Hi Tim, Lofi is chosen as the default for globaldevices name space if there is a no dedicated /globaldevices slice mounted at the time of sun cluster configuration (scinstall). You will get a warning message that lofi will be chosen towards the end.
Regarding your question about the feature being "production ready" - the feature is fairly new. The only problem we found during our testing was globaldevices: lofiadm: could not unmap device /dev/lofi/127: No such device or address <http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6749797> But again, it was not very often noticed unless the system is recycled every few minutes. Moving between lofi and a dedicated /globaldevices partition is definitely possible. Others on the alias will correct me if that is not the case. I don't have any numbers regarding performance though. Best Regards, Madhan Kumar Perkins, Tim wrote: > > I've recently been tasked with setting up a HA NAS cluster using > Solaris Express and Cluster Express on x86. I'd really like to keep > my entire disk (minus the boot partition) as ZFS. I've scoured > through the mailing list and the various wiki's out there for > information on running Cluster Express's /globaldevices on lofi to no > avail. > > > > I'm hoping that someone on this mailing list will be able to answer my > questions, the main one being what the advantages and disadvantages of > running /globaldevices on a lofi device. Is the lofi support > production ready or geared more towards testing? When Solaris Cluster > does support a ZFS /globaldevices, will I be able to migrate off of > lofi (assuming I opt to go that route)? Is there a substantial > performance penalty for using lofi? > > > > Thanks, > > > > --Tim Perkins > > > > ------------------------------------------------------------------------ > > _______________________________________________ > ha-clusters-discuss mailing list > ha-clusters-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/ha-clusters-discuss > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/ha-clusters-discuss/attachments/20081007/c13acfdd/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: Madhan_Balasubramanian.vcf Type: text/x-vcard Size: 170 bytes Desc: not available URL: <http://mail.opensolaris.org/pipermail/ha-clusters-discuss/attachments/20081007/c13acfdd/attachment.vcf>
