Hello all :)
I'm going to set up Proxmox cluster, the schema of hardware is the next:
setup.png
As you can see - I have 2 nodes with identical hardware (Mainboard TYAN S7050, Intel(R) Xeon(R) CPU E5-2620 CPU), on every server i have LSI SAS HBA 9207-8i controllers through which the nodes are connected to Supermicro SCE 837E26-RJBOD1 shared storage (using the special cable - External mSASx4 (SFF-8088) to mSASx4 (SFF-8088) cable).
I'd setup a cluster, fencing daemon and now the big deal is a storage.
All the nodes see the disks as separate disks, but not as a single storage:
What I want to do is to have at least RAID1 or RAID5 from my 8 disks, then set up either GFS2 over it or CLVM+GFS2.
I'm afraid, that software RAID (dmraid) won't work effectively here.
I wonder, what can I do here in order not to have very poor integrity?
I'm going to set up Proxmox cluster, the schema of hardware is the next:
setup.png
As you can see - I have 2 nodes with identical hardware (Mainboard TYAN S7050, Intel(R) Xeon(R) CPU E5-2620 CPU), on every server i have LSI SAS HBA 9207-8i controllers through which the nodes are connected to Supermicro SCE 837E26-RJBOD1 shared storage (using the special cable - External mSASx4 (SFF-8088) to mSASx4 (SFF-8088) cable).
I'd setup a cluster, fencing daemon and now the big deal is a storage.
All the nodes see the disks as separate disks, but not as a single storage:
Code:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 93.2G 0 disk
├─sda1 8:1 0 511M 0 part
│ └─md0 9:0 0 511M 0 raid1 /boot
└─sda2 8:2 0 92.7G 0 part
└─md1 9:1 0 92.7G 0 raid1
├─pve-root (dm-0) 253:0 0 23.3G 0 lvm /
├─pve-swap (dm-9) 253:9 0 11.6G 0 lvm [SWAP]
└─pve-data (dm-10) 253:10 0 46.2G 0 lvm /var/lib/vz
sdb 8:16 0 93.2G 0 disk
├─sdb1 8:17 0 511M 0 part
│ └─md0 9:0 0 511M 0 raid1 /boot
└─sdb2 8:18 0 92.7G 0 part
└─md1 9:1 0 92.7G 0 raid1
├─pve-root (dm-0) 253:0 0 23.3G 0 lvm /
├─pve-swap (dm-9) 253:9 0 11.6G 0 lvm [SWAP]
└─pve-data (dm-10) 253:10 0 46.2G 0 lvm /var/lib/vz
sdc 8:32 0 558.9G 0 disk
└─35000cca041935468 (dm-1) 253:1 0 558.9G 0 mpath
sdd 8:48 0 558.9G 0 disk
└─35000cca041933700 (dm-2) 253:2 0 558.9G 0 mpath
sde 8:64 0 558.9G 0 disk
└─35000cca04194edd4 (dm-3) 253:3 0 558.9G 0 mpath
sdf 8:80 0 558.9G 0 disk
└─35000cca04194d080 (dm-4) 253:4 0 558.9G 0 mpath
sdg 8:96 0 558.9G 0 disk
└─35000cca041927e74 (dm-5) 253:5 0 558.9G 0 mpath
sdh 8:112 0 558.9G 0 disk
└─35000cca04193a90c (dm-6) 253:6 0 558.9G 0 mpath
sdi 8:128 0 558.9G 0 disk
└─35000cca04193a51c (dm-7) 253:7 0 558.9G 0 mpath
sdj 8:144 0 558.9G 0 disk
└─35000cca04192f58c (dm-8) 253:8 0 558.9G 0 mpathI'm afraid, that software RAID (dmraid) won't work effectively here.
I wonder, what can I do here in order not to have very poor integrity?