ao
• Displays Adaptive Optimization issues
• Checks that all PD classes that exist on any node-pair are found on all node-pairs
Format of Possible ao Exception Messages
AO Nodes:<nodelist> "<PDclass> PDs need to be attached to this Node pair"
ao Example
Component ------Summary Description------- Qty
AO Node pairs with unmatched PD types 1
Component -Identifier- ------------Detailed Description------------
AO Nodes:0&1 NL PDs need to be attached to this Node pair
ao Suggestion Action
Use the following CLI commands to view PD distribution: showpd, showpd -p -devtype NL,
showpd -p -devtype NL -nodes 0,1, and showcage. In the example below, there are
72 NL PDs attached to nodes 2&3, but none attached to nodes 0&1. Contact HP support to request
support for moving NL PDs (and possibly cages) from nodes 2&3 to nodes 0&1 for your system.
See “Contacting HP Support about System Setup” (page 73).
cli% showpd -p -devtype NL -nodes 2,3
-----Size(MB)------ ----Ports----
Id CagePos Type RPM State Total Free A B Capacity(GB)
200 12:0:0 NL 7 normal 1848320 1766400 3:0:1* 2:0:1 2000
201 12:1:0 NL 7 normal 1848320 1766400 3:0:1 2:0:1* 2000
202 12:2:0 NL 7 normal 1848320 1765376 3:0:1* 2:0:1 2000
...
303 17:22:0 NL 7 normal 1848320 1765376 3:0:2 2:0:2* 2000
---------------------------------------------------------------------------
72 total 133079040 127172608
cli% showpd -p -devtype NL -nodes 0,1
No PDs listed
cabling
Displays issues with cabling of drive enclosures.
• Cages cabled correctly to nodes
• Cages cabled correctly to cage I/O modules and ports
• Cages with broken cables
• Cable daisy-chain lengths balanced and supported length
• Cable daisy-chain order
• Cages with no PDs with primary path to nodes
NOTE: To avoid any cabling errors, all drive enclosures must have at least one or more hard
drive(s) installed before powering on the enclosure.
Troubleshooting Storage System Components 37
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