Hi all,<br><br>I am trying to test 8.3.0 and experiencing funny thing - the background sync rate does not react as it was on 8.2.6.<br>I can remember there was a discussion regarding this recently. From what I saw I understand we should look at the second number - that is avg Bytes transfered within some time interval (~10 sec.). But with 8.3.0 it seems to be different - looks like it is now the overall average rate or something?<br>
<br>Could someone explain if anything has changed here?<br><br># drbdsetup /dev/drbd2 show<br>disk {<br>
size 0s _is_default; # bytes<br> on-io-error detach;<br> fencing resource-only;<br> max-bio-bvecs 0 _is_default;<br>}<br>net {<br> timeout 60 _is_default; # 1/10 seconds<br>
max-epoch-size 512;<br> max-buffers 512;<br> unplug-watermark 128 _is_default;<br> connect-int 2; # seconds<br> ping-int 2; # seconds<br>
sndbuf-size 0; # bytes<br> ko-count 0 _is_default;<br> cram-hmac-alg "sha1";<br> shared-secret "1-5d20ce93389e273d-1";<br> after-sb-0pri discard-younger-primary;<br>
after-sb-1pri discard-secondary;<br> after-sb-2pri call-pri-lost-after-sb;<br> rr-conflict call-pri-lost;<br> ping-timeout 10; # 1/10 seconds<br>}<br>
syncer {<br> rate 30720k; # bytes/second<br> after 0;<br> al-extents 1801;<br> verify-alg "sha1";<br>}<br>protocol C;<br>
_this_host {<br> device "/dev/drbd2";<br> disk "/dev/VolGroup00/data";<br> meta-disk "/dev/VolGroup00/drbd_meta" [ 2 ];<br>
address ipv4 <a href="http://192.167.30.39:7790/" target="_blank">192.167.30.39:7791</a>;<br>}<br>_remote_host {<br> address ipv4 <a href="http://192.167.30.43:7790/" target="_blank">192.167.30.43:7791</a>;<br>
}<br><br># cat /proc/drbd<br>version: 8.3.0 (api:88/proto:86-89)<br>GIT-hash: 9ba8b93e24d842f0dd3fb1f9b90e8348ddb95829 build by <a href="mailto:root@example.com" target="_blank">root@example.com</a>, 2009-02-12 00:59:39<br>
2: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r---<br> ns:29724672 nr:0 dw:4 dr:29725269 al:1 bm:1814 lo:55 pe:4 ua:64 ap:0 ep:1 wo:b oos:22704224<br> [==========>.........] sync'ed: 56.7% (22172/51200)M<br>
finish: 0:09:11 speed: 41,040 (27,120) K/sec<br><br># drbdsetup /dev/drbd2 syncer -r 60M<br> 2: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r---<br> ns:30854848 nr:0 dw:4 dr:30855125 al:1 bm:1883 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:21573952<br>
[==========>.........] sync'ed: 58.9% (21068/51200)M<br> finish: 0:06:12 speed: 57,856 (27,328) K/sec<br><br># drbdsetup /dev/drbd2 syncer -r 50K<br> 2: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r---<br>
ns:32710496 nr:0 dw:4 dr:32710773 al:1 bm:1996 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:19718304<br> [===========>........] sync'ed: 62.4% (19256/51200)M<br> finish: 13:41:35 speed: 384 (27,836) K/sec<br>
<br># drbdsetup /dev/drbd2 syncer -r 1M<br> 2: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r---<br> ns:32727040 nr:0 dw:4 dr:32727317 al:1 bm:1997 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:19701760<br> [===========>........] sync'ed: 62.5% (19240/51200)M<br>
finish: 5:12:43 speed: 1,012 (27,000) K/sec<br><br>