Platform Notes: Using luxadm Software

Displaying and Setting NVRAM

Enabling and Disabling Fast Write (fast_write )

Use the fast_write subcommand to enable or disable the use of the NVRAM to enhance the performance of writes in the SPARCstorage Array.

Supported on:


luxadm [ -v ] 
fast_write [-s] -c pathname

Table 2-26 fast_write Options and Arguments

Option/Argument 

Description 

pathname

A SPARCstorage Array controller or an individual disk 

-e

Causes the SPARCstorage Array to save the change so it will persist across power-cycles 

-c

Enables fast writes for synchronous writes only 

-e

Enables fast writes 

-d

Disables fast writes 

Displaying Fast Write Data (nvram_data)

Use the nvram_data subcommand to display the amount of fast write data in the NVRAM for a specific disk. This command can only be used for an individual disk.

Supported on:


luxadm [ -v ] nvram_data pathname

Table 2-27 nvram_data Options and Arguments

Option/Argument 

Description 

pathname

A SPARCstorage Array controller or an individual disk 

Purging Fast Write Data from NVRAM (purge)

Use the purge subcommand to purge any fast write data from NVRAM for one or more disks.

Supported on:


Caution - Caution -

Use the purge subcommand with caution, usually only when a drive has failed.



luxadm [ -v ] purge pathname 

Table 2-28 purge Options and Arguments

Option/Argument 

Description 

pathname

A SPARCstorage Array controller or an individual disk. If you specify a SPARCstorage Array controller, fast write data for all disks associated with that controller will be purged 

Flushing NVRAM (sync_cache)

Use the sync_cache subcommand to flush all outstanding writes for one or more disks from NVRAM to the media

Supported on:


luxadm [ -v ] sync_cache pathname

Table 2-29 sync_cache Options and Arguments

Option/Argument 

Description 

pathname

A SPARCstorage Array controller or an individual disk. If you specify a SPARCstorage Array controller, outstanding writes for all disks associated with that controller will be flushed