A nomount dbua instance sitting on our DR server?

I was getting ready for a storage refresh on one of our DR servers when I saw a database instance I was unfamiliar with named DBUA2758156. From the name I assume it is something associated with the database upgrade assistant but I have no idea what. It is in nomount mode, has been running for 5 days and has an orapw and init.ora file (also with a timestamp from 5 days ago) but no entry in /etc/oratab. Googling and searching metalink just turns up a bunch of DBUA documentation.

I'm tempted to just try shutting it down but since I've never seen anything like this before I opened an SR and thought I'd check if anyone here had seen anything similar.

This is the init.ora file:

db_name=DBUA2758
db_unique_name=DBUA2758156
shared_pool_size=128m
cpu_count=1
diagnostic_dest=/app/oracle/product/11.2.0.3/log _enable_NUMA_support=false

Full set of background processes:

zoracle  26744     1  0 Oct02 ?        00:00:58 ora_pmon_DBUA2758156
zoracle  26748     1  0 Oct02 ?        00:01:03 ora_psp0_DBUA2758156
zoracle  26752     1  1 Oct02 ?        01:48:58 ora_vktm_DBUA2758156
zoracle  26758     1  0 Oct02 ?        00:00:12 ora_gen0_DBUA2758156
zoracle  26762     1  0 Oct02 ?        00:00:17 ora_diag_DBUA2758156
zoracle  26766     1  0 Oct02 ?        00:00:19 ora_dbrm_DBUA2758156
zoracle  26770     1  0 Oct02 ?        00:03:06 ora_dia0_DBUA2758156
zoracle  26774     1  0 Oct02 ?        00:00:12 ora_mman_DBUA2758156
zoracle  26778     1  0 Oct02 ?        00:00:13 ora_dbw0_DBUA2758156
zoracle  26782     1  0 Oct02 ?        00:00:12 ora_lgwr_DBUA2758156
zoracle  26787     1  0 Oct02 ?        00:00:17 ora_ckpt_DBUA2758156
zoracle  26791     1  0 Oct02 ?        00:00:07 ora_smon_DBUA2758156
zoracle  26795     1  0 Oct02 ?        00:00:05 ora_reco_DBUA2758156
zoracle  26799     1  0 Oct02 ?        00:00:33 ora_mmon_DBUA2758156
zoracle  26803     1  0 Oct02 ?        00:00:55 ora_mmnl_DBUA2758156

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