Re: SAS 6/iR as SAS/SATA only controller
Quoting Nathan Hruby nhr...@gmail.com: Is this configuration supported? No idea. But try turning of SMART if you have it on. Also you might want to check for firmware upgrades. We've had some problems where SMART checks were tripping SAS drives off-line. Doing a /sbin/chkconfig smartd off fixed the issue. I _think_ this might be fixed in newer firmware? -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: IPMI
Quoting Jason Edgecombe ja...@rampaginggeek.com: Would you please list a couple of these nagios-based systems? Preferably open-source. Groundwork OpenSource (GWOS) Community Edition Opsview Centreon Others I can't remember off the top of my head... Thanks, Jason -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: dsm_om_shrsvc start failes
Quoting Support @ Technologist.si supp...@technologist.si: Executing /etc/rc.d/init.d/dsm_om_shrsvc start .. Starting DSM SA Shared Services: terminate called after throwing an instance of 'std::runtime_error' what(): locale::facet::_S_create_c_locale name not valid /bin/bash: line 1: 27610 Terminated /opt/dell/srvadmin/sbin/dsm_om_shrsvcd [FAILED] See if typing: export LC_ALL=C before you start it fixes it... It fixed a problem for me on one of my systems (an rpath linux install). Not seen it elsewhere (CentOS/RHEL installs). -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: RAID-5 and database servers
Quoting J. Epperson d...@epperson.homelinux.net: On Thu, March 11, 2010 11:17, Dan Pritts wrote: On Tue, Mar 09, 2010 at 04:54:44PM -0600, John G. Heim wrote: Has anyone configured a database server with RAID-5? Is it really a bad idea http://www.orafaq.com/wiki/RAID Which says that unless money is no object, go with RAID 5. I'd say the page is somewhat outdated. If your disks are large, and most disks are today, RAID 5 should be replaced by RAID 6 or better. RAID 5 is risky if your disks are large... The larger the disk, the better the chance of a second failure during a RAID 5 rebuild (causing a total lose of data). Also, while it does indeed say go with RAID 5 if you can't afford RAID 10, it also says: use where availability is important, AND 'read' will be the majority of I/O's If your database is mostly write, RAID 5 would not be a great idea... Fortunately most databases are either mostly read, or mixed read-write. But there are some mostly-write databases, and these would be a bad fit for RAID 5 (or RAID 6). Again, it depends on your environment and your needs... It is possible RAID 5 is perfect for your needs, but terrible for my needs... If you don't need fast access, then it doesn't matter... Some people have databases, and it takes many hours to generate a report, and they are okay with that. Others can't bear it if the report takes more than 30 seconds... If your database use is interactive and response time is important, you likely need a different setup than if your database is mostly batch oriented and response time isn't as important... -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: RAID-5 and database servers
Quoting Jefferson Ogata powere...@antibozo.net: I've got several hundred disks running on RAID 5 and I've had one actual full RAID failure in 10 years, and that was my fault. You've been lucky! :) In 10 years, I've think I've had 3 RAID 5 failures (all rebuilt without problems). In terms of performance, depending on the workload, RAID 5 can outperform RAID 10. Very true. Furthermore Oracle's recommendations are based on what appears to be 5-10-year-old data I agree, it appears outdated to me also. Bear in mind also that now that Oracle is a hardware company, they'd just love you to buy almost twice as much disk (from them). I doubt that is a driving factor here... *Again*, this is why if you have particular performance requirements, you should consult with your database vendor to determine what bandwidth and IOPS you need, and benchmark your gear using different RAID configs. Or at a minimum, you need to define what your performance requirements are. If you can't quantify your performance requirements, you're just guessing and taking a shot in the dark. You may find that RAID 5 is just fine performance-wise, and you can get around 1.7 times the storage capacity with the same rack space, heat, and power load over RAID 10. Asking here you're just going to get people parroting Oracle's stale recommendations and speculating wildly without knowing anything about your workload. Well, the advise has been slightly better than that, but yes, we're all speculating without knowing anything about the workload. And I at least have stated that in my posts/replies... If a serious answer is needed, the OP needs to post the workload and performance expectations at a minimum... -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: RAID-5 and database servers
Quoting Jefferson Ogata powere...@antibozo.net: That's not what I mean by a full RAID failure. My mistake; I just glossed right over the word full as if it wasn't there... Sorry about that... Brain fart I guess -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: How to saw Hardware Raid
Quoting Adnan Rizvi sari...@buffalo.edu: When I give this command. It gives me no output. ./MegaCli64 -LdPdInfo -aAll The commands I use (via cron) are: MEGACLI=/opt/MegaRAID/MegaCli/MegaCli $MEGACLI -AdpAllInfo -aALL /tmp/AdpAllInfo.txt a=`grep Degraded /tmp/AdpAllInfo.txt | grep -o [0-9]` b=`grep Failed Disks /tmp/AdpAllInfo.txt | grep -o [0-9]` if [ $a != 0 -o $b != 0 ] ; then $MEGACLI -LdPdInfo -aALL /tmp/ldpd.txt mailx -s Check RAID on `hostname` root /tmp/ldpd.txt else cat /dev/null $MEGAPATH/MegaSAS.log fi But, maybe if you don't get output from -LdPdInfo you won't get it any from -AdpAllInfo also? OMSA would be the other option... -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: AHCI permitted on some Gen 11 servers (was Third-party drives not permitted on Gen 11 servers)
Quoting Tim Small t...@seoss.co.uk: Isn't this another reason to ditch hardware RAID controller cards entirely? To be honest - whenever possible, I use Linux's built-in md RAID1/5/6/10 instead of proprietary RAID solutions, and use Enterprise-grade SATA drives. This gives me: Depends on your needs (or clients)... I have a 2-node cluster of Dell 2900 machines which are configured as a SAN/NAS, and I'd never do anything but hardware raid on these. I had a 2-node cluster of Dell 2900 machines which are configured as a mail cluster (SMTP, POP3/IMAP, antivirus, spam filter, etc), and I'd never do anything but hardware raid on these. I've also got got a bunch more Dell servers, such as one that is my backup SMTP (MX) host, one that does my webmail, one that is for computation jobs, one that is a print server, and so on. ALL of these use software raid... My web server has hardware raid now, but only because it is running on the hardware which was my old NAS before I built the above SAN/NAS system. Otherwise, it wouldn't have hardware raid, but rather software raid... Your situations may vary, but there are some situations where hardware raid is still the best solution. However, those situations are fewer and fewer each year. I used to order ALL my PE servers with HW RAID... No I order maybe 10% with HW RAID. So... looking on the bright side, some Gen 11 do support SATA and AHCI, so why not just ditch this proprietary stuff altogether? Well, some people work for clients, and may not be able to. Some people might just want the HW RAID for certain applications... But in many cases, SW RAID is a better choice today. That didn't used to be the case 10 years ago, but the times have drastically changed since then... Tim. -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
RE: Third-party drives not permitted on Gen 11 servers
Quoting Ronan Mullally ro...@iol.ie: Dell is no NetApp. Having used solutions from both, there's a world of a difference. You are kidding yourself if you think you're on a nearby practice ground, let alone in the same ballpark. Dell does sell enterprise storage solutions like NetApp (some their own, some co-branded). Think about their SAN and DAS boxes... I'd have little troble with such a policy on their SAN's for example. But, a Poweredge Server is no NetApp. That is for sure... I find it funny that they use the phrase enterprise storage solution when refering to a Poweredge Server... Many of my PE servers store no data except the OS. I still want to mirror the OS in case of failure, but the storage is on a SAN/NAS elsewhere, not in the PE server... So trying to compare a PE Server used this way (not for storage) to a NetApp is apples to oranges. This is really true for PE 1U servers with only a small number of bays... -Ronan -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
RE: Third-party drives not permitted on Gen 11 servers
Quoting Mirosław Jaworski m...@ikp.pl: We anxiously wait for further lock-ins. I had a slippery slope rant in my last email, but I decided to remove it before sending... See you think a bit alike... The funny thing is, when we ran DEC and SUN stuff, all Dell ever told us was why we should switch to their Industry Standard hardware; how great it would be to use Industry Standard equipment because we could buy stuff off-the-shelve and not have to buy from a specific vendor; how using their Industry Standard computers would remove software incompatibilities and such... So much for Dell's Industry Standard hardware, huh? Wonder what their new sales pitch will be now? Maybe they can steal a line from the diaper commercial (yeah, think about it...)... Dell -- We're a big kid now... Anyway, again, I don't much care, I'll just buy anything new with the older PERC 6 cards for now. I know the bandwidth is better in the new PERC cards, but I can deal with the current speed... If/When Dell only offers lock-in PERC's, well, I'll figure out what to do then... -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: Third-party drives not permitted on Gen 11 servers
Quoting s.mishima s.mish...@gmail.com: I have PowerEdge Server with DELL certified Seagate harddisk. I bought it from DELL. The DELL certified Seagate harddisk has lock problem 1/320 probability every power-on spinup. Yeah, I bought two of those systems too. ;) Again, thought about writing this in my post, but decided against it... But DELL support says, Out of Warranty. Yeah, fortunately it is a firmware upgrade you can do without warranty. In fact, Dell wouldn't replace them at all, only provide the firmware update. What is DELL certified ? What is DELL warranty ? The proper question here is, why didn't Dell's extensive testing for certification help catch this issue? The warranty doesn't really apply, since it is just a firmware upgrade, and the firmware is free... -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: help configuring a db server
Quoting John G. Heim jh...@math.wisc.edu: to go) and mysql. We have databases for spamassassin bayesian rules, drupal, moodle, imp (webmail), and our own private data. Our private data is pretty small with the biggest table containing under 10,000 records. We do have a table with about 4,00 PDF docs in a blob field. I think we can get a machine with a quad core, 32 Gb of RAM, and 300 Gb disk Sounds fine to me. I recommend, when possible, a minimum of 1 CPU and 1 GB memory per database. Since you mention 5 databases, that means 5 CPUs (cores) and 5 GB memory minimum. Since you can't buy 5 cores, a single quad core would be okay (a dual quad core even better). But your spec sounds fine to me. for under $6000. But I'm confused about disk. I would think disk pspeed would be fairly important. How can I configure a machine with a fast disk? What are my options from Dell in that regard? Get the fastest RAID controller you can and are comfortable with, and as many of the fastest disks you can afford as you can fit in the machine. Since you want to stay under $6000, using SSD or FusionIO is probably out. I would think (haven't verified) that you could buy 4 (or 5) 15K RPM SAS drives in your price range, setup as a RAID 10. If not, try 10K RPM SAS drives. If that fails, well, there is always SATA... I personally like to buy 7 drives: 2 RAID-1 for the OS, 4 RAID-10 for the MySQL databases, and 1 hotspare. But, if you need to keep costs down, you can dump the RAID 1 and just do 5 drives (RAID 10 plus hot-spare). You'd have to spec all that one Dell's web site to see if it comes in under $6K. If not, just start dropping down until you hit your mark (from 7 drives to 5, from 15K SAS to 10K SAS to SATA). -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: RAID battery-backed cache - necessary?
Quoting Adam Nielsen adam.niel...@uq.edu.au: Ahh, okay, so it's not there for pure write speed as such, it's there so that software can be told yes, the data you just wrote is now on disk no matter what even though the actual disk write may happen at a later time. Yes, all true. But it is also used by some to do write combining or write ordering or such (try a google search like raid5 small write problem for info). And it is also there so that it can be used for parity calculations on raid sets that use parity. And it is also there so that if you lose power while writing out a parity stripe, such that the data is written but the parity isn't written when the power goes out, it doesn't create a corrupted stripe that can't be recovered on a disk failure (try a google search on raid write hole for info). And I'd bet there are other reasons too. I guess although a UPS would stop the OS cache from going away, it can't help if the kernel crashes. Or when the UPS stops on a prolonged power outage. RAID batteries will generally go for weeks or months without power... UPS batteries usually go for minutes or maybe a few hours without power... Sometimes power is out for a while... Well that answers my question - thanks :-) At least partially... :) There's usually more to these things than meets the eyes... Cheers, Adam. -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
Re: OMSA 6.2 install issues...
Quoting John Oliver joli...@john-oliver.net:
So what's the correct order? :-)
Not sure. :) The following is one ordering which works, but I bet there
are at least several that work.
libsmbios smbios-utils-bin srvadmin-cm srvadmin-xmlsup srvadmin-omacore
srvadmin-omilcore srvadmin-deng srvadmin-hapi srvadmin-isvc srvadmin-omcommon
srvadmin-smcommon srvadmin-racdrsc5 srvadmin-racadm5 srvadmin-rac5-components
srvadmin-fsa srvadmin-megalib srvadmin-storage srvadmin-sysfsutils
srvadmin-storage-populator srvadmin-storelib-sysfs
srvadmin-storelib srvadmin-storelib-libpci
One thing I remember about the order that didn't work is that I installed
srvadmin-{deng,hapi,isvc} before I installed srvadmin-omilcore and maybe
some others... Installing them too soon might be the problem? Not sure
though, and I unfortunately didn't keep the order that didn't work...
--
Eric Rostetter
The Department of Physics
The University of Texas at Austin
Go Longhorns!
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Re: OMSA help in unsupported install...
Quoting Vanush Misha Paturyan mi...@cs.nuim.ie: but can you double-check following: 1. your snmpd.conf file does have smuxpeer .1.3.6.1.4.1.674.10892.1 2. your snmpd is started WITHOUT -I -smux (this is default on Debian and breaks smuxpeer)(ps ax | grep snmpd shows the parameters for snmpd) (according to your log files smuxpeer is running so I think answers to those two are yes, but just to make sure ) Yes, already checked those (the first from OMSA docs, the second from a google search). Both were correct. following is based on OMSA 5.4, not 5.1 as in your case, but here's how snmpd and omsa communicate (at least I think that's how) 1. you need dsm_sa_snmp32d, dsm_sa_datamgr32d (and possibly dsm_sa_eventmgr32d) to be running (ps aux should show them). Yes, have all that. 2. once you get the PID of dsm_sa_snmp32d run lsof -p PID and confirm that it does have an established TCP IPv4 connection to localhost:smux (or localhost:199). Ah, cool... Thanks for that one. To debug snmpd stop your running instance and start it from command prompt as /usr/sbin/snmpd -Dsmux -f -Lo -Lf /var/log/snmpd.log -u root (this will write output on both screen and in /var/log/snmpd.log file). You can specify -DALL, see what it generates, and then filter out things you want to analyse. Way cool! Thanks a million. And another thing worth checking (if you haven't done it yet): run ldd sdm_sa_smnp32d to see it has all the libraries it needs. You haven't told yet if your Linux is 32 or 64 bit. OMSA is 32bit so on 64bit versions it needs bunch of 32bit libraries. Yea, I spent a day just getting this worked out (because yes, I'm running a 64-bit distro, and lots of libraries were missing...) Thanks to your help and my persistence, I now have it working... Your debugging tips (above) were a great help. I actually was able to upgrade it, and I'm now running a current OMSA (OMI-SrvAdmin-Dell-Web-LX-620-677.rhel4.tar.gz) on OpenFiler 2.3 with the SNMP working on two (identical) machines. Only had a few minor issues getting the 6.2 to work... Misha. -- Vanush Misha Paturyan Senior Technical Officer Computer Science Department NUI Maynooth -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
OMSA help in unsupported install...
I'm trying to install what is probably an unsupported OMSA (5.1.0) on a very much unsupported OS (rpath linux, specifically OpenFiler NAS/SAN appliance 2.3). And I'm hoping despite that maybe someone on this list might be able to help me. :) I have OMSA installed and running. omreport works and reports everything except storage (because OMSA 5.1.0 pre-dates the perc 6/i in the machine, so this is excepted to fail). So everything looks good locally... I can see everything I've tried (fans, volts, temps, system summary, etc) other than storage as noted above. In /var/log/messages, I can see that OMSA is trying to talk to snmpd, ala: Feb 3 14:01:53 filer2 snmpd: snmpd startup succeeded Feb 3 14:01:53 filer2 snmpd[24188]: NET-SNMP version 5.4.1 Feb 3 14:01:54 filer2 snmpd[24188]: [smux_accept] accepted fd 9 from 127.0.0.1:60802 Feb 3 14:01:54 filer2 snmpd[24188]: accepted smux peer: oid SNMPv2-SMI::enterprises.674.10892.1, descr Systems Management SNMP MIB Plug-in Manager But when I remotely snmpwalk it, it returns no values. It is connecting, again via /var/log/messages: Feb 3 14:02:48 filer2 snmpd[24188]: Connection from UDP: [172.16.111.73]:56624 Feb 3 14:02:48 filer2 snmpd[24188]: Received SNMP packet(s) from UDP: [172.16.111.73]:56624 Feb 3 14:02:48 filer2 snmpd[24188]: Connection from UDP: [172.16.111.73]:56624 So, the question I have is: how would I go about trying to diagnose why I can't remotely query the machine via snmp? Any tips at all (local checks, snmpd config checks, OMSA config checks, etc) appreciated, since I'm rather a novice at setting up snmpd as well as unsupported OMSA setups. :) Thanks in advance for any help that might come my way. -- Eric Rostetter The Department of Physics The University of Texas at Austin Go Longhorns! ___ Linux-PowerEdge mailing list Linux-PowerEdge@dell.com https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
