Today one user complained, that he is not able to delete files. Most probably this was due to non printable charter in the file name. # cd /oracle # ls -ltr total 7151632 drwxr-xr-x 2 oracle oinstall 256 May 27 2008 lost+found drwxr-xr-x 3 oracle oinstall 256 May 28 2008 app drwxr-xr-x 2 oracle oinstall …
The following steps reduce the size of the /var or /tmp file system in all supported releases of AIX Versions 4 and 5. If either file system on your machine is 8192KB in size or smaller, you probably should not reduce it. The default size of the /var file system (on installation) is 4096KB, which …
Lists SSA disks that are currently not being used by either the OS or other applications. Lists what size the disk is and which enclosure and slot the disk is located in. #!/bin/ksh printf “Please wait, this could take a while… nn” for pdisk in `lsdev -Cc pdisk | awk ‘/SSA/{print $1}’`do hdisk=`ssaxlate -l ${pdisk}` …
This document describes how to boot the system into Service mode (also known as Maintenance mode) to install the machine, restore an operating system backup, or perform maintenance on the rootvg volume group. The information in this document applies to AIX Versions 3.x, 4.x and 5.x. Booting microchannel systems into Service mode Booting PCI-based systems …
Create a RAM disk of 10 MB # mkramdisk 10M /dev/rramdisk0 Create a JFS File System on this RAM disk # mkfs -V jfs /dev/rramdisk0 mkfs:destroy /dev/rramdisk0 (yes) ? y Create Mountpoint # mkdir /ramdisk Mount RAM File System # mount -V jfs -o nointegrity /dev/ramdisk0 /ramdisk The purpose of the mkramdisk command is to …
# mount -v cdrfs -o ro /dev/cd0 /mnt
You can identify hot spot problems with your logical volumes and remedy those problems without interrupting the use of your system. A hot-spot problem occurs when some of the logical partitions on your disk have so much disk I/O that your system performance noticeably suffers. The first step toward solving the problem is to identify …
1. Overview The High Availability (HA) feature of application allows a properly configured application system to automatically recover from a number of possible failures, with the goal of eliminating all single points of failure in the system. The same functionality can be used to minimize the impact of regularly scheduled maintenance and/or software upgrades. The …
Aix: Install and Configuration HACMP [ Overview] Read More »
1. mkszfile 2. Edit /image.data and add in multiple copies -in the lv_data section change COPIES = 2 or each lv (might be some other fields to change – compare a mirrored to a non-mirrored lv to check). ##Command used for lv_data; /usr/sbin/lslv lv_data: VOLUME_GROUP= rootvg LV_SOURCE_DISK_LIST= hdisk0 LV_IDENTIFIER= 00075ef10000d60000000119e75995ad.1 LOGICAL_VOLUME= …
ibmcl01 is the hostname of the LPAR… which is a VIOC too oravg is the name of volume group which resides on the SAN disks impacted by the export/reimport Assuming that we want to migrate, on a VIOC, one or more currently SAN disks attached on a local fibre channel adapter to the same one …
Aix: Export and Import a Volume Group After System Crash Read More »