<div dir="auto"><br><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Wed, 20 Dec 2023, 11:51 Henrik Morsing via GLLUG, <<a href="mailto:gllug@mailman.lug.org.uk">gllug@mailman.lug.org.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Good morning,<br>
<br>
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.<br>
<br>
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).<br></blockquote></div><div dir="auto"><br></div><div dir="auto">Hi,</div><div dir="auto"><br></div><div dir="auto">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.</div><div dir="auto"><br></div><div dir="auto">There are lots of different reasons to go readonly, so without logs, it's difficult to give any helpful info.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div class="gmail_quote" dir="auto"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"></blockquote></div></div>