<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Hi all<br><br>I want to upgrade a two node cluster, without downtime of the complete drbd node.<br>The two different versions should only run a short time.<span class="Apple-converted-space"> </span><br><br>One node is already upgraded to ubuntu 12.04 - drbd 8.3.11 - kernel 3.2.0<br>The other node is running ubuntu 10.04 - drbd 8.3.7, as primary. <br><br>When I try to connect the node running drbd 8.3.11 to sync to the node running 8.3.7.<span class="Apple-converted-space"> </span><br>I get some errors.<br>The sync gets started, but stops.<br><br>root@host /var/log # cat /proc/drbd<span class="Apple-converted-space"> </span><br>version: 8.3.11 (api:88/proto:86-96)<br>srcversion: 71955441799F513ACA6DA60<span class="Apple-converted-space"> </span><br><br>1: cs:SyncTarget ro:Secondary/Primary ds:Inconsistent/UpToDate C r-----<br> ns:0 nr:32 dw:32 dr:0 al:0 bm:0 lo:0 pe:120 ua:0 ap:0 ep:1 wo:f oos:524281120<br><span class="Apple-tab-span" style="white-space: pre; "> </span>[>....................] sync'ed: 0.1% (511992/511992)Mfinish: 364:05:02 speed: 0 (0) want: 76,800 K/sec<br><br>version: 8.3.11 (api:88/proto:86-96)<br>srcversion: 71955441799F513ACA6DA60<span class="Apple-converted-space"> </span><br><br>1: cs:BrokenPipe ro:Secondary/Unknown ds:Inconsistent/DUnknown C r-----<br> ns:0 nr:32 dw:32 dr:0 al:0 bm:0 lo:2 pe:120 ua:0 ap:0 ep:1 wo:f oos:524281120<br><br>conn( WFBitMapT -> WFSyncUUID )<span class="Apple-converted-space"> </span><br>updated sync uuid 4521C444BE77EC04:0000000000000000:0000000000000000:0000000000000000<br>helper command: /sbin/drbdadm before-resync-target minor-1<br>helper command: /sbin/drbdadm before-resync-target minor-1 exit code 0 (0x0)<br>conn( WFSyncUUID -> SyncTarget )<span class="Apple-converted-space"> </span><br>Began resync as SyncTarget (will sync 524281096 KB [131070274 bits set]).<br>sock was shut down by peer<br>meta connection shut down by peer.<br>peer( Primary -> Unknown ) conn( SyncTarget -> BrokenPipe ) pdsk( UpToDate -> DUnknown )<span class="Apple-converted-space"> </span><br>short read expecting header on sock: r=0<br>asender terminated<br>Terminating drbd1_asender<br>bitmap WRITE of 4000 pages took 53 jiffies<br>conn( BrokenPipe -> Disconnecting )<br><br>Somebody already run into this issue?<br><br>yves</span></div></div><br></body></html>