[ClusterLabs] SBD on shared disk

[Gang He]

Hello Strahil,

This kind of configuration should not be recommended.
Why?
Since SBD partition need to be accessed by the cluster nodes stably/frequently.
But the other partition (for XFS file system) is probably under extreme pressure conditions, 
in that case, the SBD partition IO requests will starve to timeout.

Thanks
Gang 

________________________________________
From: Users <users-bounces at clusterlabs.org> on behalf of Strahil Nikolov <hunter86_bg at yahoo.com>
Sent: Thursday, February 6, 2020 5:15 AM
To: users at clusterlabs.org
Subject: [ClusterLabs] SBD on shared disk

Hello Community,

I'm preparing for my EX436 and I was wondering if there are any drawbacks if a shared LUN is split into 2 partitions and the first partition is used for SBD , while the second one for Shared File System (Either XFS for active/passive, or GFS2 for active/active).

Do you see any drawback in such implementation ?
Thanks in advance.

Best Regards,
Strahil Nikolov