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Monthly Archives: February 2015
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”.
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
Error Report Demon
Here are the commands related to error demon in AIX To stop logging run the below command #/usr/lib/errstop To get rid of that log. # rm /var/adm/ras/errlog To restart the daemon, thus creating a new error log
Volume Group Status Area (VGSA)
Information about which PPs that are stale and which PVs are missing within a VG. The LVM and SCSI driver reserves somewhere between 7-10% of the available disk space for LVM maps, etc. Ref: http://www.datadisk.co.uk/html_docs/hp/aix_lvm.htm
Volume Group Descriptor Area (VGDA)
Information about all the LVs and PVs within a VG. The first 64K of a PV is reserved for this area – defined in <sys/bootrecord.h>. The VGDA consists of BOOTRECORD: – first 512 bytes. Allows the Read Only System (ROS) … Continue reading
Volume Group Characteristics
You can find below the meaning of each parameter on Volume Group Characteristics (the output from lsvg vg command): Volume Group: Name of Volume Group. VG State: active/partial. Partial indicates that some of the Physical Volumes in the Volume … Continue reading
en vs et vs ent
most of us has confused between the network devices en, et & ent, you can read the following to put a limit for this confusion 🙂 : ent: The notation ent is used to specify the hardware adapter. It has … Continue reading