Personally, I'm a little more concerned that he's running software
RAID 1 on top of a physical RAID 0

I totally agree with this...


If one of the physical disks fails, he loses everything.  There is no
protection at all from failure the way he has it set up...

As I understood he has:
+--------+--------+--------+--------+
| Disk 1 | Disk 2 | Disk 3 | Disk 4 |
+--------+--------+--------+--------+
| RAID 0          | RAID 0          | <- Via P420i RAID controller
+-----------------+-----------------+
|               RAID 1              | <- Via MD RAID
+-----------------------------------+
| Whatever Partition, LVM, FS etc.  |
+-----------------------------------+

Is this correct Asif?

If it's correct, one (or two - it depends) disk can fail without a data loss.


"It has two disks configured as single disk lun (raid 0) and
provisioned to the OS and built two linux software raid1"

Just buy more cache and build it from scratch.

Best regards,
Dennis

--
ubuntu-server mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-server
More info: https://wiki.ubuntu.com/ServerTeam

Reply via email to