k;
>
>         sndbuf-size            1024k ;
>
>         rcvbuf-size            2048k;
>
>     }
>
> any idea?
>
> --
> rickygm
>
> http://gnuforever.homelinux.com



-- 
rickygm

http://gnuforever.homelinux.com