What is LUN in AIX?

A lun in aix appears as an hdisk. lspv will show all configured disks and whether or not they are configured. to a volume group. lspv -l hdisk# will tell you what is on the hdisk if its. part of a volume group and the vg is online.

How do you add a LUN in AIX?

How to extend vg by adding a LUN on AIX

  1. Assign the LUN to the same server in the storage subsystem.
  2. run cfgmgr on server.
  3. it will give u one new hdd.
  4. extend ur vg to add this new disk.
  5. check with lsvg command for new size.

How do I find disk information in AIX?

Hi, #bootinfo -s hdiskX–> gives the size of the given disk. If you need the size of all the disks, check for the disks which are all available. It gives the sizes of all the disks.

How do you find the LUN?

Using Disk Manager

  1. Access Disk Manager under “Computer Management” in “Server Manager” or in the command prompt with diskmgmt.msc.
  2. Right-Click on the side-bar of the disk you wich to view and select “Properties”
  3. You will see the LUN number and the target name. In this example it’s “LUN 3” and “PURE FlashArray”

Where is No of WWN disk in AIX?

How do I find my WWN in AIX?

  1. Log in as root.
  2. Type lscfg -vl fcs x , where x is the adapter number. The network address is the Fibre Channel adapter port WWPN value. Notes: The lscfg -vl fcsx ROS level identifies the Fibre Channel adapter firmware level.

How can you get host channel ID LUN of SCSI disk?

For each additional logical unit number (LUN) that needs to be discovered by the Linux kernel, perform the following steps: At the command prompt type echo “scsi-add-single-device H C I L” >/proc/scsi/scsi where H is the host adapter, C is the channel, I id the ID and L is the LUN and press the key.

How do I increase group size in AIX?

Procedure

  1. Login to the VM and use the lsvg command to list the volume groups.
  2. Use the chvg -g command to expand the size of volume group rootvg .
  3. Use the df -k command to list the file systems.
  4. Use the chfs -a size command to increase the size of the /dev/hd10opt file system.

How do I add a VG disk to AIX?

How to Add a Disk on AIX LVM

  1. Add the physical or virtual disk to the logical partition.
  2. Rescan your hardware so that the OS is aware of your new disk.
  3. Check to see your disk.
  4. Associate your new disk to a volume group.
  5. Now you can look at the size of hdisk2.
  6. Create a log logical volume for jfs2.

How do I know if a disk is failing in AIX?

Troubleshooting disk drive problems

  1. With root authority, type the following SMIT fast path on the command line:
  2. Select Current Shell Diagnostics to enter the AIX® Diagnostics tool.
  3. After you read the Diagnostics Operating Instructions screen, press Enter.
  4. Select Diagnostics Routines.
  5. Select System Verification.

How do I find my PP size in AIX?

AIX can use the specific numbers as the PP size. and the pp size is the constant one.. which means it should be in any one of the below numbers. 1, 2, 4, 8, 16, 32, 64,128,512,1024, (MB). ….How to calculate PP size in aix?

Scalable Volume Groups
hdisk size between: Default PP Size
2,040MB – 4,080MB 2 MB
4,080MB – 8,160MB 4 MB
8,160MB – 16,320MB 8 MB

How do I find my SCSI ID Linux?

On an iSCSI target system, type ls -l /dev/disk/by-id at the command line to see any attached iSCSI disks along with their WWID. This works equally well for locally attached SCSI drives.

What does the Lun appear to Aix as?

The LUN appears to AIX as a hdisk device (hdisk11). This disk has been allocated to an existing volume group (rootvg). Figure 2. IBM ESS to DS8300 storage migration – Dedicated I/O – LVM Mirror – Migration state Prior to migrating, we performed a backup of the system (including a mksysb).

What is a Luna in Aix?

A lun in aix appears as an hdisk. part of a volume group and the vg is online. issuing lsdev -c disk output will show like Arry disk drive. . It depends a great deal upon what kind of external storage subsystem you have.

What kind of disk is Lun?

What kind of luns, scsi, fc, sas? A lun in aix appears as an hdisk. part of a volume group and the vg is online. issuing lsdev -c disk output will show like Arry disk drive. . It depends a great deal upon what kind of external storage subsystem you have.

What is Aix LVM and why do we need it?

Fortunately, the AIX LVM is a very mature, stable and robust tool. It can greatly empower us when faced with these challenges. Using LVM, we can reduce the outage required for migrating the data.