|
hi,all
there are some questions
about ceph.
1) can i get the osd list
that hold objects consist of a file by command-line?
2) does ceph support FC or
how can i get FC supported in ceph? like we use iscsi target tool
to export rbd block device ,so windows can use it as a disk.
3) the question i thought
many times, the crush hierarchy is stack,host,device,and the
replication level is 2, but if two disks failed in different stack
in 5 mins, how can i cut down the risk of data lose to lowest? I
thought about disaster backup by building a remote datacenter,
but if another two disks also failed in that datacenter?
4) "df -h" on client shows
the data stored(include the replicated data) in cluster, not data
really used by user.
thanks huangjun |
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