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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello – <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am using Glusterfs 3.2.5-2. I have one very small replicated volume with 2 bricks, as follows:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[root@lme-fw2 ~]# gluster volume info<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Volume Name: firewall-scripts<o:p></o:p></p><p class=MsoNormal>Type: Replicate<o:p></o:p></p><p class=MsoNormal>Status: Started<o:p></o:p></p><p class=MsoNormal>Number of Bricks: 2<o:p></o:p></p><p class=MsoNormal>Transport-type: tcp<o:p></o:p></p><p class=MsoNormal>Bricks:<o:p></o:p></p><p class=MsoNormal>Brick1: 192.168.253.1:/gluster-fw1<o:p></o:p></p><p class=MsoNormal>Brick2: 192.168.253.2:/gluster-fw2<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The application is a small active/standby HA appliance and I use the Gluster volume for config info. The Gluster nodes are also clients and there are no other clients. Fortunately for me, nothing is in production yet.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My challenge is, the hard drive at 192.168.253.1 failed. This was the first Gluster node when I set everything up. I replaced its hard drive and am rebuilding it. I have a good copy of everything I care about in the 192.168.253.2 brick. My thought was, I could just remove the old 192.168.253.1 brick and replica, then gluster peer and add it all back again. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>But apparently not so simple:<br><br><o:p></o:p></p><p class=MsoNormal>[root@lme-fw2 ~]# gluster volume remove-brick firewall-scripts 192.168.253.1:/gluster-fw1<o:p></o:p></p><p class=MsoNormal>Removing brick(s) can result in data loss. Do you want to Continue? (y/n) y<o:p></o:p></p><p class=MsoNormal>Incorrect brick 192.168.253.1:/gluster-fw1 for volume firewall-scripts<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Not particularly helpful diagnostic info. I also played around with gluster peer detach/attach, but now I think I may have created a mess:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[root@lme-fw2 ~]# gluster peer probe 192.168.253.1<o:p></o:p></p><p class=MsoNormal>^C<o:p></o:p></p><p class=MsoNormal> [root@lme-fw2 ~]# gluster peer status<o:p></o:p></p><p class=MsoNormal>Number of Peers: 1<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hostname: 192.168.253.1<o:p></o:p></p><p class=MsoNormal>Uuid: 00000000-0000-0000-0000-000000000000<o:p></o:p></p><p class=MsoNormal>State: Establishing Connection (Disconnected)<o:p></o:p></p><p class=MsoNormal>[root@lme-fw2 ~]#<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Trying again:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[root@lme-fw2 ~]# gluster peer detach 192.168.253.1<o:p></o:p></p><p class=MsoNormal>Detach successful<o:p></o:p></p><p class=MsoNormal>[root@lme-fw2 ~]# gluster peer status<o:p></o:p></p><p class=MsoNormal>No peers present<o:p></o:p></p><p class=MsoNormal>[root@lme-fw2 ~]# gluster volume info<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Volume Name: firewall-scripts<o:p></o:p></p><p class=MsoNormal>Type: Replicate<o:p></o:p></p><p class=MsoNormal>Status: Started<o:p></o:p></p><p class=MsoNormal>Number of Bricks: 2<o:p></o:p></p><p class=MsoNormal>Transport-type: tcp<o:p></o:p></p><p class=MsoNormal>Bricks:<o:p></o:p></p><p class=MsoNormal>Brick1: 192.168.253.1:/gluster-fw1<o:p></o:p></p><p class=MsoNormal>Brick2: 192.168.253.2:/gluster-fw2<o:p></o:p></p><p class=MsoNormal>[root@lme-fw2 ~]# gluster volume remove-brick firewall-scripts 192.168.253.1:/gluster-fw1<o:p></o:p></p><p class=MsoNormal>Removing brick(s) can result in data loss. Do you want to Continue? (y/n) y<o:p></o:p></p><p class=MsoNormal>Incorrect brick 192.168.253.1:/gluster-fw1 for volume firewall-scripts<o:p></o:p></p><p class=MsoNormal>[root@lme-fw2 ~]#<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>This should be simple and maybe I am missing something. On the fw2 Gluster node, I want to remove all trace of the old fw1 and then set up a new fw1 as a new replica. How do I get there from here? Also, once this goes into production, I will not have the luxury of taking everything offline and rebuilding it. What is the best way to recover from a hard drive failure on either node?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Greg Scott<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> <o:p></o:p></p></div></body></html>