guy71
3 Posts
Quote from guy71 on April 8, 2020, 12:20 pm
Hello all.
Lets say you have 3 hosts with 4 data disks (HDD) each. Which would be the better solution?
Keeping in mind that Linux doesn't like when a drive starts with read/write errors.
1: having 4 OSDs on each of the 3 hosts. A simple replication rule on 3 different disks. Would the replication be automatically on the 3 hosts or do you need to adapt the standart replication rule for that ?
2: having in each host a Raid controller with the 4 disks in a Raid 0 configuration and then 1 OSD on each host. This solution will probably be less CPU intensive.
So what are your opinions?
Best regards, Guy
Hello all.
Lets say you have 3 hosts with 4 data disks (HDD) each. Which would be the better solution?
Keeping in mind that Linux doesn't like when a drive starts with read/write errors.
1: having 4 OSDs on each of the 3 hosts. A simple replication rule on 3 different disks. Would the replication be automatically on the 3 hosts or do you need to adapt the standart replication rule for that ?
2: having in each host a Raid controller with the 4 disks in a Raid 0 configuration and then 1 OSD on each host. This solution will probably be less CPU intensive.
So what are your opinions?
Best regards, Guy
admin
2,930 Posts
Quote from admin on April 8, 2020, 1:17 pm
Better do not use RAID, and give the drives as separate drives to the system.
Better do not use RAID, and give the drives as separate drives to the system.
