CentOS5 (RHEL5) + 9TB Drive + AD + Win/OSX clients + BackupEXEC

I have setup a CentOS5 file server for a client.

Here is a log of what I did to get it working:

• CentOS5 install following - http://www.howtoforge.com/perfect_setup_centos5.0
  
  • Selecting to install the following packages - Select Editors, Text-based Internet, Development Libraries, Development Tools, Mail Server, Server Configuration Tools, Administration Tools, Base, and System Tools
• Don't bother installing CentOS onto a server that has that onboard SATA raid controllers! I had a dead drive in testing, and the server didn't just keep going on the redundant mirrored drive... :(
• Webmin
  • http://www.hornfordassociates.com/resources/how-to-library/virtual-centos-5.html
  • change port to 10001 because BackupExec agent also uses port 10000
  • Also used their instructions for cleaning up the basic CentOS install (sans gui)
    
    • yum remove finger gaim cups-libs bluez-libs desktop-file-utils
    • yum remove Deployment_Guide-en-US<
    • yum install postfix
    • yum remove sendmail
• RPM Forge
  • http://wiki.centos.org/Repositories/RPMForge
• Samba
  
  • http://www.brentnorris.net/blog/?p=179
  • http://www.howtoforge.com/samba_ads_security_mode
  • yum install samba
  • /etc/hosts - have the fqdn for the server and all DCs
• fstab
• krb5.conf
• nsf: - /etc/exports
  
  • I setup NFS using these instructions: http://www.jontodd.com/2006/07/24/setting-up-nfs-server-on-fedora-core-5-with-os-x-nfs-client/
  • And when I dug into the site, I may have found a solution to the file transfer speed: http://www.bresink.de/osx/143439/issues.html
    • I made the changes as suggested to /etc/exports
    • /mnt/raid03 192.168.23.0/255.255.255.0(rw,insecure,async)
    • Automounting from another server was a prob, this was the solution: http://crazytoon.com/2007/05/11/centos-and-redhat-problem-nfs-mount-at-boot-up-fails-with-error-system-error-no-route-to-host/
      

formatting the 9TB --F switch

• As for formatting the data store raid, I found out I needed to use a -F switch to force/push it over 8TB.
  Also use -m 0 so that it only uses 0% reserved for root
  Also -T largefile4

• [root@server03 ~]# mke2fs -j -b 4096 /dev/sdc
  mke2fs 1.39 (29-May-2006)
  /dev/sdc is entire device, not just one partition!
  Proceed anyway? (y,n) y
  mke2fs: Filesystem too large. No more than 2**31-1 blocks
  (8TB using a blocksize of 4k) are currently supported.
  

  [root@server03 ~]# mke2fs -j -F -b 4096 /dev/sdc
  mke2fs 1.39 (29-May-2006)
  Filesystem label=
  OS type: Linux
  Block size=4096 (log=2)
  Fragment size=4096 (log=2)
  1188610048 inodes, 2377197056 blocks
  118859852 blocks (5.00%) reserved for the super user
  First data block=0
  Maximum filesystem blocks=4294967296
  72547 block groups
  32768 blocks per group, 32768 fragments per group
  16384 inodes per group
  Superblock backups stored on blocks:
  32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
  4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
  102400000, 214990848, 512000000, 550731776, 644972544, 1934917632

  Writing inode tables: done
  Creating journal (32768 blocks): done
  Writing superblocks and filesystem accounting information: done
  

  So now...

  [root@server03 ~]# df -h
  Filesystem Size Used Avail Use% Mounted on
  /dev/md1 287G 2.4G 270G 1% /
  /dev/md0 99M 15M 79M 16% /boot
  tmpfs 2.0G 0 2.0G 0% /dev/shm
  /dev/sdc 8.8T 170M 8.3T 1% /raid03
  [root@server03 ~]# df
  Filesystem 1K-blocks Used Available Use% Mounted on
  /dev/md1 300708280 2442184 282744500 1% /
  /dev/md0 101018 15189 80613 16% /boot
  tmpfs 2023964 0 2023964 0% /dev/shm
  /dev/sdc 9359579336 173276 8883966652 1% /raid03
  [root@server03 ~]#

mount the drive - mount -t ext3 /dev/sdb /mnt/sharename

chmod -R 777 /mnt/sharename

start ntpd on startup - add server 0.pool.ntp.org

OSX uid/gid issue

To install the latest version of the BackupExec Agent for linux, I followed this tip: RALUS + RHEL 5 libstdc++so.6

• yum update (to bring your system up to date with RHN.)
• yum search compat-libstdc (this should list the two current versions of the compatible libraries)
• yum install compat-libstdc++-33 (this will install the GCC version)

Nic bonding:

• https://www.openfiler.com/community/forums/viewtopic.php?id=917
• http://linux-net.osdl.org/index.php/Bonding#Configuring_Bonding_for_Maximum_Throughput
• http://linux-net.osdl.org/index.php/Bonding
• http://www.howtoforge.com/network_card_bonding_centos

Configure HP ProCurve for LACP port trunking...

Setup rsync between servers:

• /etc/fstab -> server03:/mnt/raid03 /mnt/raid03 nfs defaults 0 0
• rsync --delete --archive --stats --progress /mnt/raid03/ /mnt/raid04/
• setup cron job
• echo "`date +"%F %R"`: Start backup" >> /root/rsync/log.txt
  rsync --archive --delete --stats --ignore-errors --exclude=**/BNR/build --exclude=**/BNR4/build --exclude=**/.TemporaryItems /mnt/raid03/ /mnt/raid04/ >> /root/rsync/log.txt
  echo "`date +"%F %R"`: Finish backup-jd" >> /root/rsync/log.txt
  cp /root/rsync/log.txt /mnt/raid03/rsynclog/
• This excludes the BNR open files and stops it from crashing