You have just allocated 10 LUNs on a Hitachi Unified Storage system to a HP-UX 11.i host. You now need to verify that the host can see the new storage. Which utility should you run on the HPUX host?

The correct answer is C. ioscan. ioscan (option C) is the correct HP-UX utility for scanning the I/O subsystem and discovering newly attached hardware, including LUNs presented from a SAN. After allocating LUNs, running ioscan -fnC disk forces a rescan and lists all disk devices the host can see, confirming the

Verification and Testing

Question

Options

Acfgmgr
Bdiskpart
Cioscan
Ddevfsadm

How the community answered

(33 responses)

A
3% (1)
B
6% (2)
C
91% (30)

Explanation

ioscan (option C) is the correct HP-UX utility for scanning the I/O subsystem and discovering newly attached hardware, including LUNs presented from a SAN. After allocating LUNs, running ioscan -fnC disk forces a rescan and lists all disk devices the host can see, confirming the new storage is visible. Option A (cfgmgr) is the AIX equivalent - it's the right tool on IBM systems, not HP-UX. Option B (diskpart) is a Windows disk partitioning utility and has no place on any Unix system. Option D (devfsadm) belongs to Solaris, where it refreshes the /dev device tree.

Memory tip: Think "IOscan for HP-UX" - both have an X, and you're scanning I/O. If you see HP-UX + storage discovery, ioscan is always the answer.

Topics

#HP-UX#LUN discovery#ioscan#storage allocation

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