Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi there, I'm currently setting up drbd/heartbeat on a pair of Ubuntu (Hardy) VMs running under Xen 3.2 Heartbeat 2.1.3 DRBD 8.0.14 However, I get the first of these errors with or without heartbeat. At boot time I see: Mar 3 13:31:42 zimbra-ldap1 kernel: [ 5.034943] drbd0: disk( Attaching -> UpToDate ) Mar 3 13:31:42 zimbra-ldap1 kernel: [ 5.034943] blkfront: sdb2: write barrier op failed Mar 3 13:31:42 zimbra-ldap1 kernel: [ 5.034943] blkfront: sdb2: barriers disabled Mar 3 13:31:42 zimbra-ldap1 kernel: [ 5.034943] end_request: I/O error, dev sdb2, sector 0 Mar 3 13:31:42 zimbra-ldap1 kernel: [ 5.034943] end_request: I/O error, dev sdb2, sector 0 Mar 3 13:31:42 zimbra-ldap1 kernel: [ 5.035288] drbd0: Barriers not supported on meta data device - disabling I don't get the I/O errors all the time, just at boot. With heartbeat, I also see an error like this: zimbra-ldap2 login: [ 246.542836] drbd0: local disk flush failed with status -95 on both nodes at the point where heartbeat kicks in and decides to mount the drbd device on one of the nodes. The message appears on both nodes. Can someone please let me know how worried I should be about these messages? Thanks!! -- Please remember that an email is just like a postcard; it is not confidential nor private nor secure and can be read by many other people than the intended recipient. A postcard can be read by anyone at the mail sorting office and expecting what is written on it to be private and secret is not realistic. Please hold no higher expectation of email. If you need to send confidential information in an email you need to use encryption. PGP is Pretty good for this.