fstab, purpose of "errors=remount-ro"

[alaint]

Hi,
I ran into a surprise when testing my LSI SAS9212 raid functionality on my boot partition.
As soon as I unplug and plug back a drive from my raid, the root partition gets mounted in Read Only while being reconstruct.
To have the system back in normal working condition, I have to reboot after the raid is rebuild.

When a raid goes bad, you normally just want to swap the bad drive without having any interruption.

I have never saw that config (errors=remount-ro), as default, on any other distribution .. does it really have any positive effect on any HW problems?
I think this option may just create more trouble then anything else and would be better not to have it has default, no?
thanks,
alain

 

[GT1]

i dont know to what distris you're referring to that dont have a remount-r(ead)o(nly) as default action on any error with the filesystem.

i'd go check if your raid is actually a raid and not a jbod.

 

[dietmar]

I have never saw that config (errors=remount-ro), as default, on any other distribution

What action do you suggest in case of errors?. Besides, the whole purpose of a HW RAID is that you don't get errors here - You should check your RAID setup instead.

 

[alaint]

solution : removed the LSI SAS9212, I do not recommend that card with Proxmox. Installed a 3ware 9650se-4LPML, no amazing performance but works well. thanks.