mahesh
8 Posts
Quote from mahesh on November 30, 2022, 10:02 am
we have configured three node petasan cluster ,
How many disk failure will support the petasan replication feature.suppose if two or more harddisk failed in my cluster is my data is safe or not
we have configured three node petasan cluster ,
How many disk failure will support the petasan replication feature.suppose if two or more harddisk failed in my cluster is my data is safe or not
admin
2,930 Posts
Quote from admin on November 30, 2022, 8:10 pm
The default replication size is 3, so any data is replicated on 3 separate hosts. For this default, you can have 1 or 2 complete hosts with their disks fail and will still have 1 copy of the data. Note that is by hosts and not by disks, if on the other hand you have a single HDD fail on 3 separate nodes at same time, you will lose data. You can change the replica size from pool page if you need. You can also change the failure domain from hosts to racks/rooms/centers from the crush rules page.
The default replication size is 3, so any data is replicated on 3 separate hosts. For this default, you can have 1 or 2 complete hosts with their disks fail and will still have 1 copy of the data. Note that is by hosts and not by disks, if on the other hand you have a single HDD fail on 3 separate nodes at same time, you will lose data. You can change the replica size from pool page if you need. You can also change the failure domain from hosts to racks/rooms/centers from the crush rules page.
