VIO Quick sheet / Cheet Sheet
apv-quicksheet
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Aix
Aix Booting Process
Loading the boot image of AIX After POST, the firmware (System Read Only Storage) detects the 1st bootable device stored in the bootlist. (here it is hdisk0) then the bootstrap code (software ROS) i.e. 1st 512 bytes of the hard disk loads to RAM. Bootstrap code locates the Boot Logical Volume (BLV = hd5) from
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IBM VIOS CDROM – DVDROM (Virtual Optical Device)
CDROM – DVDROM (Virtual Optical Device): Any optical device equipped on the Virtual I/O Server partition (either CD-ROM, DVD-ROM, or DVD-RAM) can be virtualized and assigned at any logical partition, one at a time, using the same virtual SCSI adapter provided to virtual disks. Virtual optical devices can be used to install the operating system
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Aix using mkcd and creating a bootable ISO image from mksysb images
Create an ISO image of AIXLPAR2 from an existing mksysb file. I had already created a mksysb file of AIXLPAR2 in /usr/sap/put/AIXLPAR2-mksysb. root@AIXLPAR2 /usr/sap/put # mkcd -L -S -I /usr/sap/put/image -m /usr/sap/put/AIXLPAR2-mksysb Initializing mkcd log: /var/adm/ras/mkcd.log… Verifying command parameters… Creating temporary file system: /mkcd/cd_fs… Populating the CD or DVD file system… Building chrp boot image…
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How to create Etherchannel with SEA VIO in IBM
Configuring your SEA with Etherchannel. First check the shared virtual ethernet adapters you have – $ lsmap -all -net SVEA Physloc —— ——————————————– ent8 U8231.E2D.06C83BT-V1-C11-T1 SEA ent11 Backing device ent10 Status Available Physloc SVEA Physloc —— ——————————————– ent9 U8231.E2D.06C83BT-V1-C12-T1 SEA NO SHARED ETHERNET ADAPTER FOUND $ Then we need to check what adapters we can
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How to change adapter properties of the SEA VIO IBM
Overview One of the problems that one can often run into is that you need to change some characterstic on the ethernet adapter that you are using for the SEA. One example is that you need to change the speed from say autonegotiate to 100 full duplex. If you simply go to the root user
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How to get the Network Card speed on AIX
There are several ways to get this info. # netstat -v | grep Speed Media Speed Selected: Auto negotiation Media Speed Running: 1000 Mbps Full Duplex Media Speed Selected: Auto negotiation Media Speed Running: 1000 Mbps Full Duplex # entstat -d en0 #for en in `netstat -i | grep en | awk ‘{print $1}’ |
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Aix Get WWN Number of fcs / HBA in San switch acceptable format
lscfg -vpl fcs* | grep Z8 | cut -d . -f10 | sed ‘s/../&:/g;s/:$//’;hostname
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EMC and MPIO in AIX
You can run into an issue with EMC storage on AIX systems using MPIO (No Powerpath) for your boot disks: After installing the ODM_DEFINITONS of EMC Symmetrix on your client system, the system won’t boot any more and will hang with LED 554 (unable to find boot disk). The boot hang (LED 554) is not
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Aix : Grow / expand your rootvg on the fly (from 6.1 TL 4)
Increase rootvg dynamically If your rootvg “disk” is actually virtual, such as a SAN LUN or a logical volume on the VIO server, then it usually can be expanded on the SAN (or using extendlv on the VIOS) and then recognised on the AIX LPAR using the -g flag of the chvg command: chvg -g rootvg Note: this is supported
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