Hi, Marc, Indeed PXE boot makes a lot sense in large cluster, cuting down OS deployment and management burden, but only iff no single of failure is guaranteed... best regards, samuel huxiaoyu@xxxxxxxxxxxx From: Marc Roos Date: 2020-03-21 14:13 To: ceph-users; huxiaoyu; martin.verges Subject: RE: Questions on Ceph cluster without OS disks I would say it is not a 'proven technology' otherwise you would see a wide spread implementation and adaptation of this method. However if you really need the physical disk space, it is a solution. Although I also would have questions on creating an extra redundant environment to service remote booting, just to spare a os disk position. Maybe this makes more sence in really big environments. -----Original Message----- From: huxiaoyu@xxxxxxxxxxxx [mailto:huxiaoyu@xxxxxxxxxxxx] Sent: 21 March 2020 13:54 To: Martin Verges; ceph-users Subject: Questions on Ceph cluster without OS disks Hello， Martin， I notice that Croit advocate the use of ceph cluster without OS disks, but with PXE boot. Do you use a NFS server to serve the root file system for each node? such as hosting configuration files, user and password, log files, etc. My question is, will the NFS server be a single point of failure? If the NFS server goes down, the network experience any outage, ceph nodes may not be able to write to the local file systems, possibly leading to service outage. How do you deal with the above potential issues in production? I am a bit worried... best regards, samuel _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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