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Category Archives: Operating Systems
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
LVM
LVM :- Logical Volume Manager and it’s a disk Management for Linux/UNIX Systems.
How To Check Linux Hardware Info
lscpu Reports info about the cpu and processing units. lshw Reports detailed/brief info about multiple hardware units like cpu, memory, disk, network adapters etc.
how to Compare between 2 files
how to comapre between 2 files to list the differences between them ??? there is a greate 2 commands which you can use them. first command is diff FILE1 FILE2 and this command just display the difference between the 2 … Continue reading
How to sync users and password between hosts on hacmp
AIX has a wonderful method to synchronize the users and their passwords or any files you need to sync them between HACMP Nodes. there is a command call “rdist”, this command used to transfer files between hosts and make them … Continue reading
uncompress files using jar command
you can uncompressed zipping files using java, specially “jar” command: to do that , try the following : /usr/java6/bin/jar -xvf /tmp/test.zip