Since I’ve been playing with my AutoYAST setup for the last few days, working out the kinks (for example SLES10 not being able to install into the MBR), I needed a way to zap the MBR (as in remove grub to see whether or not the installation would install a new loader). So after quickly googling, I found this: 1 dd if=/dev/zero of=/dev/hda bs=512 count=1 That actually does the trick. The loader as well as the partition table are gone after wards!
As I mentioned before, we’re starting to utilize Boot-from-SAN as a means to strip the blades of their local disk. As the title says, after trying a manual installation of SLES 11.1 via CD/HTTP I wanted to automate the process, in order to get a reproducible, consistent installation method. As you might have figured, AutoYaST doesn’t have any built in support for configuring multipathing (hey, that’s what Novell says here). Now, they also provide a comprehensive how-to on how to “add” this to your AutoYaST, using a DUD (or D river U pdate D isk). ...
Well as the title says, sadly we bought our FAS6210 without CIFS/NFS license. Thus, in order to create the folder structure/add the authorized_keys file, you’ll have to work for your money a little bit. First, you need to run cifs setup / cifs passwd somewhere. I did it on our Data ONTAP simulator, which comes in handy for things like that. You’ll get a cryptic looking password (no clue which format that is), looking like this: _OnWddr)xa. ...
As I wrote a few days ago, I started a new job. One of my first (voluntary) tasks was writing a shell script which would copy a VDisk Host-Mapping from a given host to another. This is useful, if you do have a lot of ESX servers for example and a few roaming ones. Now, if say, you need to do some ESX-Updates and you would like to add the roaming one to a given farm, you would be in a dark an deary place. You would be required to either click through the GUI a dozen times (in my case, it might have needed ~200 clicks) or type svcinfo lshostvdiskmap and svctask mkhostvdiskmap -force (these are incomplete command references) a few times. ...
Well, today I had another idea (basically like the one I wrote for SVC’s VDisk mappings a while back) for a script: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 #!/bin/bash KEY_FILE="/root/.ssh/netapp.dsa" SSH_OPTS="/root/.ssh/netapp-ssh_config" if [ $# -ne 3 ] ; then echo "fas-copy-lunmap: FAS_CONTROLLER SOURCE_IGROUP TARGET_IGROUP" echo echo "Copy the LUN map from one igroup to another, ie for ESX reinstallation" echo echo " Usage:" echo " - FAS_CONTROLLER: Hostname/IP-adress of the DATA ONTAP controller" echo " - SOURCE_IGROUP: igroup that is used as a reference for the copy process" echo " - TARGET_IGROUP: igroup that is actually modified" echo exit 1 fi FAS_CTRL=$1 SOURCE=$2 TARGET=$3 ssh_fas() { # $@: commands for Data ONTAP COMMANDS="$@" /usr/bin/ssh -i $KEY_FILE -l root -F $SSH_OPTS $COMMANDS } #set -x # Get the lun list. for lun in $( ssh_fas $FAS_CTRL lun show -g $SOURCE | awk '{ print $1 }' | sort -u ); do # Get the LUN number its mapped LUN_ID="$( ssh_fas $FAS_CTRL lun show -m $lun | grep "^/vol" | awk '{ print $3 }' )" # If the LUN id is 0, skip otherwise we would copy the boot LUN if [ "$LUN_ID" != "0" ] ; then # Actually map the lun to our host echo "Mapping $lun to $TARGET as LUN_ID $LUN_ID" ssh_fas $FAS_CTRL lun map $lun $TARGET $LUN_ID fi done #set +x I’ll post the counterpart of the script (to remove the LUNs) in a second post later on.
Well, here’s the promised script to regenerate the main PXE menu based on the menu entries created by register-suse and register-vmware. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 #!/bin/bash TFTP_DIR=/srv/tftpboot/pxelinux.cfg mkdir -p $TFTP_DIR &>/dev/null # Iterate through the pxelinux.cfg directory and recreate the index menues. for dir in $( find $TFTP_DIR -mindepth 1 -maxdepth 1 -type d ); do echo "Generating summary menu for: $dir" count=1 cat > $dir.menu << EOF MENU TITLE Linux Installationservices MENU BACKGROUND addons/background.png MENU COLOR screen 37;40 #80ffffff #00000000 MENU COLOR border 0 #ffffffff #ee000000 std MENU COLOR title 0 #ffffffff #ee000000 std MENU COLOR unsel 0 #ffffffff #ee000000 std MENU COLOR sel 0 #ffffffff #85000000 std MENU COLOR scrollbar 30;44 #40000000 #00000000 MENU COLOR tabmsg 0 #ee000000 #ffffffff std MENU COLOR cmdmark 0 #ff00ff00 #00000000 std MENU COLOR cmdline 0 #ee000000 #ffffffff std MENU COLOR timeout_msg 0 #ee000000 #ffffffff std MENU COLOR timeout 0 #ee000000 #ffffffff std MENU COLOR disabled 0 #ffffffff #ee000000 std MENU COLOR pwdheader 0 #ff000000 #99ffffff rev MENU COLOR pwdborder 0 #ff000000 #99ffffff rev MENU COLOR pwdentry 0 #ff000000 #99ffffff rev MENU COLOR hotkey 0 #ff00ff00 #ee000000 std MENU COLOR hotsel 0 #ffffffff #85000000 std EOF for file in $( find $dir -mindepth 1 -name "*.menu" | sort -r ); do FILE_LABEL="$( grep ^#LABEL $file | cut -d -f2- )" FILE_OSARCH="$( grep ^#OSARCH $file | cut -d -f2- )" cat >> $dir.menu << EOF LABEL $count MENU LABEL $FILE_LABEL ($FILE_OSARCH) KERNEL addons/vesamenu.c32 APPEND pxelinux.cfg/${dir##*/}/${file##*/} EOF count=$(( $count + 1 )) done done 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 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-rw-r--r-- 1 root root 24K Dec 28 2009 background-suse.png -rw-r--r-- 1 root root 20K Dec 28 2009 background-vmware.png -rw-r--r-- 1 root root 48K Oct 7 2009 mboot.c32 -rw-r--r-- 1 root root 142K Oct 7 2009 vesamenu.c32 /srv/tftpboot/boot: total 20K drwxr-xr-x 3 root root 4.0K Jun 24 2011 esx/ drwxr-xr-x 2 root root 4.0K Oct 14 2009 firmware/ drwxr-xr-x 5 root root 4.0K Dec 14 2011 opensuse/ drwxr-xr-x 10 root root 4.0K Mar 9 17:28 sles/ drwxr-xr-x 3 root root 4.0K Oct 7 2009 tests/ /srv/tftpboot/boot/esx: total 4.0K drwxr-xr-x 2 root root 4.0K Jun 24 2011 4.1-348481/ /srv/tftpboot/boot/esx/4.1-348481: total 81M -r--r--r-- 1 root root 79M Jun 24 2011 initrd.img -r--r--r-- 1 root root 1.5M Jun 24 2011 vmlinuz /srv/tftpboot/boot/firmware: total 4.3M -rw-r--r-- 1 root root 1.5M Oct 14 2009 fdboot.img -rw-r--r-- 1 root root 20K Oct 14 2009 memdisk -rw-r--r-- 1 root root 1.5M Oct 14 2009 qmh2462_1.76.img -rw-r--r-- 1 root root 1.5M Oct 14 2009 qmh2462_1.81.img /srv/tftpboot/boot/opensuse: total 12K drwxr-xr-x 4 root root 4.0K Jun 20 2011 11.3/ drwxr-xr-x 4 root root 4.0K Jun 20 2011 11.4/ drwxr-xr-x 4 root root 4.0K Dec 14 2011 12.1/ /srv/tftpboot/boot/opensuse/11.3: total 8.0K drwxr-xr-x 2 root root 4.0K Jun 20 2011 x64/ drwxr-xr-x 2 root root 4.0K Jun 20 2011 x86/ /srv/tftpboot/boot/opensuse/11.3/x64: total 32M -r--r--r-- 1 root root 28M Jun 20 2011 initrd -r--r--r-- 1 root root 3.8M Jun 20 2011 linux /srv/tftpboot/boot/opensuse/11.3/x86: total 32M -r--r--r-- 1 root root 28M Jun 20 2011 initrd -r--r--r-- 1 root root 3.7M Jun 20 2011 linux /srv/tftpboot/boot/opensuse/11.4: total 8.0K drwxr-xr-x 2 root root 4.0K Jun 20 2011 x64/ drwxr-xr-x 2 root root 4.0K Jun 20 2011 x86/ /srv/tftpboot/boot/opensuse/11.4/x64: total 37M -r--r--r-- 1 root root 33M Jun 20 2011 initrd -r--r--r-- 1 root root 4.1M Jun 20 2011 linux /srv/tftpboot/boot/opensuse/11.4/x86: total 37M -r--r--r-- 1 root root 33M Jun 20 2011 initrd -r--r--r-- 1 root root 3.9M Jun 20 2011 linux /srv/tftpboot/boot/opensuse/12.1: total 8.0K drwxr-xr-x 2 root root 4.0K Dec 14 2011 x64/ drwxr-xr-x 2 root root 4.0K Dec 14 2011 x86/ /srv/tftpboot/boot/opensuse/12.1/x64: total 43M -r--r--r-- 1 root root 39M Dec 14 2011 initrd -r--r--r-- 1 root root 4.5M Dec 14 2011 linux /srv/tftpboot/boot/opensuse/12.1/x86: total 43M -r--r--r-- 1 root root 38M Dec 14 2011 initrd -r--r--r-- 1 root root 4.4M Dec 14 2011 linux /srv/tftpboot/boot/sles: total 32K drwxr-xr-x 4 root root 4.0K Jun 24 2011 10.2/ drwxr-xr-x 4 root root 4.0K Sep 28 2011 10.3/ drwxr-xr-x 4 root root 4.0K Jun 17 2011 10.4/ drwxr-xr-x 4 root root 4.0K Jun 17 2011 11/ drwxr-xr-x 4 root root 4.0K Jun 17 2011 11.1/ drwxr-xr-x 4 root root 4.0K Jun 17 2011 11.1-vmware/ drwxr-xr-x 3 root root 4.0K Mar 9 17:28 11.2/ drwxr-xr-x 4 root root 4.0K Jul 24 17:04 11.2-vmware/ /srv/tftpboot/boot/sles/10.2: total 8.0K drwxr-xr-x 2 root root 4.0K Jun 24 2011 x64/ drwxr-xr-x 2 root root 4.0K Jun 24 2011 x86/ /srv/tftpboot/boot/sles/10.2/x64: total 11M -r--r--r-- 1 root root 9.0M Jun 24 2011 initrd -r--r--r-- 1 root root 1.4M Jun 24 2011 linux /srv/tftpboot/boot/sles/10.2/x86: total 11M -r--r--r-- 1 root root 8.9M Jun 24 2011 initrd -r--r--r-- 1 root root 1.3M Jun 24 2011 linux /srv/tftpboot/boot/sles/10.3: total 8.0K drwxr-xr-x 2 root root 4.0K Sep 28 2011 x64/ drwxr-xr-x 2 root root 4.0K Sep 28 2011 x86/ /srv/tftpboot/boot/sles/10.3/x64: total 12M -r--r--r-- 1 root root 11M Sep 28 2011 initrd -r--r--r-- 1 root root 1.4M Sep 28 2011 linux /srv/tftpboot/boot/sles/10.3/x86: total 12M -r--r--r-- 1 root root 11M Sep 28 2011 initrd -r--r--r-- 1 root root 1.3M Sep 28 2011 linux /srv/tftpboot/boot/sles/10.4: total 8.0K drwxr-xr-x 2 root root 4.0K Jun 17 2011 x64/ drwxr-xr-x 2 root root 4.0K Jun 17 2011 x86/ /srv/tftpboot/boot/sles/10.4/x64: total 13M -r--r--r-- 1 root root 12M Jun 17 2011 initrd -r--r--r-- 1 root root 1.4M Jun 17 2011 linux /srv/tftpboot/boot/sles/10.4/x86: total 13M -r--r--r-- 1 root root 12M Jun 17 2011 initrd -r--r--r-- 1 root root 1.3M Jun 17 2011 linux /srv/tftpboot/boot/sles/11: total 8.0K drwxr-xr-x 2 root root 4.0K Jun 17 2011 x64/ drwxr-xr-x 2 root root 4.0K Jun 17 2011 x86/ /srv/tftpboot/boot/sles/11/x64: total 24M -r--r--r-- 1 root root 21M Jun 17 2011 initrd -r--r--r-- 1 root root 2.5M Jun 17 2011 linux /srv/tftpboot/boot/sles/11/x86: total 23M -r--r--r-- 1 root root 21M Jun 17 2011 initrd -r--r--r-- 1 root root 2.4M Jun 17 2011 linux /srv/tftpboot/boot/sles/11.1: total 8.0K drwxr-xr-x 2 root root 4.0K Jun 17 2011 x64/ drwxr-xr-x 2 root root 4.0K Jun 17 2011 x86/ /srv/tftpboot/boot/sles/11.1/x64: total 27M -r--r--r-- 1 root root 23M Jun 17 2011 initrd -r--r--r-- 1 root root 3.1M Jun 17 2011 linux /srv/tftpboot/boot/sles/11.1/x86: total 26M -r--r--r-- 1 root root 23M Jun 17 2011 initrd -r--r--r-- 1 root root 3.1M Jun 17 2011 linux /srv/tftpboot/boot/sles/11.1-vmware: total 8.0K drwxr-xr-x 2 root root 4.0K Jun 17 2011 x64/ drwxr-xr-x 2 root root 4.0K Jun 17 2011 x86/ /srv/tftpboot/boot/sles/11.1-vmware/x64: total 27M -r--r--r-- 1 root root 23M Jun 17 2011 initrd -r--r--r-- 1 root root 3.1M Jun 17 2011 linux /srv/tftpboot/boot/sles/11.1-vmware/x86: total 26M -r--r--r-- 1 root root 23M Jun 17 2011 initrd -r--r--r-- 1 root root 3.1M Jun 17 2011 linux /srv/tftpboot/boot/sles/11.2: total 4.0k drwxr-xr-x 2 root root 4.0K Mar 9 17:29 x64/ /srv/tftpboot/boot/sles/11.2/x64: total 36M -r--r--r-- 1 root root 33M Mar 9 17:29 initrd -r--r--r-- 1 root root 3.7M Mar 9 17:29 linux /srv/tftpboot/boot/sles/11.2-vmware: total 8.0K drwxr-xr-x 2 root root 4.0K Mar 9 16:52 x64/ drwxr-xr-x 2 root root 4.0K Jul 24 17:05 x86/ /srv/tftpboot/boot/sles/11.2-vmware/x64: total 36M -r--r--r-- 1 root root 33M Jul 20 12:46 initrd -r--r--r-- 1 root root 3.7M Jul 20 12:46 linux /srv/tftpboot/boot/sles/11.2-vmware/x86: total 35M -r--r--r-- 1 root root 32M Jul 24 17:17 initrd -r--r--r-- 1 root root 3.6M Jul 24 17:17 linux /srv/tftpboot/boot/tests: total 4.0K drwxr-xr-x 2 root root 4.0K Oct 7 2009 memtest/ /srv/tftpboot/boot/tests/memtest: total 164K -rw-r--r-- 1 root root 157K Oct 7 2009 memtest86+-4.00 /srv/tftpboot/pxelinux.cfg: total 48K -rw-r--r-- 1 root root 2.0K Jun 20 2011 default drwxr-xr-x 2 root root 4.0K Jun 24 2011 esx/ -rw-r--r-- 1 root root 1.3K Jul 24 17:18 esx.menu drwxr-xr-x 2 root root 4.0K Jun 20 2011 esxi/ -rw-r--r-- 1 root root 1.1K Jul 24 17:18 esxi.menu -rw-r--r-- 1 root root 423 Oct 20 2009 firmware.menu drwxr-xr-x 2 root root 4.0K Dec 14 2011 opensuse/ -rw-r--r-- 1 root root 1.8K Jul 24 17:18 opensuse.menu -rw-r--r-- 1 root root 2.6K Jun 4 2010 rescue.menu drwxr-xr-x 2 root root 4.0K Jul 24 17:05 sles/ -rw-r--r-- 1 root root 2.7K Jul 24 17:18 sles.menu -rw-r--r-- 1 root root 329 Oct 20 2009 tests.menu /srv/tftpboot/pxelinux.cfg/esx: total 8.0K -rw-r--r-- 1 root root 1.9K Jun 24 2011 esx-4.1-260247.menu -rw-r--r-- 1 root root 1.9K Jun 24 2011 esx-4.1-348481.menu /srv/tftpboot/pxelinux.cfg/esxi: total 4.0K -rw-r--r-- 1 root root 1.7K Jun 20 2011 esxi41.menu /srv/tftpboot/pxelinux.cfg/opensuse: total 24K -rw-r--r-- 1 root root 1.8K Jun 20 2011 opensuse-11.3-x64.menu -rw-r--r-- 1 root root 1.8K Jun 20 2011 opensuse-11.3-x86.menu -rw-r--r-- 1 root root 1.8K Jun 20 2011 opensuse-11.4-x64.menu -rw-r--r-- 1 root root 1.8K Jun 20 2011 opensuse-11.4-x86.menu -rw-r--r-- 1 root root 1.8K Dec 14 2011 opensuse-12.1-x64.menu -rw-r--r-- 1 root root 1.8K Dec 14 2011 opensuse-12.1-x86.menu /srv/tftpboot/pxelinux.cfg/sles: total 60K -rw-r--r-- 1 root root 1.8K Jul 24 16:58 sles-10.2-x64.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:57 sles-10.2-x86.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:57 sles-10.3-x64.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:57 sles-10.3-x86.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:57 sles-10.4-x64.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:57 sles-10.4-x86.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:58 sles-11-x64.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:58 sles-11-x86.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:59 sles-11.1-vmware-x64.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:59 sles-11.1-vmware-x86.menu -rw-r--r-- 1 root root 1.8K Jul 24 16:59 sles-11.1-x64.menu -rw-r--r-- 1 root root 1.8K Jul 24 17:00 sles-11.1-x86.menu -rw-r--r-- 1 root root 1.8K Jul 24 17:00 sles-11.2-vmware-x64.menu -rw-r--r-- 1 root root 1.8K Jul 24 17:17 sles-11.2-vmware-x86.menu -rw-r--r-- 1 root root 1.8K Jul 24 17:00 sles-11.2-x64.menu
As I wrote before, we’re using SnapManager (for SQL/Oracle) to create consistent snapshots. However my database guys don’t want to name their snapshots daily. (which I can understand), as once you archive those snapshots to a secondary (and tertiary) system, the names become junk. So, they’re naming the snapshots like snap__vcsrv_29_12_2012-10.00.01. Sadly, when it comes to SnapVault, it expects the names in form of daily. otherwise you won’t be able to transfer the snapshots with the CLI (none that I have found anyway). But we didn’t want to move away from naming the snapshots the way they are, so I ended up writing a PowerShell script, that once triggered archives the Snapshots needed for a set of databases. It took me a while to figure a bunch of stuff out, but in the end I think I have a working way of archiving custom-named snapshots.
Well, I recently had the pleasant task of implementing SnapVault backups, that are being shipped to an offsite location with SnapMirror. That in itself isn’t the bad thing, however we decided against Protection Manager (since it was a charged product back when we decided on this). So I basically had the three tasks: Actually implement the SnapVault stuff (and learn my way around it and also document it) Write a bunch of scripts, that help us in creating scheduled backups of our databases Create a monitoring script, that’ll fit into our Nagios environment already in place Well, two months later (sadly it still has some kinks - I can’t figure out this one bug though for the life of it) and a few hundred hours of working on/with it and out came four things: ...
I’ve been spending a lot of my time the last week on getting SnapVault with out FAS-filers to work. Out came a script, which does this for a given volume (and of course SnapVault Primary and Secondary). The script expects, that SSH public key authentification has been set up.
Since I’m living and working in Germany, most of my hardware is using timezone configuration for CEST (or Europe/Berlin). This here is the simple configuration for our Nexus 5000’s: 1 2 3 4 5 conf t clock timezone CET 1 0 clock summer-time CEST 5 Sun Mar 02:00 5 Sun Oct 03:00 60 exit copy running-config startup-config