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| − | This site is currently being updated.
| + | #REDIRECT [[Tomato]] |
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| − | == General Information ==
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| − | Einstein is the primary server, and hosts services for [[LDAP]], NFS for [[Automount|home directories]], [[E-mail]], [[Elog]].
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| − | == Hardware Information ==
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| − | [[Image:H8SMU_spec.jpg |right| SuperMicro H8SMU Motherboard ]]
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| − | * Motherboard: [http://www.supermicro.com/Aplus/motherboard/Opteron1000/MCP55/H8SMU.cfm SuperMicro H8SMU] [http://nuclear.unh.edu/wiki/images/7/72/MNL-H8SMU_10a.pdf User Manual]
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| − | ** nVidia MCP55-Pro chipset
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| − | ** SAS Backplane: SAS825TQ
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| − | * Marvell Technology Group Ltd. MV88SX6081 8-port SATA II PCI-X
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| − | == Network Configuration ==
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| − | Currently has ethernet cable to switch for local (farm) connection, and an ethernet cable to the wall for unh connection.
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| − | <pre>
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| − | eth0
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| − | Hostname: einstein.farm.physics.unh.edu
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| − | HWaddr 00:30:48:63:BB:40
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| − | IP:10.0.0.248
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| − | eth1
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| − | Hostname: einstein.unh.edu
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| − | HWaddr 00:30:48:63:BB:41
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| − | IP:132.177.88.52
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| − | </pre>
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| − | | |
| − | == UPS Configuration ==
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| − | Einstein is connected to the APC SmartUPS 2200XL.
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| − | First install the apcupsd package using yum. Then start it the package and check the status
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| − | sudo yum install apcupsd
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| − | sudo /sbin/service apcupsd start
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| − | sudo /sbin/service apcupsd status
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| − | The official Site and Manual
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| − | [http://apcupsd.org/ Official Site]
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| − | [http://nuclear.unh.edu/wiki/images/7/72/apcupsd-manual.pdf User Manual]
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| − | == Hot Swap Information ==
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| − | * Interesting thread to get sata-nv to hotswap: ([http://www.linuxquestions.org/questions/linux-hardware-18/sata-hotplug-hotswap-howto-570811])
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| − | ** There are drivers available for the MB sata, we could try them: [ftp://ftp.supermicro.com/driver/SATA/nVidia/MCP55/Linux/Non_RAID/Redhat/1.23/ Super Micro MB H8SMU drivers], BUT these appear to be standard Nvidia sata_nv driver.
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| − | * SAS Backplane: SAS825TQ
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| − | * SAT2-MV8 8-port SATA controller. Uses the sata-mv module which is NOT HOTPLUG CAPABLE. (see http://linux-ata.org/driver-status.html#matrix). THE ONLY WAY TO "HOT PLUG" with this driver is to dismount ALL the drives, then "modprobe -r sata-mv" (make sure it is really gone: lsmod | grep sata) then do the swap, then "modeprobe sata-mv" again.
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| − | | |
| − | == Special Considerations for Einstein (Historical) ==
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| − | This information no longer applies and is here for historical reasons. We no longer use amavisd, and so these instructions are not useful.
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| − | Einstein is our mail server. That means it runs '''"amavisd"''' (a virus scanner) and '''"spamassasin"''' a spam filter. Both these codes have some issues with leaving junk around, slowly causing the "/" file system to fill up. When that happens, einstein stops functioning.
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| − | Some cleanup can be done as follows:
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| − | * stop amavisd and spamassasin:
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| − | service amavisd stop
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| − | service spamassasin stop
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| − | * clean out some of their junk:
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| − | rm /var/amavis/.razor/razor-agent.log
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| − | touch /var/amavis/.razor/razor-agent.log
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| − | chown amavis:amavis /var/amavis/.razor/razor-agent.log
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| − | chmod o-r /var/amavis/.razor/razor-agent.log
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| − | rm -f /var/virusmails/* # (Sometimes there are so many, you have to delete in "chunks")
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| − | rm -rf /tmp
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| − | * start up the mail stuff again.
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| − | service amavisd start
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| − | service spamassasin start
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| − | There may be other areas that can be clean up, as in all the archived mail from "mailman"? But at least this list will let einstein function again.
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