<div><font face="courier new,monospace">I have set up a Linux-HA configuration on two systems. DRBD is working, but the speed is very low. It never exceeds 500 Kb. Although I've set rate in drbd.conf to 700000. Could someone help me with this problem or give me some direction, at the moment I don't know if the source of the problem lays in DRBD or maybe in the filesystem.
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<div><font face="courier new,monospace">service drbd status:<br> </font></div>
<div><font face="courier new,monospace">drbd driver loaded OK; device status:<br>version: 0.7.11 (api:77/proto:74)<br>SVN Revision: 1807 build by </font><a href="mailto:root@VGW-MC02"><font face="courier new,monospace">root@VGW-MC02
</font></a><font face="courier new,monospace">, 2005-07-21 07:58:03<br> 0: cs:SyncSource st:Secondary/Secondary ld:Consistent<br> ns:3732 nr:0 dw:0 dr:11924 al:0 bm:0 lo:0 pe:76 ua:2048 ap:0<br> [>...................] sync'ed:
0.1% (91504/91508)M<br> finish: 57:50:24 speed: 428 (428) K/sec<br></font></div>
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<div><font face="courier new,monospace">drdb.conf:</font></div>
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<div><font face="courier new,monospace">resource r0 {</font></div>
<div><font face="courier new,monospace"><br> protocol A;</font></div>
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<p> incon-degr-cmd "echo '!DRBD! pri on incon-degr' | wall ; sleep 60 ; halt -f";</p>
<p> startup {<br> degr-wfc-timeout 120; # 2 minutes.<br> }</p>
<p> disk {<br> on-io-error detach;<br> }<br><font face="courier new,monospace"><br> net {</font></p></div>
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<p> sndbuf-size 512k;</p>
<p> max-buffers 2048;</p>
<p> max-epoch-size 2048;</p>
<p> }</p>
<p> syncer {<br></p> rate 700000;</div>
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<p> group 1;</p>
<p> al-extents 257;<br> }</p>
<p> on VGW-MC02 {<br> device /dev/drbd0;<br> disk /dev/sda5;<br> address xx.xx.xx.xx:7788;<br> meta-disk internal;</p>
<p> }</p>
<p> on VGW-MC03 {<br> device /dev/drbd0;<br> disk /dev/sda5;<br> address xx.xx.xx.xx:7788;<br> meta-disk internal;<br> }<br>}<br></p></div>