Difference between revisions of "Sysadmin Todo List"

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== Important ==
+
This is the new Sysadmin Todo List as of 05/27/2010. The previous list was moved to [[Old Sysadmin Todo List]]. This list list is incomplete, and needs updating.
* Printer queue for Copier: Konica Minolta Bizhub 750. IP=pita.unh.edu  '''Seems like we need info from the Konica guy to get it set up on Red Hat and OS X.  The installation documentation for the driver doesn't mention things like the passcode, because those are machine-specific. Katie says that if he doesn't come on Monday, she'll make an inquiry.'''
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* Printer in 323 is '''not''' hooked up to a dead network port. Actually managed to ping it. Can't print though.
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== Projects ==
* Make and install power supply mount for taro
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*Convert physical and VMs to CentOS 6 for compute servers ([[taro]],[[endeavour]]) and all others to either 6 or 7.  
* Figure out what network devices on jalapeno and tomato are doing what
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**VMs: Einstein
* Look into monitoring that is already installed: RAIDs etc.
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**Physical: [[endeavour]], [[taro]], and [[gourd]]
* Look into getting computers to pull scheduled updates from rhn when they check in.
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*Mailman: Clean up mailman and make sure all the groups and users are in order.
* Update Tomato to RHEL5 and check all services einstein currently provides. Then switch einstein <-> tomato, and then upgrade what was originally einstein. Look into making an einstein, tomato failsafe setup.
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*CUPS: Look into getting CUPS authenticating users through LDAP instead of using Samba.
* Get on NPG mailing list
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*Printer: Get printtracker.py working and see if you can get a driver to properly recognize page number count instead of just giving the value as a number of 1 which corresponds to a job submission not the number of pages.
== Ongoing ==
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*Check /etc/apcupsd/shutdown2 script on Gourd to make sure all the keys are correctly implemented so the machines go down properly during a power outage.
* Clean up 202
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*Do a check on Lentil to see if there is any unneccessary data being backed up.
** Figure out what's worth keeping
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** Figure out what doesn't belong here
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==Daily Tasks==
* Take a look at spamassassin - Improve Performance of this if possible.
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* Test unknown equipment:
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These are things that should be done every day when you come into work.
** UPS
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** Fans
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#Do a physical walk-through/visual inspection of the server room
* Eventually one day come up with a plan to deal with pauli2's kernel issue
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#Verify that all systems are running and all necessary services are functioning properly
== Completed ==
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#*For a quick look at which systems are up you can use /usr/local/bin/[[serversup.py]]
* Get ahold of a multimeter so we can test supplies and cables. '''Got a tiny portable one.'''
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#*[[Gourd]]: Make sure that home folders are accessible, all virtual machines are running
* Order new power supply for Taro '''Ordered from Newegg 5/24/2007'''
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#*[[Einstein]]: Make sure that [[LDAP]] and all [[e-mail]] services (dovecot, spamassassain, postfix, mailman) are running
* Weed out unneccesary cables, we don't need a full box of ata33 and another of ata66. '''Consolodated to one box'''
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#*[[Roentgen]]: Make sure website/MySQL are available
* Installed new power supply for Taro.
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#*[[Jalapeno]]: Named and Cups
* Get printer (Myriad) working.
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#*[[Lentil]]: Verify that backups ran successfully overnight. Check space on backup drives, and add new drives as needed.
* Set up skype.
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#Check [[Splunk]]: [https://pumpkin.farm.physics.unh.edu:8000 click here if you're in the server room], or open localhost:8000 (use https) from [[Pumpkin]]
* Fix sound on improv so we can use skype and music. '''sound was set to alsa, setting to OSS fixed it. should have worked either way though.'''
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#*Check logs for errors, keep an eye out for other irregularities.
* Check out 250gb sata drive found in old maxtor box. '''Clicks/buzzes when powered up.'''
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#Check [[Cacti]]: [http://roentgen.unh.edu/cacti http://roentgen.unh.edu/cacti]
* Look into upgrades/patches for all our systems. '''Scheduled critical updates to be applied to all machines but einstein. If they don't break the other machines, like they didn't break the first few, I'll apply them to einstein too.'''
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#*Verify that temperatures are acceptable.
* Started download of fedora 7 for the black computer. 520KB/s downstream? Wow.
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#*Monitor other graphs/indicators for any unusual activity.
* Get Pauli computers up. '''I think they're up. They're plugged in and networked.'''
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* Find out what the black computer's name is! '''We called it blackbody.'''
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==Weekly Tasks==
* "blackbody" is Currently online. For some reason, grub wasn't properly installed in the MBR by the installer.
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* Consolodate backups to get a drive for gourd. '''Wrote a little script to get the amanda backup stuff into a usable state, taking up WAY less space.'''
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These are things that should be done once every 7 days or so.
* Submitted DNS request for blackbody. '''blackbody.unh.edu is now online'''
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* Label hard disks '''Labeled all that we knew what they were!'''
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#Check physical interface connections
* Labeled machines' farm Ethernet ports
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#*Verify that all devices are connected appropriately, that cables are labeled properly, and that all devices (including RAID and IPMI cards) are accessible on the network.
* Made RHEL5 server discs.
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#Check Areca RAID interfaces
* Replaced failed drive in Gourd - 251gb maxtor sata. Apparently the WD drives are 250, maxtor are 251.
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#*The RAID interfaces on each machine are configured to send e-mail to the administrators if an error occurs. It may still be a good idea to login and check them manually on occasion as well, just for the sake of caution.
* Repair local network connection on Gourd.
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#Clean up the server room, sweep the floors.
* Repair LDAP on Gourd (probably caused by net connection). '''Replacing the drive fixed every gourd problem!!  Seems to have been related to the lack of space on the RAID when a disk was missing. If not that, IIAM (It is a mystery).'''
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* New combo set on door for 202.
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==Monthly Tasks==
* Tested old PSU's, network cables.
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* All machines now report to rhn. None of them pull scheduled updates though. Client-side issue?
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#Perform [[Enviromental_Control_Info#Scheduled_Maintenance|scheduled maintenance]] on the server room air conditioning units.
* Documentation for networking - we have no idea which config files are actually doing anything on some machines. '''Pretty much figured out, but improv and ennui still aren't reachable via farm IPs. But considering the success of getting blackbody set up from scratch, it seems that we know enough to maintain the machines that are actually part of the farm.'''
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#Check S.M.A.R.T. information on all server hard drives
* Make network devices eth0 and eth0.2 on all machines self-documenting by giving them aliases "farm" and "unh" '''jalapeno and tomato remain'''
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#*Make a record of any drives which are reporting errors or nearing failure.
* Figure out why pauli nodes don't like us. (Low-priority!) '''Aside from pauli2's kernel issue this is taken care of'''
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 +
==Annual Tasks==
 +
 
 +
These are tasks that are necessary but not critical, or that might require some amount of downtime. These should be done during semester breaks (probably mostly in the summer) when we're likely to have more time, and when downtime won't have as detrimental of an impact on users.  
 +
 
 +
#Server software upgrades
 +
#*Kernel updates, or updates for any software related to critical services, should only be performed during breaks to minimize the inconvenience caused by reboots, or unexpected problems and downtime.
 +
#Run fsck on data volumes
 +
#Clean/Dust out systems
 +
#Rotate old disks out of RAID arrays
 +
#Take an inventory of our server room / computing equipment
 +
 
 +
<!--{| cellpadding="5" cellspacing="0" border="1"
 +
! Time of Year !! Things to Do !! Misc.
 +
|-
 +
| Summer Break || ||
 +
|-
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|  || Major Kernel Upgrades ||
 +
|-
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|  || Run FDisk ||
 +
|-
 +
|  || Clean (Dust-off/Filters) while Systems are Shut down ||
 +
|-
 +
| Thanksgiving Break || ||
 +
|-
 +
| Winter Break || ||
 +
|-
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|  || Upgrade RAID disks || Upgrade only disks connected to a RAID card
 +
|--
 +
| Spring Break || ||
 +
|-
 +
|} -->

Latest revision as of 16:42, 15 February 2015

This is the new Sysadmin Todo List as of 05/27/2010. The previous list was moved to Old Sysadmin Todo List. This list list is incomplete, and needs updating.

Projects

  • Convert physical and VMs to CentOS 6 for compute servers (taro,endeavour) and all others to either 6 or 7.
  • Mailman: Clean up mailman and make sure all the groups and users are in order.
  • CUPS: Look into getting CUPS authenticating users through LDAP instead of using Samba.
  • Printer: Get printtracker.py working and see if you can get a driver to properly recognize page number count instead of just giving the value as a number of 1 which corresponds to a job submission not the number of pages.
  • Check /etc/apcupsd/shutdown2 script on Gourd to make sure all the keys are correctly implemented so the machines go down properly during a power outage.
  • Do a check on Lentil to see if there is any unneccessary data being backed up.

Daily Tasks

These are things that should be done every day when you come into work.

  1. Do a physical walk-through/visual inspection of the server room
  2. Verify that all systems are running and all necessary services are functioning properly
    • For a quick look at which systems are up you can use /usr/local/bin/serversup.py
    • Gourd: Make sure that home folders are accessible, all virtual machines are running
    • Einstein: Make sure that LDAP and all e-mail services (dovecot, spamassassain, postfix, mailman) are running
    • Roentgen: Make sure website/MySQL are available
    • Jalapeno: Named and Cups
    • Lentil: Verify that backups ran successfully overnight. Check space on backup drives, and add new drives as needed.
  3. Check Splunk: click here if you're in the server room, or open localhost:8000 (use https) from Pumpkin
    • Check logs for errors, keep an eye out for other irregularities.
  4. Check Cacti: http://roentgen.unh.edu/cacti
    • Verify that temperatures are acceptable.
    • Monitor other graphs/indicators for any unusual activity.

Weekly Tasks

These are things that should be done once every 7 days or so.

  1. Check physical interface connections
    • Verify that all devices are connected appropriately, that cables are labeled properly, and that all devices (including RAID and IPMI cards) are accessible on the network.
  2. Check Areca RAID interfaces
    • The RAID interfaces on each machine are configured to send e-mail to the administrators if an error occurs. It may still be a good idea to login and check them manually on occasion as well, just for the sake of caution.
  3. Clean up the server room, sweep the floors.

Monthly Tasks

  1. Perform scheduled maintenance on the server room air conditioning units.
  2. Check S.M.A.R.T. information on all server hard drives
    • Make a record of any drives which are reporting errors or nearing failure.

Annual Tasks

These are tasks that are necessary but not critical, or that might require some amount of downtime. These should be done during semester breaks (probably mostly in the summer) when we're likely to have more time, and when downtime won't have as detrimental of an impact on users.

  1. Server software upgrades
    • Kernel updates, or updates for any software related to critical services, should only be performed during breaks to minimize the inconvenience caused by reboots, or unexpected problems and downtime.
  2. Run fsck on data volumes
  3. Clean/Dust out systems
  4. Rotate old disks out of RAID arrays
  5. Take an inventory of our server room / computing equipment