A UNIX administrator notifies the storage administrator that extra LUNs can be seen on a UNIX server. The LUNs appear to be NTFS file systems. Which of the following MOST likely happened?

The correct answer is C. The HBA allocation is wrong. The MOST likely cause is that the HBA (Host Bus Adapter) allocation (zoning/masking) is wrong (C). In SAN environments, LUN masking and HBA zoning control which servers can see which LUNs. NTFS is a Windows file system - a UNIX server should never see Windows LUNs under a…

Technical Integration of Enterprise Components

Question

Options

AThe iSCSI initiator was not restarted.
BThe NTFS LUNs are snapshots.
CThe HBA allocation is wrong.
DThe UNIX server is multipathed.

How the community answered

(37 responses)

A
16% (6)
B
8% (3)
C
73% (27)
D
3% (1)

Explanation

The MOST likely cause is that the HBA (Host Bus Adapter) allocation (zoning/masking) is wrong (C). In SAN environments, LUN masking and HBA zoning control which servers can see which LUNs. NTFS is a Windows file system - a UNIX server should never see Windows LUNs under a correct configuration. If a UNIX server is seeing NTFS LUNs, it means the SAN zoning or LUN masking was misconfigured, allowing the UNIX server's HBA to access LUNs intended for Windows servers. Multipathing (D) provides redundant paths to the same LUNs and would not expose foreign LUNs. iSCSI initiator restart (A) and snapshots (B) are unrelated to cross-platform LUN visibility.

Topics

#SAN#HBA allocation#LUN masking#storage administration

Community Discussion

No community discussion yet for this question.

Full CAS-001 Practice