Posts Tagged ‘device’

Change default values on ODM for Fibre

Hello Everybody …

Sometimes for performance recommendations or redundancy solutions, you will need to change some parameters on fibre card, like fc_err_recov & dyntrk

TEST_SERVER#lsattr -El fscsi0
attach       none      How this adapter is CONNECTED         False
dyntrk       yes       Dynamic Tracking of FC Devices        True+
fc_err_recov delayed FC Fabric Event Error RECOVERY Policy True+
scsi_id                Adapter SCSI ID                       False
sw_fc_class  3         FC Class for Fabric                   True

 

remotely eject tap from server

use the following command to remotely eject the tap from a tap device to minimize your time & safe your data:

#mt offline

it will eject the tap from the default device tap unit “rmt0”.

list mksysb from tap

try this command to list files from a mksysb tap:

#lsmksysb

the previous command will list from the default tap device “rmt0”.

if you have another tap, try the following:

#lsmksysb -f /dev/rmt5

rename a device

Use the following command to rename a device:

# rendev -l hdisk4 -n hdisk53

where the ‘hdisk4’ is your device and ‘hdisk53’ is the new name.

HINT: The device must be free