Pumpkin

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Revision as of 16:11, 28 December 2007 by Minuti (talk | contribs) (→‎Basic Setup)
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Pumpkin

Pumpkin is our new 8 CPU 24 disk monster machine. It is really, really nice. Currently it is only tied to the "corn" ip address.

Basic Setup

  • We will run Xen on this so that it can have 2 personalies: Pumpkin, 64-bit, and Corn, 32-bit, RHEL5.
    • In order to do this right, Pumpkin should be the host, since you can't virtualize 64-bit under 32-bit, but you can do the other way around. See the bottom of http://www.redhat.com/rhel/virtualization/. Currently, all boot options in GRUB are 32-bit, and the default choice (RAID) panics during boot.
  • The RAID is currently split. This allows for much easier maintenance and in the future possible upgrades.
    • Disk 1 to 11 is in RAID Set 0, which holds the RAID Volumes: System (300GB, RAID6, SCSI:0.0.0), System1(300GB, RAID6, SCSI:0.0.1), Data1 (6833GB, RAID5, SCSI:0.0.2)
    • Disk 11 to 22 is RAID Set 1, which holds the RAID Volume: Data2 (7499GB, RAID5, SCSI:0.0.3)
    • Disk 23 and 24 are passthrough (single disks) at SCSI:0.0.6 and SCSI:0.0.7. These can be used as spares, as backup, or to expand the other RAID sets later on.
    • The RAID card can be monitored at http://10.0.0.99/ login as "admin" with a password that is the same as the door combo.
    • To use this card with Linux you need a driver: arcmsr. This must be part of the initrd for the kernel, else you cannot boot from the RAID.
      • The kernel module can be build from the sources located in /usr/src/kernels/Acera_RAID. Just run make.
  • Currently we have a temporary drive in the system on the onboard SATA which holds a RHEL5 distro and the original RHEL4 distro from the manufacturer.

To Do

  • Move the system to System drive and remove the current temp drive.
  • Setup mount points for the data drives.
  • Setup LDAP for users to log in. I started, but it's not working.
  • Setup Exports, so other systems can see the drives.
  • Setup autofs so that it can see other drives.
  • Setup sensors so that we can monitor the system.
  • Setup smartd so we will know when a disk is going bad. This can be done inside the RAID card using a system to send SNMP and EMAIL. but it needs to be done.
  • Setup the other system with Xen on the System1 drive
  • Setup SNMP for cacti monitoring.
  • There must be other things....

Done

  • Setup ethernet.
  • Setup RAID volumes.
  • Setup partitions and create file systems.
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