Symptoms

The SDNAS container is killed due to an out of memory condition leading to a node panic.This article does not apply for panics during a PowerStoreOS upgrade or NAS server move.This issue affects PowerStore clusters running versions between 3.5.x and 3.6.1.1.

Cause

The issue is a result of a new design for SDNAS interaction with backend block devices that started with PowerStore version 3.5.Due to an issue in the heartbeat implementation, memory that is consumed may not be freed, which leads to an OOM condition and consequent panic.

Resolution

The fix is available in PowerStoreOS 3.6.1.2 and PowerStoreOS 4.0.0.0 and later code.Contact Dell Technical Support or your Authorized Service Representative, and quote this article ID if any assistance is required.

Support Cases