On Friday, January 17, 2014, Iban Cabrillo <cabri...@ifca.unican.es> wrote:
> Dear, > we are studying the possibility to migrate our FS in the next year to > cephfs. I know that it is not prepare for production environments yet, but > we are planning to play with it in the next months deploying a basic > testbed. > Reading the documentation, I see 3 mons, 1 mds and several ods's (both > in physical machines..I have understood). Is this true? > On the other hand I do not understand the fail-over mechanism for > clients when have mounted a FS, looking at documentation : > > *ceph-fuse* [ -m *monaddr*:*port* ] *mountpoint* [ *fuse options* ] > You have to specify (hardcode) the "*monaddr*:*port", if this mon (ip) is > down, what happen, Do you lost the fs on that node?, or there is a generic > dns-rrd implementation for mons??* > You can actually specify a list of mons, and once connected to any mon the client fetches the full list and will reconnect to them if the one it is currently talking to goes down. > > * Is there any implementation for "tiering" or "HSM" at software level, I > mean, can I mix different type of disk (ssds and SATA) on diferent pools, > and migrate data between them automatically (most used, size, last time > access) * > Sadly no. We're starting to play in this space in our upcoming Firefly release with "cache pools", but it's not quite done yet. -Greg > > > > *Please could anyone clarify to me this point?* > > *Regards, I* > > -- > #################################### > Iban Cabrillo Bartolome > Instituto de Fisica de Cantabria (IFCA) > Santander, Spain > Tel: +34942200969 > #################################### > Bertrand Russell: > *"El problema con el mundo es que los estúpidos están seguros de todo y > los inteligentes están llenos de dudas*" > -- Software Engineer #42 @ http://inktank.com | http://ceph.com
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