Yeah. All OSD's down and monitors still up.. On Thu, Jul 9, 2015 at 4:51 PM, Jan Schermer <jan@xxxxxxxxxxx> wrote: > And are the OSDs getting marked down during the outage? > Are all the MONs still up? > > Jan > >> On 09 Jul 2015, at 13:20, Mallikarjun Biradar <mallikarjuna.biradar@xxxxxxxxx> wrote: >> >> I have size=2 & min_size=1 and IO is paused till all hosts com back. >> >> On Thu, Jul 9, 2015 at 4:41 PM, Jan Schermer <jan@xxxxxxxxxxx> wrote: >>> What is the min_size setting for the pool? If you have size=2 and min_size=2, then all your data is safe when one replica is down, but the IO is paused. If you want to continue IO you need to set min_size=1. >>> But be aware that a single failure after that causes you to lose all the data, you’d have to revert to the other replica if it comes up and works - no idea how that works in ceph but will likely be a PITA to do. >>> >>> Jan >>> >>>> On 09 Jul 2015, at 12:42, Mallikarjun Biradar <mallikarjuna.biradar@xxxxxxxxx> wrote: >>>> >>>> Hi all, >>>> >>>> Setup details: >>>> Two storage enclosures each connected to 4 OSD nodes (Shared storage). >>>> Failure domain is Chassis (enclosure) level. Replication count is 2. >>>> Each host has allotted with 4 drives. >>>> >>>> I have active client IO running on cluster. (Random write profile with >>>> 4M block size & 64 Queue depth). >>>> >>>> One of enclosure had power loss. So all OSD's from hosts that are >>>> connected to this enclosure went down as expected. >>>> >>>> But client IO got paused. After some time enclosure & hosts connected >>>> to it came up. >>>> And all OSD's on that hosts came up. >>>> >>>> Till this time, cluster was not serving IO. Once all hosts & OSD's >>>> pertaining to that enclosure came up, client IO resumed. >>>> >>>> >>>> Can anybody help me why cluster not serving IO during enclosure >>>> failure. OR its a bug? >>>> >>>> -Thanks & regards, >>>> Mallikarjun Biradar >>>> _______________________________________________ >>>> ceph-users mailing list >>>> ceph-users@xxxxxxxxxxxxxx >>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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