Date: Tue, 29 Mar 2011 13:17:01 +0200 From: Denny Schierz <linuxmail@4lin.net> To: stable@freebsd.org Subject: way for failover zpool (no HAST needed) Message-ID: <1301397421.11113.250.camel@pcdenny>
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[-- Attachment #1 --] hi, my two nodes are running fine with 8.2-stable and the LSI 9200-8e and now, I want to build a failover for the Zpool (and later ISCSI target) Both nodes are connected to the same disks (jbod) and now I need a way, to get the zpool(s) running on the node with the CARP public IP. I found something about carp, hooks, devd etc. pp. My first thought was: carp -> hook -> zpool import -> devd -> ISCSI target up Problem HostA: no network: carp -> hook -> zpool export -> devd -> ISCSI target down -> OK Back to master shouldn't be a problem, I think ... Problem HostA: power off: carp -> hook -> zpool import -> devd -> ISCSI target up -> OK But a bad problem could be: Problem HostA: SAS Cntrl/cabel problem: carp is up and running ..., no reason to failover to slave ... -> bad So, I mean, I have to use devd who takes notes, that the /dev/da* disks are gone or inaccessible and inform carp or shutdown the network interface to force carp switching over to slave. So any hints are welcome :-) If it works, I will write a howto for that one :-) cu denny [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEABECAAYFAk2Rv6kACgkQKlzhkqt9P+COVQCgn7UoiN3CJ1Ig34nEdCdkN5pE wVYAnjdCGDMw2EdKX02n00xB75Vtpkoo =LCGb -----END PGP SIGNATURE-----
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