June 2011 - WLUG - wlug.mailman3.com

Re: [Wlug] RHEL cluster question...

by John Stoffel

David> Ran into a little situation today where we need to cycle David> power/reboot a bunch of nodes that are down and out, by telnet David> to the relevant terminal server ports and the advanced David> management module. This involves multiple consoles, windows, David> command line, GUI, the works, as follows: David> Subject: RHEL cluster, 4.0 through 5.3. David> Issue: How to find IP addresses of terminal server ports which David> service individual nodes which are down and out. (need to David> telnet to them for troubleshooting/maintenance/rebooting) I use 'conserver' (http://www.conserver.org) to manage a bunch of serial console ports. Works great to map the hostname to it's console. It supports telnet/ipmi access too, but I haven't used that feature yet. So I just do 'console <hostname>' and I get connected to the terminal server which holds the serial port without me having to remember anything. David> And: IP address and/or hostname of advanced management module David> which runs on the clusters . Some clusters have a "magic David> decoder ring" file that gives this information; most don't. Why don't you stuff this info into DNS? <hostname>-ilom/ilo/rlm/mgt is how we do things here, so I don't have to remember IPs, I just goto the right hostname. David> Any thoughts? Workaround so far has been via eyeballing racks David> of blades and doing various arithmetic problems in our heads. Yuck. Be lazy. Write it out once on install and stuff the info in DNS. Even if it's just an internal sub-domain which does the management interfaces. host.mgt.work.com would be one way. More details on how you do things now would be helpful too. John

June 14, 2011

RHEL cluster question...

by David Hardy

Greetings, fellow Linux lovers; Ran into a little situation today where we need to cycle power/reboot a bunch of nodes that are down and out, by telnet to the relevant terminal server ports and the advanced management module. This involves multiple consoles, windows, command line, GUI, the works, as follows: Subject: RHEL cluster, 4.0 through 5.3. Issue: How to find IP addresses of terminal server ports which service individual nodes which are down and out. (need to telnet to them for troubleshooting/maintenance/rebooting) And: IP address and/or hostname of advanced management module which runs on the clusters . Some clusters have a "magic decoder ring" file that gives this information; most don't. Any thoughts? Workaround so far has been via eyeballing racks of blades and doing various arithmetic problems in our heads.

June 13, 2011

Announce: WLUG Meeting tonight 7pm

by Chuck Anderson

Hi folks, At tonight's meeting we'll have a discussion of current events in the Linux/OSS world, Questions and Answers, etc. followed by our traditional outing @ Tech Pizza. The meeting room is in WPI's Morgan Hall (building 'H' on the campus map [1]), down the hallway to the right of the dining hall entrance. [1] http://www.wpi.edu/Images/CMS/WPI/walkingmap.pdf See you all there, Chuck President, Worcester Linux Users' Group

June 8, 2011

Re: [Wlug] Looking for DDR 333 (PC2700) 512mb or 1gb mem

by John Stoffel

David> I might have some in my big box o' memory, pretty sure I do David> actually. I can take a look later tonight when I get home from David> work, will let you know. How many DIMMs can you fit in the David> system/how many do you want? That would be awesome! I can fit a max of three, 1Gb DIMMs into this motherboard. It's really not worth spending money on the system, but it's just for the kids and they don't know better. :] David> Given all the content that is in HD these days, just might be a David> better choice to get a Premiere, unless you don't have HD David> capability on the device connected to the TV. You could always David> search a goodwill or salvation army for a series 2 to pillage a David> PS from. I'm still using my 32" JVC tube TV, around 13 years old and still going strong. No rush to replace it. I like the Goodwill/Salvation army idea too. Maybe there's one out there on craigslist as well... Anyone got a deadish Series 2 they want to give me? *grin* John

June 8, 2011

Re: [Wlug] Looking for DDR 333 (PC2700) 512mb or 1gb mem

by David Coutu

I might have some in my big box o' memory, pretty sure I do actually. I can take a look later tonight when I get home from work, will let you know. How many DIMMs can you fit in the system/how many do you want? Given all the content that is in HD these days, just might be a better choice to get a Premiere, unless you don't have HD capability on the device connected to the TV. You could always search a goodwill or salvation army for a series 2 to pillage a PS from. Thanks! Dave > Date: Tue, 7 Jun 2011 10:19:57 -0400 > From: john(a)stoffel.org > To: wlug(a)wlug.org > Subject: [Wlug] Looking for DDR 333 (PC2700) 512mb or 1gb mem > > > Guys, > > I've got an old home system for the kids. Works fine, but I've only > got 768Mb of RAM in it. Anyone got any 512Mb or 1Gb DIMMS they want > to sell? DDR, PC2700 is what I need. > > It's around $30/ea for 1Gb Dimms on newegg, which just isn't > justified. It's almost more cost effective to get a new > motherboard/cpu/RAM for this system instead. > > Thanks! > John > > P.S. My Tivo, Series 2 has died finally, after 8+ years. I can't get > my original 40Gb disk and mfstools 2.0 backup image to boot. > Sigh... could be a power supply issue, but again, is it worth the > money to fix or should I just get a premiere instead? > > -- > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug

June 7, 2011

Looking for DDR 333 (PC2700) 512mb or 1gb mem

by John Stoffel

Guys, I've got an old home system for the kids. Works fine, but I've only got 768Mb of RAM in it. Anyone got any 512Mb or 1Gb DIMMS they want to sell? DDR, PC2700 is what I need. It's around $30/ea for 1Gb Dimms on newegg, which just isn't justified. It's almost more cost effective to get a new motherboard/cpu/RAM for this system instead. Thanks! John P.S. My Tivo, Series 2 has died finally, after 8+ years. I can't get my original 40Gb disk and mfstools 2.0 backup image to boot. Sigh... could be a power supply issue, but again, is it worth the money to fix or should I just get a premiere instead? --

June 7, 2011