HP VMA-series Memory Arrays - Manual (Page 220)

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.