ECS: OBS: xDoctor RAP194: Cluster is Hijacked due to Reused Segments

Summary: ECS: xDoctor RAP194: Cluster is hijacked due to reused segments.

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Instructions

Only applicable for ECS 3.9.x and OBS 4.x

Detection

Seen on ECS where RackID and hence segments are reused.

In the example below, sed id 30, 64, 101, 104 and 224 are being used more than once.

admin@provo-maple:~> getclusterinfo

Registered Racks
================

Ip Address        epoxy   seg mac             seg color    seg id    NAN Hostname
===============   =====   =================   ==========   =======   ============
169.254.19.5      False   00:00:00:00:00:00   auburn       19        layton-auburn.nanlocal
169.254.30.1      False   00:00:00:00:00:00   mantis       30        provo-mantis.nanlocal
169.254.30.5      False   00:00:00:00:00:00   mantis       30        layton-mantis.nanlocal
169.254.64.1      False   00:00:00:00:00:00   sangria      64        provo-sangria.nanlocal
169.254.64.5      False   00:00:00:00:00:00   sangria      64        layton-sangria.nanlocal
169.254.64.9      False   00:00:00:00:00:00   sangria      64        boston-sangria.nanlocal
169.254.99.5      False   00:00:00:00:00:00   malachite    99        layton-malachite.nanlocal
169.254.101.1     False   00:00:00:00:00:00   black        101       provo-black.nanlocal
169.254.101.5     False   00:00:00:00:00:00   black        101       layton-black.nanlocal
169.254.104.1     False   00:00:00:00:00:00   acid         104       provo-acid.nanlocal
169.254.104.5     False   00:00:00:00:00:00   acid         104       layton-acid.nanlocal
169.254.121.1     False   00:00:00:00:00:00   licorice     121       provo-licorice.nanlocal
169.254.224.1     False   00:00:00:00:00:00   mattesilver   224       provo-mattesilver.nanlocal
169.254.224.5     False   00:00:00:00:00:00   mattesilver   224       layton-mattesilver.nanlocal

xDoctor reports RAP194 when such a System configuration is detected:

admin@provo-maple:~> sudo xdoctor
...
2025-02-25 17:13:26,355: 1740503606.236 - INFO    : Validating System Config ...
2025-02-25 17:13:26,355: 1740503606.236 - WARNING : System Status = HIGHJACKED
2025-02-25 17:13:26,355: 1740503606.236 - WARNING : Cluster is highjacked due to reused segments
...

-------------------------------------------------------------
ERROR - Cluster is highjacked due to reused segments
-------------------------------------------------------------
RAP       = RAP194
Solution  = KB 289649
Timestamp = 2025-02-25_171418
PSNT      = xxxxxxx-224 @ 5.0.1.0-102.0

Reach out to Dell Support and mention to this article.

Affected Products

ECS
Article Properties
Article Number: 000289649
Article Type: How To
Last Modified: 11 Dec 2025
Version:  2
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