> I believe you can connect the OSSs once the MDS has booted, and in fact, I'm pretty
> sure that the five in the 'connected_clients: 0/5' are in fact your OSS nodes. Each > OST maintains a connection to the MDS while the file system is mounted, so they > will be included in the connection count on the MDS. Klaus, thanks for this information. But, the 0/5 is the number of clients. An MDT is a client of an OST, not the other way around. ________________________________ From: Klaus Steden [mailto:[email protected]] Sent: Tuesday, January 20, 2009 8:13 PM To: Roger Spellman; [email protected] Subject: Re: [Lustre-discuss] Recovery fails if clients not connected Hi Roger, I believe you can connect the OSSs once the MDS has booted, and in fact, I'm pretty sure that the five in the 'connected_clients: 0/5' are in fact your OSS nodes. Each OST maintains a connection to the MDS while the file system is mounted, so they will be included in the connection count on the MDS. However, regardless of the state - if your MDS is online and the MDT is mounted, you can start up the OSS nodes and corresponding OSTs at any time; clients attempting to make transactions will have their I/O operations block (or fail, depending on the MDS config) until the missing nodes come back online. hth, Klaus
_______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
