I've a dedicated server running a RAID1 array of 2 disks of 1TB. I can't install a new operating system but I can only bootstrap a new one with the predefined configuration.
I really don't need the mirroring, instead I need more IO speed (expecially writing).
This is my actual configuration:
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 4G 0 part
│ └─md1 9:1 0 4G 0 raid1 /
├─sda2 8:2 0 2G 0 part [SWAP]
└─sda3 8:3 0 925.5G 0 part
└─md3 9:3 0 925.5G 0 raid1
├─vg00-usr 253:0 0 36G 0 lvm /usr
├─vg00-var 253:1 0 35G 0 lvm /var
├─vg00-home 253:2 0 3G 0 lvm /home
└─vg00-data 253:3 0 850G 0 lvm /data
sdb 8:16 0 931.5G 0 disk
├─sdb1 8:17 0 4G 0 part
│ └─md1 9:1 0 4G 0 raid1 /
├─sdb2 8:18 0 2G 0 part [SWAP]
└─sdb3 8:19 0 925.5G 0 part
└─md3 9:3 0 925.5G 0 raid1
├─vg00-usr 253:0 0 36G 0 lvm /usr
├─vg00-var 253:1 0 35G 0 lvm /var
├─vg00-home 253:2 0 3G 0 lvm /home
└─vg00-data 253:3 0 850G 0 lvm /data
What can I do? Can I remove the vg00-data lvm an use the free space (850Gb) as 2 independent ext4 partitions?
Or I can switch from RAID 1 to RAID 0 without data loss? (I need to keep the os, I can loose vg00-data).