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Vmesg – HP VMA-series Memory Arrays User Manual

Page 220

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220

HP VMA SAN Gateway User’s Guide

AM456-9026A

vmesg

The

vmesg

utility displays kernel log messages, and is primarily used for debugging purposes.

Syntax

vmesg

Target S/W

Displays the software / firmware version
running on HP VMA Array.

Memory

Displays the size in bytes of usable system
capacity. For flash VIMMs, this value changes
based on formatted capacity.

Memory Type

Displays the size and type of populated
VIMMs.

RAID groups

Displays the number of 5-VIMM RAID
groups.

Spare VIMMs are not counted.

Granularity

Displays the smallest access granularity for I/O
request in bytes.

RingSize

Displays the size of driver DMA descriptor ring
per HP VMA Array.

Must be power of 2 with range of

2

-

4096

.

IrqTune

Displays the Interrupt combining tunable with

0

= disabled and

4095

being the highest value.

IoTimeout

Displays the time in seconds before the device
driver declares an I/O as stuck and disables HP
VMA Array I/O access.

0

= disables timeout.

NoMSI

When set to

1

, specifies that the driver will not

attempt to allocate a PCIe MSI-based interrupt
vector.

Debug

Displays the current value of driver debug
mask.

0

= no debug messages.

Serial #

Displays the HP VMA Array serial number
stored on its EEPROM and also shown on the
label on the back of the unit.

Mgmt. MAC

Displays the HP VMA Array Ethernet port
MAC address, useful for adding into a DHCP
server configuration file.

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