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May
16
comment How do I non-interactively update FreeBSD system (and ports)?
already tried: yes | freebsd-upgrade ... does not work .. it bails out "you should not run non-interactive ..". However, I am updating a fresh install. I fail to see any risk in doing that.
May
16
comment How do I non-interactively update FreeBSD system (and ports)?
Does freebsd-update overwrite configuration data like rc.conf? But even if so: we want to automatically (nightly) create VM images (OVA, AMI, ..) from scratch. Hence, there is no problem of configs overwritten, since after base install, the system is first updated, and then configured. So how do I run freebsd-update and portsnap unattended? On RH Linux, I just fire yum -y update and voila. How do I do that with FreeBSD?
May
16
asked How do I non-interactively update FreeBSD system (and ports)?
Feb
18
awarded  Popular Question
Sep
1
comment IPv6 autoconfiguration with multiple interfaces
Running one rtsold per interface makes sense. I will need to test that.
Aug
31
comment IPv6 autoconfiguration with multiple interfaces
1) freebsd.org/cgi/man.cgi?query=rtsol&sektion=8 : "If rtsold finds multiple interfaces, rtsold will exit with error." 2) "Also, due to restrictions in the IPv6 specification, it is not recommended to autoconfigure a host with multiple external interfaces (like 2 ethernet interfaces)." netbsd.org/docs/network/ipv6
Aug
31
asked IPv6 autoconfiguration with multiple interfaces
Aug
21
comment ZFS over iSCSI high-availability solution
Its even more tricky. I am using a test setup of 2 storage VMs and 2 database VMs all FreeBSD9. Created a 2-way mirrored pool over LUNs from the 2 storage nodes. I could verify resilvering after a storage node was gone and reappeared. However: I needed to kill iscontrol on the database node for the left storage node. Without doing that iscontrol tries to silently reconnect forever. It only does start doing so after access of the ZFS pool. But as long as it retries any ZFS pool command just hangs. Need to do more experiments. Can I run iscontrol without it daemonizing itself?
Aug
21
awarded  Supporter
Aug
21
comment ZFS over iSCSI high-availability solution
Periodically running zpool status, ok. But there is nothing "event driven"? Is there a ZFS Dtrace provider that could emit events like a failed disk? Regarding zpool import: so all the info needed to recreate a pool is stored within the vdevs (and with vdev mirror, hence redundently)? No info from the host (which may have died completely) is needed?
Aug
21
comment ZFS over iSCSI high-availability solution
Thanks for pointing to HAST! Using HAST would be quite similar: redundancy above storage nodes holding physical disks and below the database replication level. But HAST only supports 2 nodes, only 1 can be active. ZFS mirror supports also 3 storage nodes and can use all for read ops increasing throughput. HAST uses CARP .. additional complexity. As to the architecture being unusal: you are probably right, I am wondering why? Creating ZFS vdevs over SAN LUNs seem to be even recommended: hub.opensolaris.org/bin/view/Community+Group+zfs/…
Aug
21
comment ZFS over iSCSI high-availability solution
The main reason: with a "standard" architecture where ZFS RAID would be used over local physical disks and only that exported as iSCSI LUNs, there needs to be additional redundancy to protect against failures of complete storage nodes. In other words, in our case, database replication. And that is complex also. Why is it unwise?
Aug
21
awarded  Student
Aug
21
asked ZFS over iSCSI high-availability solution