[GLLUG] SAN events kill Linux filesystems

[John Hearns]

Have you raised an issue with Dell EMC?

On Sat, 6 Jan 2024 at 10:10, James Dutton via GLLUG <
gllug at mailman.lug.org.uk> wrote:

>
>
> On Wed, 20 Dec 2023, 11:51 Henrik Morsing via GLLUG, <
> gllug at mailman.lug.org.uk> wrote:
>
>>
>> Good morning,
>>
>> Don't know if anyone has come across this but every time a SAN node is
>> powered down on our SAN, even if un-used, we have a handful of Linux LPARs
>> (across multiple frames) with filesystems going into read-only.
>>
>> We had migrated away from our IBM V9000 and many months later powered it
>> off resulting in the first occurrence of this issue. Later on, we patched
>> our new EMC 9200T, which (I'm not a storage person) has two... linked
>> systems?... with two nodes each, so four node in total. Even when the first
>> node rebooted, we had a handful of Linux systems going into read-only
>> (Other OSes un-affected).
>>
>
> Hi,
>
> Is there anything in the kernel logs? There should be something in there
> that explains why Linux thought it best to switch the fs to readonly.
>
> There are lots of different reasons to go readonly, so without logs, it's
> difficult to give any helpful info.
>
>
>
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