On Tuesday, June 29, 2010 01:23 PM, Emmanuel Noobadmin wrote: > On 6/29/10, Christopher Chan<christopher.chan at bradbury.edu.hk> wrote: >>> The only problem is their HA is commercial only and costs more than >>> the entire hardware budget I've got for this. Crucially, it relies on >>> a failover/heartbeat kind of arrangement. According to some sources, >>> the failover delay of a few seconds will cause certain services/apps >>> to fail/lock up. Not an issue for the immediate need but will be a >>> major no no for the other project I have in the pipeline. >> >> So install Nexenta CP2/CP3 then. That's completely free and ZFS has its >> own web interface... > > Sorry, a little braindead by now but how would the Nexenta Core > Platform (I assume this is the CP you are referring to), solve the > failover delay problem since it would still be relying on HB to do > failover monitoring right? > > Or do you mean to use NCP for the storage units, relying on ZFS to do > the disk management and export iSCSI interfaces to the application to > use as MD RAID 1 members? raid1/iscsi if you have a single host accessing the data or gluster if you have more than one host accessing the data... Nexentastor has a HA distributed filesystem? Gotta take a closer look at that.