Difference between revisions of "Lentil"
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== General Information == | == General Information == | ||
| − | Lentil performs [[backups]]. Its backup script needs further investigation to determine exactly how it works. | + | Lentil performs [[backups]]. Its autofs is configured to mount harddrives labeled npg-daily-XX onto /mnt/npg-daily/XX where XX is a label number. Its backup script needs further investigation to determine exactly how it works. |
| + | |||
| + | As of Feb. 15, 2015 Lentil is mounted with the following which will last us awhile: | ||
| + | */dev/sdd1 mounted at /mnt/npg-daily/51; A filled 2TB hard drive | ||
| + | */dev/sda1 mounted at /mnt/npg-daily/52; A 4TB hard drive | ||
| + | */dev/sdc1 mounted at /mnt/npg-daily/53; A 4TB hard drive | ||
| + | */dev/sdb1 as the root file system. Don't hot swap this. | ||
| + | |||
== Hardware Information == | == Hardware Information == | ||
Motherboard: Asus P5QL-CM | Motherboard: Asus P5QL-CM | ||
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User Manual: [http://nuclear.unh.edu/wiki/pdfs/motherboards/E4411_P5QL-CM V2.pdf Users Manual] | User Manual: [http://nuclear.unh.edu/wiki/pdfs/motherboards/E4411_P5QL-CM V2.pdf Users Manual] | ||
Memory: 2 GB DDR2 | Memory: 2 GB DDR2 | ||
| + | |||
| + | |||
| + | == Authentication == | ||
| + | Lentil authenticates against the LDAP server running on Einstein, by connecting to einstein.farm.physucs.unh.edu using sssd. | ||
| + | Previously, Lentil went on the UNH network to einstein.unh.edu, but this is blocked (I think by ip-tables). The farm network is the better choice anyhow. | ||
== Network Configuration == | == Network Configuration == | ||
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<pre> | <pre> | ||
| − | eth0 | + | eth0 |
| − | Hostname: lentil.farm.physics.unh.edu | + | Hostname: lentil.farm.physics.unh.edu |
| − | HWaddr 00:30:48:63:BB:40 | + | HWaddr 00:30:48:63:BB:40 |
IP:10.0.0.250 | IP:10.0.0.250 | ||
eth1 | eth1 | ||
| Line 29: | Line 41: | ||
===Location of Backups === | ===Location of Backups === | ||
<pre> | <pre> | ||
| − | /mnt/npg-daily/ | + | /mnt/npg-daily-current |
| + | /mnt/npg-daily/xx/ | ||
</pre> | </pre> | ||
All backup related scripts are: | All backup related scripts are: | ||
/etc/auto.npg-daily | /etc/auto.npg-daily | ||
| − | /usr/local/bin/rsync_backup. | + | /usr/local/bin/rsync_backup.py |
/etc/cron.daily/0rsync_backup | /etc/cron.daily/0rsync_backup | ||
/usr/sbin/vgcfgbackup | /usr/sbin/vgcfgbackup | ||
Latest revision as of 15:11, 12 March 2015
General Information
Lentil performs backups. Its autofs is configured to mount harddrives labeled npg-daily-XX onto /mnt/npg-daily/XX where XX is a label number. Its backup script needs further investigation to determine exactly how it works.
As of Feb. 15, 2015 Lentil is mounted with the following which will last us awhile:
- /dev/sdd1 mounted at /mnt/npg-daily/51; A filled 2TB hard drive
- /dev/sda1 mounted at /mnt/npg-daily/52; A 4TB hard drive
- /dev/sdc1 mounted at /mnt/npg-daily/53; A 4TB hard drive
- /dev/sdb1 as the root file system. Don't hot swap this.
Hardware Information
Motherboard: Asus P5QL-CM Specifications: Specifications User Manual: V2.pdf Users Manual Memory: 2 GB DDR2
Authentication
Lentil authenticates against the LDAP server running on Einstein, by connecting to einstein.farm.physucs.unh.edu using sssd. Previously, Lentil went on the UNH network to einstein.unh.edu, but this is blocked (I think by ip-tables). The farm network is the better choice anyhow.
Network Configuration
Currently connected to farm networks via our switch and a direct port to UNH network. Note: Previously, lentil went through the switch and a VLAN network. New network policy at UNH makes this not possible.
eth0 Hostname: lentil.farm.physics.unh.edu HWaddr 00:30:48:63:BB:40 IP:10.0.0.250 eth1 Hostname: lentil.unh.edu HWaddr 00:30:48:63:BB:41 IP:132.177.88.254
Access Configuration
/etc/security/access.conf Any valid user can log into lentil from any machine on the Internet.
Backup Configuration
Location of Backups
/mnt/npg-daily-current /mnt/npg-daily/xx/
All backup related scripts are:
/etc/auto.npg-daily /usr/local/bin/rsync_backup.py /etc/cron.daily/0rsync_backup /usr/sbin/vgcfgbackup /etc/rsync-backup.conf
SNMP Configuration
/etc/snmp/snmpd.conf Copied from Pepper.
Smartd Configuration
The configuration file is at /etc/smartd.conf. The smartd.conf does a silent check, which only emails reports if the SMART health status comes back as failed. This smartd.conf will look different from alot of the other computers because it doesn't have a RAID card installed, so each disk is mounted seperately for backups.
SMARTD Smartd setup and configuration
rc.local Configuration
This script is modified to run commands when the system is done powering on.
This will send the boot.log to npg-admins everytime the pc is started.
mail -s "$HOSTNAME Started, Here is the boot.log" npg-admins@physics.unh.edu < /var/log/boot.log
If Lentil isn't sending e-mails
Sometimes after a reboot Lentil won't send its regular e-mail reports. To fix this you simply need to restart sendmail. Be aware that it has saved all of those messages it didn't send, and once sendmail is working you'll get all of them at once.
Wake On LAN
This is used so we can shutdown the server and remotely turn it back on. Wake On Lan Command:
sudo ether-wake 00:1e:4f:9b:13:90
Fixes
- Kernel Crash Fix (2/24/2009)
- Hard Drive Enclosure Replacement (12/19/2009)
Important Note:
If this appears while booting: request_module: runaway loop modprobe binfmt-464c This is an indication that a drive (in the supermicro hot swap bay) is plugged in that can't be mounted, like a drive with a software raid setup on it, so just pull the drive and reboot and it should boot properly.
