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ODM Delete Command easy Step to remove a Disk odmdelete -o CuDv -q name=hdisk1 Check the status of a mksysb tape (Guessing tape drive is rmt0) chdev -l rmt0 -a block_size=0 mt -t /dev/rmt0.1 fsf 3 lsmksysb -c -f /dev/rmt0.1 or restore -Tvf /dev/rmt0.1 -s4 How to remove vpath rmdev -Rdl dpo NIM showlog command example nim -o showlog -a full_log=yes -a log_type=nimerr 530TL4spot Command to boot from network (provided maint boot enabled in the boot server) bootlist -m normal ent0 speed=auto duplex=auto gateway=X.X.X.X bserver=X.X.X.X client=X.X.X.X ( replace x with the real IPs and speed/duplex according to your network speed settings) Remove a mksysb image from NIM Server nim -o remove -a rm_image=yes mksysbname Create a image.data from mksysb image restore -xvqf /images/mksysb.image ./image.data List all ODM Definitions odmget CuAt - to see all the attributes odmget CuDv - to see all the devices To remove a mirror copy from a LV /usr/sbin/rmlvcopy fslv01 1 hdisk4 hdisk5 Creating a spot from mksysb nim -o define -t spot -a source=mksysb1 -a server=master -a location=/export/spot spot1 Restore a file from mksysb image restore -xvqf ./mksysb.image ./etc/passwd Create an lpp source from existing directory nim -o define -t lpp_source -a server=master -a location=/export/lpp_source/530TL5lpp 530TL5lpp Create a spot from existing lpp source nim -o define -t spot -a server=master -a location=/export/spot/530TL5spot -a source=530TL5lpp 530TL5spot How to update a lpp source from a downloaded file sets gencopy -X -b "-qv" -d /TMP_FOR_UPDATE_CD -t /export/lpp_source/530TL6lpp/ -f ALL 2>&1

Learn 10 good UNIX usage habits from IBM http://www-128.ibm.com/developerworks/aix/library/au-badunixhabits.html How to find a Tape is Mksysb or not Run this command to see the list of files. If it doesn't show anything then the tape is NOT MKSYSB chdev -l rmt0 -a block_size=0 mt -t /dev/rmt0.1 fsf 3 lsmksysb -c -f //dev/rmt0.1 or restore -Tvf /dev/rmt0.1 -s4 To define a mksysb resource custimgname in NIM nim -o define -t mksysb -a server=master -a location=/images/custimg.img custimgname How to find out the Physical Location of a disk lsdev -Cc disk -l hdisk0 -F "name location" Install all software from CD /usr/sbin/installp -aX -Y -d/dev/cd0 * all Install Atape software from utility directory /usr/sbin/installp -aX -Y -d/utility Atape* To display BOS installation status information while the installation is progressing, run the following command on the master: lsnim -a info -a Cstate ClientName or lsnim -l ClientName To perform a base system installaion on a machine venus (if you don't want any bosinst_data, script, fbscript. image data then just don't use them in the command line) from the NIM Server then run this. nim -o bos_inst -a source=rte -a spot=530ML7SP3spot -a lpp_source=530ML7SP3lpp a bosinst_data=No_Prompt -a script=FTPSCR -a fb_script=Install_Drivers\ -a accept_licenses=yes -a preserve_res=yes -a no_client_boot=yes a set_bootlist=no -a force_push=no venus Or with fewer option nim -o bos_inst -a source=rte -a spot=530ML7SP3spot -a lpp_source=530ML7SP3lpp -a bosinst_data=No_Prompt -a script=FTPSCR -a fb_script=Install_Drivers\ -a accept_licenses=yes -a no_client_boot=yes -a force_push=no venus Now boot the client machine from the network To resync a logival volume in AIX. Here is an example Note down the LV IDENTIFIER root@zeus lslv hd6 LOGICAL VOLUME: hd6 VOLUME GROUP: rootvg LV IDENTIFIER: 00c8411e00004c000000011731887e00.2 PERMISSION: read/write VG STATE: active/complete LV STATE: opened/stale TYPE: paging WRITE VERIFY: off MAX LPs: 512 PP SIZE: 128 megabyte(s) COPIES: 2 SCHED POLICY: parallel

LPs: 2 PPs: 4 STALE PPs: 2 BB POLICY: non-relocatable INTER-POLICY: minimum RELOCATABLE: yes INTRA-POLICY: middle UPPER BOUND: 32 MOUNT POINT: N/A LABEL: None MIRROR WRITE CONSISTENCY: off EACH LP COPY ON A SEPARATE PV ?: yes Serialize IO ?: NO Now run this command on the STALE LV root@zeus lresynclv -l 00c8411e00004c000000011731887e00.2

Or this script will resync all the Logical Volume of all Volume Groups. Modify this as per your requirement. This one I created for our test environment and so far seems to be working in test environment. Please test it in a test box before you use lsvg|while read VG do lsvg l $VG|awk '{print $1}' done|sed -e '/LV/d' -e '/\:/d'|while read LV do lslv $LV|grep 'LV IDENT'|awk '{print $3}' done|while read LVIDENT do lresynclv -l $LVIDENT done To add all the filesets on /dev/cd0 to NIM lpp source 530TL5lpp nim -o update -a packages=all -a source=/dev/cd0 530ML5lpp To add all the filesets from a directory /utility/aixml to NIM lpp source 530TL5lpp nim -o update -a packages=all -a source=/utility/aixml 530ML5lpp How to create a NIM LPP Source from CD To create from an existing directory use the full path of the existing directory ex. /export/lpp_source/510ML2lpp instead of /dev/cd0 gencopy -X -b "-qv" -d /dev/cd0 -t /export/lpp_source/510ML8lpp -f file 2>&1 How to create a lpp_source from existing directory i,e /export/lpp_source/520TL10SP2lpp nim -o define -t lpp_source -a server=master -a location=/export/lpp_source/520TL10SP2 lpp 520TL10SP2lpp NIM Network boot problem # smitty nim_control_boot ==> >> Limit Boot Image Creation to Defined Interfaces? >> It was currently set to "NO" Booting a Client from NIM Server in diagnostics mode from the command line Follow this procedure for performing the diag operation from the master and client. To perform the diag operation from the client, enter: nimclient -o diag -a spot=SPOTName To perform the diag operation from the master, enter: nim -o diag -a spot=SPOTName MachineObjectName How to restore a Customer non bootable mksysb image to Client M/C (Try to use the next procedure in NIM Server and try NIM load instead)

Don't try restbyname in NIM Server. It will overwrite all the NIM server data with the tape Image. Now either use tctl or mt ( Guessing we are using rmt0) If you want to restore in client M/C itself then tctl -f /dev/rmt0.1 rewind tctl -f /dev/rmt0.1 fsf 3 restbyname -xqf /dev/rmt0.1 How to create a NIM Image from Customer mksysb Tape In NIM Server check a filesystem with at least 5-6 GB free space. I prefer seperate filesystem for this. Let us guess we are using /export/mksysb directory so cd to /export/mksysb and restore the image from tape for the Server venus cd /export/mksysb chdev -l rmt0 -a block_size=0 (To make sure it can read any block size) mt -t /dev/rmt0.1 fsf 3 dd if=/dev/rmt0.1 of=/images/mksysb.venus bs=4m (and use this image. using 4m to avoid any dd buffer error.) nim -o define -t mksysb -a server=master -a location=/export/mksysb.venus venus_mksysb Now initiate the MKSYSB installation for the client venus nim -o bos_inst -a source=mksysb -a mksysb=venus_mksysb -a spot=530ML7SP3spot -a lpp_source=530ML7SP3lpp -a accept_licenses=yes -a \ no_client_boot=yes -a force_push=no venus All these information might not be necessary. We normally use in our environment to allocate the mksysb and necessary lppsource & spots. In our NIM definition our bosinst.data is called No_Prompt, our Script is called as FTPSCR and FB Script is called Install_Drivers. These are just names but does lot more than then their names said. nim -o allocate -a source=mksysb -a mksysb=mksysb.venus -a lpp_source=530TL5lpp -a spot=530TL5spot -a bosinst_data=No_Prompt -a script=FTPSCR \ -a fb_script=Install_Drivers -a accept_licenses=yes -a boot_client=no venus How to display NIM Machines lsnim -c machines How to display NIM networks lsnim -c networks If NFS Mount failes to mount with following error message - RPC: 1832-019 Program not registered Then -> Run on the client. And if both the server & client is new then run on both uncomment portmap in /etc/rc.tcpip if not already done make sure rc.nfs is not commented out in /etc/inittab stopsrc -g nfs startsrc -s portmap /etc/rc.nfs Now it should mount. Installing Aix when booting from a mksysb tape fails. Try clone load first. Clone load is boot from AIX CD1 and then recover from tape. Or you can try the other procedure too. You need to access the firmware command line prompt, which usually appears as an option in the SMS menus. At the firmware command line prompt, type following two commands: setenv real-base 1000000 reset-all The system will then reboot, and you will be able to boot from tape, assuming that you have an valid boot image on your tape media. Create a Filesystem using command line

mkvg -y testvg hdisk1 mklv -y testlv testvg 500 hdisk1 (500 is 500 LP ) chlv -t jfs2 testlv crfs -v jfs -a nbpi=16384 -A yes -d testlv -p rw -m /custimg crfs -v jfs2 -A yes -d testlv -p rw -m /custimg or Create aJFS2 filesystems on VG testvg with size 10MB mount point /fs1 with adding entry in /etc/filesystems crfs -v jfs2 -g testvg -a size=10M -m /fs1 -A yes ODM command to delete network. odmdelete -q name = en0 -o CuAt odmdelete -q parent = en0 -o CuDv odmdelete -q name = en0 -o CuDv odmdelete -q name = en0 -o CuDep odmdelete -q dependency = en0 -o CuDep odmdelete -q value1 = en0 -o CuDvDr odmdelete -q value3 = en0 -o CuDvDr odmdelete -q name=inet0 -o CuAt Etherchannel problem after loading the server from Customer mksysb tape You must remove the ODM entries first before you configure etherchannel run this on the correct network interface. Ex. en0 odmdelete -q name=en0 -o CuAt odmdelete -q name=inet0 -o CuAt How to remove a failed Disk from ODM If you have been working with a PVID value rather than with an hdisk name, ensure that the PVID is removed from the ODM with the following command. The 32-digit value supplied consists of the PVID plus 16 zeros. For example: odmdelete -q value=0073659c2c6d26f10000000000000000 -o CuAt ( add 16 zeros) To get the PVID run lsvg -p vgname Then run rmlvcopy 1 0073659c2c6d26f1 (16 Digit PVID) Restoring tar backup with absolute pathname to different directory A tar backup created using absolute path names can only be restored to the directory from which it was created. One way to restore it to a different directory is by using the pax command. For example, suppose you receive a tar tape created using absolute path names. tar -cvf /dev/rmt0 /work/* but want to restore it to the /test directory. The pax command would be: pax -rf /dev/rmt0 -s/work/test/p The -s/work/test/p does the directory change. Determine the path to your system's error log file by running the following command: /usr/lib/errdemon -l To change the maximum size of the error log file enter: /usr/lib/errdemon -s LogSize To change the size of the error log device driver's internal buffer, enter: /usr/lib/errdemon -B BufferSize To list all events for which logging is currently disabled, enter: errpt -t -F Log=0 To list all events for which reporting is currently disabled, enter:

errpt -t -F Report=0 IBM 3494 Library testing commands mtlib -l /dev/lmcp0 -D -E mtlib -l /dev/lmcp0 -qM look man mtlib for more options Vpaths not created for all hdisks of an AIX host or missing vpaths for some hdisks. In some cases a customer may notice that some hdisks are not associated with any vpaths. Or a customer may not see the expected number of vpaths for the number of hdisks that they have on their AIX host. In either case the problem could be caused by the fact that the hdisks with no vpath association are listed in a file called /etc/vpexclude. If this file exists a customer can remove the file and run cfgmgr and the hdisks will now be associated with vpaths. The only way that the vpexclude file can be created is if a customer runs a querysn command on the AIX host or if the customer manually edits the /etc/vpexclude file to include the hdisks. Resetting the NIM state from the command line Follow this procedure for resetting the NIM state from the command line. To return a machine to the ready state, enter: nim -Fo reset MachineName To deallocate resources, enter: nim -o deallocate -a subclass=all MachineName Recovering the /etc/niminfo file from the command line nimconfig -r To list all duplicate and conflicting updates in the /myimages image source directory /usr/lib/instl/lppmgr -d /myimages -u To remove all duplicate and conflicting updates in the /myimages image source directory, type: /usr/lib/instl/lppmgr -d /myimages -u -r How to change the console to tty0 if tty0 not available smitty devices > add a tty >tty rs232 Asynchronous terminal > sa0 ( or sa1) in next screen select port to 0, baud rate to 9600 and Enable Login to enable and hit enter. Now run smitty console and change the device from /dev/lft0 to /dev/tty0 To attempt to boot through a gateway using Ethernet with Duplex & speed Auto, and then try other devices, enter: Bserver=Boot Server, may be your NIM Server too. Even if you don't have a gateway you need to mention it. In that case use 0.0.0.0 as gateway. And client is ther Server you want to load from NIM bootlist -m normal ent0 speed=auto duplex=auto gateway=192.168.0.1 bserver=192.168.0.10 client=192.168.0.45 hdisk0 rmt0 ODMDELETE COMMAND TO DELETE NIM OBJECTS Suppose you want to delete the entry with TRYME mksysb and lsnim shows the name as mksysb.TRYME and you are unable to delete it normal way. MAKE SURE YOU BACKUP NIM DATABSE BEFORE THIS. READ THE LAST LINE TOO. OTHERWISE NIM SERVER WON"T WORK odmget nim_attr >/tmp/nim_attr.out

vi /tmp/nim_attr.out and look for TRYME entry Note down the id no for Ex. id=1161733976 odmdelete -o nim_attr -q id=1161733976 Now Delete it from nim_objects odmget nim_objects >/tmp/nim_objects.out vi that file and note down the id for TRYME odmdelete -o nim_object -q id=1162344443 now from websm screen or smitty nim add the routing information to NIM MASTER object resources -> master ->properties ->nim interface. ( Add the interface again) Identifying the Origin of "core" Files (Collected from Internet) When an application core dumps, a "core" file is placed in the current directory. Core files are often a symptom of a problem that needs attention. You can determine which application caused the "core" file going to the directory where the core file is located and running the command: $ lquerypv -h core 6b0 64 The name of the application causing the core file is listed in the section on the right. In the sample output below, the "ftpd" application caused the core file. 000006B0 7FFFFFFF FFFFFFFF 7FFFFFFF FFFFFFFF |................| 000006C0 00000000 000007D0 7FFFFFFF FFFFFFFF |................| 000006D0 00170000 53245A2C 00000000 00000015 |....S$Z,........| 000006E0 66747064 00000000 00000000 00000000 |ftpd............| 000006F0 00000000 00000000 00000000 00000000 |................| 00000700 00000000 00000000 00000000 000000CF |................| 00000710 00000000 00000020 00000000 000000BE |....... ........| In addition, AIX can be configured to detect when core files are created and mail a message to root, alerting root that an application has failed. The instructions for setting this up are in a README file in the /usr/samples/findcore directory. These programs are delivered with the bos.sysmgt.serv_aid fileset. Extend a filesystem in AIX command line Suppose you want to extend /usr file system to 4GB chfs -a size=4G /usr or chfs -a size=4000M /usr or you want to add some more space like 2GB with existing size chfs -a size=+2G /usr You can extend the root file system same way. Suppose the new size you want is 2GB then chfs -a size=2G / or chfs -a size=2000M / Sendmail Warning: .cf file is out of date: sendmail AIX5.3/8.13.4 supports version 10, .cf file is version 9 Solution : vi /etc/mail/sendmail.cf and change V9 to V10 How to erase complete data from a disk on aix 5.2 TL6 and 5.3TL4 diag -d hdiskX -T format How to make IP changes permanent from command line /usr/sbin/mktcpip -h'P550B_LP01' -a'30.3.0.120' -m'255.255.0.0' -i'en2' -g'30.3.0.120' How to copy from one streaming tape to a another tape tcopy /dev/rmt0 /dev/rmt1

How to check integrety of a tape tapechk How to display all the VLAN Adapter lsdev -Cc adapter -t eth -s vlan How to use BSD style network setting in AIX smit configtcp fast path and then select BSD Style rc Configuration. and configure the /etc/rc.bsdnet file using a standard text editor. How to check the last fsck log of /utility filesystem /sbin/helpers/jfs2/fscklog /utility How to check the inode status of a file or inode or to check last accessed time etc /sbin/helpers/jfs2/istat /etc/passwd or /sbin/helpers/jfs2/istat 40 /dev/hd4 ( to check inode 40 of /dev/hd4) How to cleanup deleted ODM spaces /usr/samples/odm/odmclean -d CuDvDr How to find which fileset contains a particular binary for example ls lslpp -w /usr/bin/ls To display if the hardware is 32-bit or 64-bit, type: bootinfo -y How to change AIX OS from 32 bit kernel to 64 Bit kernel ln -sf /usr/lib/boot/unix_64 /unix ln -sf /usr/lib/boot/unix_64 /usr/lib/boot/unix bosboot -ad /dev/ipldevice shutdown -r How to know if the kernel is 32-bit enabled or 64-bit enabled ? bootinfo -K How to lock and unlock a user To unlock chuser account_locked=false user or chsec -f /etc/security/user -a account_locked=false -s user To lock chuser account_locked=true user or chsec -f /etc/security/user -a account_locked=true -s user How to define whether the user name should be echoed on a port vi /etc/security/default stanza and change usernameecho = false or chsec -f /etc/security/login.cfg -s default -a usernameecho=false How to change the password prompt for example chsec -f /etc/security/login.cfg -s default -a pwdprompt="Enter your Password now: How to change login prompt from telnet session like it will display the words in quote

chsec -f /etc/security/login.cfg -s default -a herald="Enter your user ID now: How to supressthe login messages touch .hushlogin How to save current network parameter options for next boot /usr/sbin/tunsave -a -F nextboot -t no How to reset a user "asis"s failed login count chsec -f /etc/security/lastlog -a "unsuccessful_login_count=0" -s 'asis' How to restore a file from a savevg backup /usr/bin/restorevgfiles -s -r -f'/dev/rmt0' -b'4096' -a'' /etc/passwd How to preview information about a savevg backup with block size 4MB listvgbackup -l -f'/dev/rmt0' -b'4096' -a'' What is the command to create VG on VPATH device mkvg4vp What is the command to add a Datapath PV to a vg extendvg4vp How to identify a PCI Slot at U1.5-P2-I8 drslot -c pci -i -s 'U1.5-P2-I8' How to display all graphics adapters in a machine lsdisp How to display all Read Write Optical Device List ( Optical Jukebox) lsdev -Cc rwoptical How to add path to available Data Path Devices /usr/sbin/addpaths How to define and configure all Data path Devices /usr/lib/methods/cfcallvpath How to display all the vpath devices lsdev -Cc disk -s dpo -t vpath How to display Data Path Device Configuration lsvpcfg How to configure a defined tty mkdev -l tty0 How to display the PMTU table pmtu display or netstat -in How to display all locked users (including system users) usrck -l ALL (lowercase L) How to generate hardware and software inventory of a server /usr/sbin/geninv -c

or /usr/sbin/geninv -l How to display and change setting of the core files lscore - to diplay settings chcore - to change settings How to search for and correct physical partitions that are stale or unable to perform I/O operations on rootvg. ( Look manual for more options for this command) mirscan -v rootvg How to determine the status of your system battery diag -B -c How to run diggonostics on all SCSI devices without user action diag -S 5 -c How to determine if the 64-bit kernel extension is loaded ? genkex |grep 64 Restore a Backup by Name To restore a remote backup archive by name, use the following command: rsh remotehost "dd if=/dev/rmt0 bs=blocksize" | restore -xvqdf- pathname Restore a Backup by inode To restore a remote backup archive by inode, use the following command: rsh remotehost "dd if=/dev/rmt0 bs=blocksize" | restore -xvqf- pathname Restore a Remote cpio Archive To restore a remote archive created with the cpio command, use the following command: rsh remotehost "dd if=/dev/rmt0 ibs=blocksize obs=5120" | cpio -icvdumB Restore a tar Archive To restore a remote tar archive, use the following command: rsh remotehost "dd if=/dev/rmt0 bs=blocksize" | tar -xvpf- pathname Restore a Remote Dump To restore a remote dump of the /myfs file system, use the following command: cd /myfs rrestore -rvf remotehost:/dev/rmt0 Backup by Name To remotely create a backup archive by name, use the following command: find pathname -print | backup -ivqf- | rsh remotehost "dd of=/dev/rmt0 bs=blocksize conv=sync" To remotely create a backup archive by inode, first unmount your file system then use the backup command. For example: umount /myfs backup -0 -uf- /myfs | rsh remotehost "dd of=/dev/rmt0 bs=blocksize conv=sync" To create and copy an archive to the remote tape device, use the following command: find pathname -print | cpio -ovcB | rsh remotehost "dd ibs=5120 obs=blocksize of=/dev/rmt0" Create a tar Archive remotely : tar -cvdf - pathname | rsh remotehost "dd of=/dev/rmt0 bs=blocksize conv=sync" Create a Remote Dump remotely. To create a remote dump of the /myfs file system, use the following command: rdump -u -0 -f remotehost:/dev/rmt0 /myfs

How to compare two directory dircmp /dir1 /dir1 How to identify if a file is sparsely-allocated, for ex. /etc/passwd. fileplace -v /etc/passwd How to displaythe placement of file blocks within logical or physical volumes fileplace -v /usr/bin/ls fileplace -p /usr/bin/ls ( Will display the PV it resides in) How to verify the list of bootable PVs : ipl_varyon -i How to display the filesystems in a volume group lsvgfs rootvg How to display the jfs/jfs2 file systems, run lsjfs or lsjfs2 How to clean up a failed software installation installp -C How to unlock a rootvg putlvodm -K `getlvodm -v rootvg` How to run 64BIT application on 32 bit kernel Smitty -> System Environments ->Enable 64bit Application environment or /etc/methods/cfg64 and run the following command mkitab "load64bit:2:wait:/etc/methods/cfg64 >/dev/console 2>&1 # Enable 64-bit execs" How make AIX replying to broadcast ping run this command no -o bcastping=1 How to out the Status of VGDA of rootvg and hdisk0 lqueryvg -g `getlvodm -v rootvg` -At -p hdisk0 How to change a users attribute like pasword length chsec -f /etc/security/user -s sid -a minlen=8 or chuser minlen=8 sid How to determine the tape block size Use the dd command to read a single block from the device and find out what block size is used for the archive: dd if=/dev/rmt0 bs=128k count=1 | wc -c This will return to you the size in bytes of the block being read. Assuming that your backup was made with the same physical block size, you can change your device to use this block size. or Use the tcopy command as follows to find out the block size: # tcopy /dev/rmt0

tcopy : Tape File: 1; Records: 1 to 7179 ; size:512 tcopy : Tape File: 1; End of file after :7179 records; 3675648 bytes How to mirror a terminal portmir -t pts/0 ( To start) portmir -o (To stop) How to restart inetd refresh -s inetd How to identifying the current run level at the command line: # cat /etc/.init.state 2 or who -r How to displays the names of the files added to the system during installation of the specified fileset. for Ex. openssh lslpp -f openssh.base.server How to list all the softwares in a cdrom ( To display directory use the path) installp -L -d /dev/cd0 How to resize the VG size after increasing the lun sizes on Fast-T chvg -g vgname How to check the LVCB data getlvcb -AT How to find the latest service pack inside a SPOT nim -o fix_query 530TL8spot |grep SP How to configure STK L700 Library with AIX for Veritas Netbackup 6.x You need to know two things first 1. Which fcs card you zoned the Fiber Robotic device For Example fcs0 or fcs1 2. FCID of the robot. Which you will find from the Fiber switch in the Zone. Or run fcsstat. it will look like 0x242DB1 Now you need to run 1) /usr/openv/volmgr/bin/driver/install_ovpass 2) mkdev -c media_changer -t ovpass -s fcp -p fscsi0 -w 0x0242DB1,0 (fcsi0 if connected to fcs0, fscsi1 if fcs1 , FCID from Fiber Switch, add ,0 after that) 3)/usr/openv/volmgr/bin/scsi_command -d /dev/ovpass0 -inquiry (will show the robot) 4)/usr/openv/volmgr/scan will give you details of the robot if added correctly Then run the netbackup Admin GUI /usr/openv/netbackup/bin/jnbSA& And discover everything from the main menu wizard. Don't go to device robot. Most of the types veritas discover devices including robots correctly How to find the devices in pre defined subclass lsdev -P -H then run lsdev -Cc disk -Fname -sscsi - for scsi disks lsdev -Cc cdrom -Fname -sscsi - for scsi cdrom lsdev -Cc disk -Fname -sfcp - for fiber disks lsdev -Cc tape -Fname -sfcp - for fiber tapes

How to find the system id number of AIX Server lsattr -El sys0 -a systemid or uname -u How to check and repair two file systems simultaneously on different drives (from dfsck man page from AIX Server) dfsck -p /dev/hd1 - -p /dev/hd7 How to fix SAN disks issue after rerecovering mksysb to different hardware connected to different SAN disks. Sceanario : In a recent disaster recovery scenario I had to recover two lpar to different hardware. mksysb created on two lpars connected to EMC Server and I was recovering to two different hardware connected to IBM Shark. Both have AIX 5.3 TL10. After recovering I figured out that one lpar can see the Shark SAN disks but showing as defined. And the other lpar no SAN disks are showing. Solution I used : First I ran lslpp -l |egrep 'emc|ibm2105|sdd' and found that mksysb has Clarion drivers/powerpath/ibm2105 etc. As we are not using Clarion or EMC disks I am free to remove those packages. So I ran installp -u EMC* and removes all the EMC softwares. Then I unstalled IBM2105 packages same way. The 2nd lpar now automatically showing the Shark disks but they are showing as defined. Now I ran rmdev -rdl fscsi0 and rmdev -rdl fscsi1 ( as SAN disks are connected to fcs0 & fcs1) After that I ran cfgmgr -vl fcs0 & cfgmgr -vl fcs1 and all the disks came as MPIO device and as available. Now if I want vpath software then I would download latest sdd drivers and ibm2105.rte from ibm website and install them.