mgr active s01 reboot

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Hello All,

We are running prod. now. We have configured our Ceph cluster as by guide. 
When our active mgr, also monitoring server s01 will be shutdown, than our ceph filesystems will disappear.
We have 3x monitor servers.

Can we do something about this, like a redundant mgr server?


 ceph --watch-error
    cluster 62b32e0b-90e2-4285-87f9-8dd874d3ac8f
     health HEALTH_WARN
            147 pgs degraded
            11 pgs recovering
            136 pgs recovery_wait
            147 pgs stuck degraded
            147 pgs stuck unclean
            recovery 56000/2009180 objects degraded (2.787%)
     monmap e4: 3 mons at {s01=172.30.0.1:6789/0,s02=172.30.0.2:6789/0,s03=172.30.0.3:6789/0}
            election epoch 74, quorum 0,1,2 s01,s02,s03
      fsmap e64: 1/1/1 up {0=s01=up:active}
        mgr active: s01 
     osdmap e1972: 110 osds: 110 up, 110 in
            flags sortbitwise,require_jewel_osds,require_kraken_osds
      pgmap v5998490: 6370 pgs, 10 pools, 3591 GB data, 981 kobjects
            7324 GB used, 342 TB / 349 TB avail
            56000/2009180 objects degraded (2.787%)
                6223 active+clean
                 136 active+recovery_wait+degraded
                  11 active+recovering+degraded
recovery io 204 MB/s, 95 keys/s, 59 objects/s

Regards, Arnoud.

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