Stefano Pini wrote: > Hi guys, > we are proposing a customer a couple of X4500 (24 Tb) used as NAS > (i.e. NFS server). > Both server will contain the same files and should be accessed by > different clients at the same time (i.e. they should be both active) > So we need to guarantee that both x4500 contain the same files: > We could simply copy the contents on both x4500 , which is an option > because the "new files" are in a limited number and rate , but we > would really like to use ZFS send & receive commands: > > AFAIK the commands works fine but generally speaking are there any > known limitations ?
zfs send/receive work on snapshots, not live data. AVS can replicate ZFS live data, but works in an active/passive mode for ZFS: the recipient ZFS server will not be accessing the data via ZFS from the local replicant live. > And, in detail , it is not clear if the receiving ZFS file system > could be used regularly while it is in "receiving mode": > in poor words is it possible to read and export in nfs, files from > a ZFS file system while it is receiving update from another ZFS send ? > > Clearly until the new updates are received and applied the old copy > would be used > If your solution requires simultaneous access of the same files hosted by different servers without shared storage, then you are describing a distributed or parallel file system, not ZFS. If those are the requirements, then perhaps Lustre or NFS v4.1 is a better solution. If the solution requires high availability using replication, then a Solaris Cluster Geo Edition with AVS is a viable option. -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
