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can I have RAID level=1 with 3 disks?
Posted: 2018/06/22 22:02:13
by lse123new
RAID level=1 has normally two disks
can I have RAID level=1 with 3 disks?
can even add one disk to the 3 so total 4 same level=1 meaning 4 all exactly the same??? whenever and what ever write to one write to all
Re: can I have RAID level=1 with 3 disks?
Posted: 2018/06/23 09:36:29
by jlehtone
Check the 'man mdadm' for option grow.
Re: can I have RAID level=1 with 3 disks?
Posted: 2018/06/23 14:31:49
by lse123new
you mean that scenario is possible and sometimes rather two exist 3 or 4 disks at RAID LEVEL=1...? YES CORRECT / NO
Re: can I have RAID level=1 with 3 disks?
Posted: 2018/06/23 19:29:31
by jlehtone
man mdadm wrote:A RAID1 array can work with any number of devices from 1 upwards (though 1 is not very useful). There may be times which you want to increase or decrease the number of active devices.
Looks like 'yes' to me.
Re: can I have RAID level=1 with 3 disks?
Posted: 2018/06/25 02:52:50
by engingeg
Yes it can.