Has anyone successfully setup a production large-scale ( size: +10TB, users:
+500, concurrent/active users: +50 ) file server (Samba & NFS) using RHCS (CLVM
+ GFS) + CTDB + CoRAID (AoE) as backend storage? I'd be thankful if someone can
share their experience with that sort of setup. The setup I've done works but
I'm not confident enough to put it in production, it doesn't consistently cope
well under high load, sometimes it's RHCS (fencing, rgmanager, gfs, clvm)
related misbehavior, other times it's CTDB related. I'm using the latest
versions of RHCS & CTDB & AoE.
This is the basic layout:
Nodes: 3 (identical IBM blades)
Fencing: IBM blade fence
FS: GFS (GFS2 seems to be less reliable even without CTDB)
Service Network: eth0
RHCS (multicasting) & CoRAID/AoE Network: eth1 (isolated from the service
network)
RHCS handles the availability of CTDB through rgmanager, three services ensures
the running of three services exclusively:
ctdb{1-3}: clvm --> gfs --> ctdb
CTDB handles the IP failover + Samba + NFS
I'm also interested to know if someone had a production CTDB with other cluster
file systems like GPFS or OCFS or Lustre.
Cheers,
-- Abraham
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Abraham Alawi
Unix/Linux Systems Administrator
Science IT
University of Auckland
e: [email protected]
p: +64-9-373 7599, ext#: 87572
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