On 04/20/2016 09:32 AM, Weiner, Michael wrote:
From: Gordon Messmer
On 04/20/2016 05:33 AM, Weiner, Michael wrote:
I had the opportunity to add another PERC H810 controller along with a PowerVault MD1200 to add more space ... when the server came up and I tried to mount it, I received the following error:
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
Are you sure /dev/sdb is your old array? Can you remove the new controller and troubleshoot the system without it? You might be better off resolving
the problem first, and then making changes.
Yes, I am sure, as the NEW array wasn’t configured at any more but being out of the data center makes the removal problematic unfortunately
I think the concept here is that you ADDED a controller to the system.
This can cause the system to enumerate the bus differently so your
old, existing array may now be /dev/sda or /dev/sdc. This will happen
regardless of whether the new array was initialized or not--it's the
order in which the bus was scanned for controllers.
This is also a very good reason to use labels or UUIDs to identify
devices in your /etc/fstab rather than the /dev name as changing the
hardware around is almost guaranteed to change the /dev names and cause
you untold grief.
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