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Re: Meeting Notes 12/7/05




Just to clarify the data center referred to "kitty negotiating" is the MITC buidling NOT to be confused with MCIT the medical campus one that's being built in buildling #2.

-- Andrew

On Wed, 7 Dec 2005, Michael C Garrison wrote:

UMCE Notes 12/07/05

On Call:
-----------------------
   - number of issues
       - why are ITD people paid a different rate
           - On Average UMCE people get paid more than 3.50/hour
   - sysrq
       - mcgarr has notes about how to use it and will be sent out
       - gpcc has a machine to play with
   - power issues in ALDF
       - tech forum on Jan 18th will be presented by Barb and others
           - anyone with issues should come and discuss it with them
   - the future datacenter(s)
       - nothing for 10 months to a year or more
       - Kitty is negotiating with merit to lease some of MCIT
           - half of our space, geared for high density
       - new datacenter out at arbor lakes
           - expected to be fully occupied
           - will leave half the space at hoover and green empty
               - has 24/7 staff
               - no generator or redundant networking
       - no upgrades at SEB


OpenAFS 1.4 (mcgarr)
-----------------------
- 1.4. client is currently in experimental
- will hopefully be moved to shared sometime next week
- there are issues on high volume machines where the cachemanager
runs out of vmalloc and causes the machine to segfault and crash (sftp/login)
- two ways to handle it
- clean up the tokens properly on exit
- run the garbage collector
echo 1 >> /proc/sys/afs/GCPAGs (or use sysctl)
- will be sending out the ideal parameters for cache size and settings
hopefully sometime next week and should see perf improvements
- CAEN is accessing the fileservers via the 10. network
- ainman doesnt believe our vlan isnt bridged to theirs
- jane is getting more details


Linux 2.6 Kernel (cdstuart/mcgarr)
-----------------------
   - Large File System support (> 2TB)
   - have a config for the 2.6 kernels based on the 2.4's
       - but it's AMD64
   - high point raid drivers are now built in and not ramdisk'ed
   - concerns are expressed about /dev/fs transition to udev
       - userland tools
   - policy for upgrading in 2.6 series
       - service by service upgrades to 2.6

console servers (mcgarr)
-----------------------
   - migration to anduril linux only for web and gpcc
   - root password has been updated on anduril
   - on its own 10. vlan
   - both distribute dhcp addresses
   - if one goes down, the other can take over

network policy (ainman)
-----------------------
   - non routed networks [console, backup]
       - don't use DNS
       - need a standard policy on how we handle IP address allocations
       - what do we do when a machine needs two backend addresses
       - or a machine that has no front end machine
   - what networks are appropriate for what tasks
       - prod vs non production
       - get rid of the routing of sites out here and vice versa
   - consolidate staff networks
   - news/web network ( 141.211.144 ) running out
       - getting 141.211.144.128/25 we are getting

sysstat package rebuild (mcgarr)
-----------------------
- there is a new build of sysstat (6.0.1) for both 32bit and 64bit in shared



better utility packages???
-----------------------
- create a command file that has all of the utility packages in it that people can include
- lspci
- iperf
- lsof
- nmap
- mutt current release w/ssl'd connections
- nmh, exmh
- gvim
- misc other stuff


fsck version and fsck bugs
-----------------------
   - Marcus has 1.35 failing to repair problems in the dog test cell
   - 1.35 is old and should go away
   - 1.38 is the most recent
       - cdstuart will take care of building a new bootcd
   - steve s will test the fsck on the current cd to see if it heals
     corrupt file systems that 1.35 couldn't deal with.

finish all of the radmind server utilities?
-----------------------
- cdstuart will finish his soon
- ueda needs to finish her stuff too
- sean needs to implement lock-nag
- miguel almost has his script ready that will expand a k in K setup
- gab will write the glue to put everything together
- once done, need to schedule another session to see what it flags
clean it up
- then we can cron it
- we'd a lcksum for command file
- and/or a force lapply which will create directories that don't exist
so you can run the force and afterwards run fsdiff to get their directories
- negative files for command files


fix man page for tar in transcripts
-----------------------
   - We could get these elsewhere like debian
   - If other packages are found that have info-only docs, debian is
     often a solution

next meeting
-----------------------
   - January 4th, 2006
   - Then return to 4th wednesdays
   - Leader: Tony
   - Notes: Willie
   - Identify those who havent shown up and find out what days work for them