Re: [CentOS] IBM ServeRAID M5014 and CentOS 5.5
http://www.redbooks.ibm.com/technotes/tips0738.pdf clearly states Support for RHEL 4 as well as 5, so you should have no problem with CentOS 5.5. regards Jens Neu Peter Hinse Sent by: centos-boun...@centos.org 06/15/2010 01:46 PM Please respond to CentOS mailing list To CentOS mailing list cc Subject [CentOS] IBM ServeRAID M5014 and CentOS 5.5 Hi all, we are about to buy some IBM x3550 M2 servers with ServeRAID M5014 SAS onboard controller. Can anyone confirm that these controllers will work with CentOS 5.5 (seems to be some rebranded LSI controller). I cannot find any hint in the 2.6.18-194.3.1.el5 sources... Regards, Peter ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos signature.asc Description: Binary data ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Running yum shows errors
Hi, Did you try to disable the mirror selection and specify one single repo? -Jens - Originalnachricht - Von: Jatin Davey [jasho...@cisco.com] Gesendet: 14.07.2010 11:03 ZE5B An: centos@centos.org Betreff: [CentOS] Running yum shows errors Hi I am getting the following errors when i try to use yum to install the net-snmp paclages. [r...@sc1 yum.repos.d]# yum install net-snmp Loaded plugins: fastestmirror Determining fastest mirrors Traceback (most recent call last): File "/usr/bin/yum", line 29, in ? yummain.user_main(sys.argv[1:], exit_code=True) File "/usr/share/yum-cli/yummain.py", line 229, in user_main errcode = main(args) File "/usr/share/yum-cli/yummain.py", line 104, in main result, resultmsgs = base.doCommands() File "/usr/share/yum-cli/cli.py", line 339, in doCommands self._getTs(needTsRemove) File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 101, in _getTs self._getTsInfo(remove_only) File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 112, in _getTsInfo pkgSack = self.pkgSack File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 591, in pkgSack = property(fget=lambda self: self._getSacks(), File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 434, in _getSacks self.repos.populateSack(which=repos) File "/usr/lib/python2.4/site-packages/yum/repos.py", line 223, in populateSack self.doSetup() File "/usr/lib/python2.4/site-packages/yum/repos.py", line 71, in doSetup self.ayum.plugins.run('postreposetup') File "/usr/lib/python2.4/site-packages/yum/plugins.py", line 176, in run func(conduitcls(self, self.base, conf, **kwargs)) File "/usr/lib/yum-plugins/fastestmirror.py", line 176, in postreposetup_hook if downgrade_ftp and _len_non_ftp(repo.urls) == 1: File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 585, in urls = property(fget=lambda self: self._geturls(), File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 582, in _geturls self._baseurlSetup() File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 538, in _baseurlSetup mirrorurls.extend(self._getMirrorList()) File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1349, in _getMirrorList fo = urlgrabber.grabber.urlopen(url, proxies=self.proxy_dict) File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 612, in urlopen return default_grabber.urlopen(url, **kwargs) File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 891, in urlopen return self._retry(opts, retryfunc, url) File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 852, in _retry r = apply(func, (opts,) + args, {}) File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 890, in retryfunc return URLGrabberFileObject(url, filename=None, opts=opts) File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1008, in __init__ self._do_open() File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1091, in _do_open fo, hdr = self._make_request(req, opener) File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1204, in _make_request fo = opener.open(req) File "/usr/lib/python2.4/urllib2.py", line 358, in open response = self._open(req, data) File "/usr/lib/python2.4/urllib2.py", line 376, in _open '_open', req) File "/usr/lib/python2.4/urllib2.py", line 337, in _call_chain result = func(*args) File "/usr/lib/python2.4/urllib2.py", line 573, in lambda r, proxy=url, type=type, meth=self.proxy_open: \ File "/usr/lib/python2.4/urllib2.py", line 580, in proxy_open if '@' in host: TypeError: iterable argument required Please let me know what needs to be done. Thanks Jatin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos http://www.biotronik.com * * * * * * * * BIOTRONIK SE & Co. KG Woermannkehre 1, 12359 Berlin, Germany Sitz der Gesellschaft: Berlin, Registergericht: Berlin HRA 6501 Vertreten durch ihre Komplementärin: BIOTRONIK MT SE Sitz der Gesellschaft: Berlin, Registergericht: Berlin HRB 118866 B Vorsitzender des Verwaltungsrats: Dr. Max Schaldach Geschäftsführende Direktoren: Christoph Böhmer, Dr. Werner Braun, Dr. Lothar Krings * * * * * * * * BIOTRONIK - A global manufacturer of advanced Cardiac Rhythm Management systems and Vascular Intervention devices. Quality, innovation, and reliability define BIOTRONIK and our growing success. We are innovators of technologies like the first wireless remote monitoring system - Home Monitoring®, Closed Loop Stimulation and coveted lead solutions as well as state-of-the-art stents, balloons and guide wires for coronary and peripheral indications. We highly invest in the development of drug eluting devices and are leading the industry
[CentOS] GPT Partitions >2.2T with Centos 5.5
Dear all, unfortunately I observe drastic drops in read- performance when I connect LUNs >2.2T to our Centos 5.5 Servers. I suspect issues with the GUID Partition Table, since it happens reproducibly only on the LUNs >2.2T and goes back to normal performance when using a LUN <2T with "normal", Legacy MBR partitions. All machines are CentOS 5.5 (and RHEL 5.5) on IBM Blades LS21/LS41, all LUNs via Brocade 4G FC Switches from a SUN 7310 Unified Storage, EXT3 filesystems with standard settings. Any hints? regards Jens ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] GPT Partitions >2.2T with Centos 5.5
> I think ext3 is a bit slow on so big LUNS, try xfs or similar? there is no official support for xfs in RHEL5, so that is not an option. Besides, I'm talking about a drop of >150mb/s to ~10mb/s read performance when cracking the 2.2T size. This is clearly not in the ext3 (or FS for that matter) magnitude of performance issues. Also, numbers stay the same when dd'ing on the raw device (LUN). -Jens Eero Volotinen Sent by: centos-boun...@centos.org 07/14/2010 11:35 AM Please respond to CentOS mailing list To CentOS mailing list cc Subject Re: [CentOS] GPT Partitions >2.2T with Centos 5.5 http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] GPT Partitions >2.2T with Centos 5.5
> Do you see the slow behaviour (10 MiB/s) for all of the device or only for the > part that is >2T? > > Why use a partition table at all? run dd directly against the device. If this > is slow then you have a controller side problem. very true, back to "Go" :( Peter Kjellstrom Sent by: centos-boun...@centos.org 07/14/2010 01:39 PM Please respond to CentOS mailing list To centos@centos.org cc Subject Re: [CentOS] GPT Partitions >2.2T with Centos 5.5 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Multipathing with Sun 7310
Dear list, we have a relatively new Sun Storage 7310, where we connect CentOS 5.5 Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades boot from SAN via qla2xxx, and have no harddisks at all. We want them to use multipathing from the very beginning, so /boot and / are already seen by multipathd. Problem is, that the Sun 7310 has two storage heads which run in active/passive mode. BUT the multipathd thinks, they are active/active and therefor shows half the available paths as faulty (multipath -ll below) While this probably gives me the redundancy that is desired, it is a relatively messy situation, since it will be unnecessary hard to detect real path failures and the OS is complaining about "readsector0 checker reports path is down" which gives me >40M/24h /var/log/messages garbage. Any hints for a reasonable configuration? Unfortunately the Sun 7310 is rather new, so almost nothing shows up on google... even less for RHEL/CentOS :-( regards from Berlin Jens [r...@dev-db1 tmp]# multipath -ll sdaa: checker msg is "readsector0 checker reports path is down" sdab: checker msg is "readsector0 checker reports path is down" sdac: checker msg is "readsector0 checker reports path is down" sdad: checker msg is "readsector0 checker reports path is down" sdd: checker msg is "readsector0 checker reports path is down" sdh: checker msg is "readsector0 checker reports path is down" sdl: checker msg is "readsector0 checker reports path is down" sdp: checker msg is "readsector0 checker reports path is down" sdq: checker msg is "readsector0 checker reports path is down" sdr: checker msg is "readsector0 checker reports path is down" sds: checker msg is "readsector0 checker reports path is down" sdt: checker msg is "readsector0 checker reports path is down" sdu: checker msg is "readsector0 checker reports path is down" sdv: checker msg is "readsector0 checker reports path is down" sdx: checker msg is "readsector0 checker reports path is down" sdz: checker msg is "readsector0 checker reports path is down" mpath0 (3600144f0fdf58b5c4bc738070001) dm-0 SUN,Sun Storage 7310 [size=50G][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=1][active] \_ 0:0:1:0 sda 8:0[active][ready] \_ round-robin 0 [prio=1][enabled] \_ 1:0:0:0 sde 8:64 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:2:0 sdi 8:128 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 1:0:1:0 sdm 8:192 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 0:0:3:0 sdq 65:0 [failed][faulty] \_ round-robin 0 [prio=0][enabled] \_ 1:0:2:0 sdr 65:16 [failed][faulty] \_ round-robin 0 [prio=0][enabled] \_ 0:0:4:0 sdx 65:112 [failed][faulty] \_ round-robin 0 [prio=0][enabled] \_ 1:0:3:0 sdz 65:144 [failed][faulty] ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multipathing with Sun 7310
Hi Alexander, thanks for replying, here's my current multipath.conf: defaults { user_friendly_names yes } blacklist { devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*" devnode "^(hd|xvd|vd)[a-z]*" wwid "*" } blacklist_exceptions { wwid "3600144f0fdf58b5c4bc738070001" devices{ device { vendor "SUN" product "Sun Storage 7310" } } } devices { device { vendor "SUN" product "Sun Storage 7310" path_grouping_policy failover getuid_callout "/sbin/scsi_id -g -u -s /block/%n" prio_callout "/sbin/mpath_prio_rdac /dev/%n" features "0" failback immediate rr_weight uniform no_path_retry queue rr_min_io 1000 } } I added "path_grouping_policy failover" because of your message. I also noticed, you have path_grouping_policy specified twice; is this on purpose? Also, when I activate 'hardware_handler "1 rdac"', the box does not boot any more with some rdac driver error message that I can catch since it scrolls by fast... with the above multipath.conf it gets even stranger: [r...@dev-db1 ~]# multipath -ll sdd: checker msg is "readsector0 checker reports path is down" sdh: checker msg is "readsector0 checker reports path is down" sdi: checker msg is "readsector0 checker reports path is down" sdj: checker msg is "readsector0 checker reports path is down" C9 Inquiry of device failed. C9 Inquiry of device failed. mpath0 (3600144f0fdf58b5c4bc738070001) dm-0 SUN,Sun Storage 7310 [size=50G][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=0][active] \_ 0:0:1:0 sda 8:0 [active][ready] \_ 1:0:0:0 sde 8:64 [active][ready] however, the system "lives happily", despite the error messages. Jens Neu Health Services Network Administration Phone: +49 (0) 30 68905-2412 Mail: jens@biotronik.de "Alexander Dalloz" Sent by: centos-boun...@centos.org 05/27/2010 04:47 PM Please respond to CentOS mailing list To "CentOS mailing list" cc Subject Re: [CentOS] Multipathing with Sun 7310 > Dear list, > > we have a relatively new Sun Storage 7310, where we connect CentOS 5.5 > Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades > boot from SAN via qla2xxx, and have no harddisks at all. We want them to > use multipathing from the very beginning, so /boot and / are already seen > by multipathd. Problem is, that the Sun 7310 has two storage heads which > run in active/passive mode. BUT the multipathd thinks, they are > active/active and therefor shows half the available paths as faulty > (multipath -ll below) > While this probably gives me the redundancy that is desired, it is a > relatively messy situation, since it will be unnecessary hard to detect > real path failures and the OS is complaining about "readsector0 checker > reports path is down" which gives me >40M/24h /var/log/messages garbage. > Any hints for a reasonable configuration? Unfortunately the Sun 7310 is > rather new, so almost nothing shows up on google... even less for > RHEL/CentOS :-( > > regards from Berlin > Jens > > [r...@dev-db1 tmp]# multipath -ll > sdaa: checker msg is "readsector0 checker reports path is down" > sdab: checker msg is "readsector0 checker reports path is down" > sdac: checker msg is "readsector0 checker reports path is down" > sdad: checker msg is "readsector0 checker reports path is down" > sdd: checker msg is "readsector0 checker reports path is down" > sdh: checker msg is "readsector0 checker reports path is down" > sdl: checker msg is "readsector0 checker reports path is down" > sdp: checker msg is "readsector0 checker reports path is down" > sdq: checker msg is "readsector0 checker reports path is down" > sdr: checker msg is "readsector0 checker reports path is down" > sds: checker msg is "readsector0 checker reports path is down" > sdt: checker msg is "readsector0 checker reports path is down" > sdu: checker msg is "readsector0 checker reports path is down" > sdv: checker msg is "readsector0 checker reports path is down" > sdx: checker msg is "readsector0 checker reports path is down" > sdz: checker msg is "readsector0 checker reports path is down" > mpath0 (3600144f0fdf58b5c4bc738070001) dm-0 SUN,Sun Storage 7310 > [size=50G][features=0][hwhandler=0][rw] &g
Re: [CentOS] Multipathing with Sun 7310
Alexander, thank you very much, you're the man! best regards from Berlin Jens Neu Health Services Network Administration "Alexander Dalloz" Sent by: centos-boun...@centos.org 05/28/2010 04:29 PM Please respond to CentOS mailing list To "CentOS mailing list" cc Subject Re: [CentOS] Multipathing with Sun 7310 Ah, while coming to an end with this mail and considering to check upstream (http://christophe.varoqui.free.fr/) whether they know about your specific storage device, I found the infos you need to configure! wikis.sun.com/download/attachments/186238602/2010_Q1_ADMIN.pdf Page 107+108 gives you all required / SUN recommended settings: device { vendor "SUN" product "Sun Storage 7310" getuid_callout "/sbin/scsi_id -g -u -s /block/%n" prio_callout"/sbin/mpath_prio_alua /dev/%n" hardware_handler"0" path_grouping_policygroup_by_prio failbackimmediate no_path_retry queue rr_min_io 100 path_checkertur rr_weight uniform } I guess ALUA is enabled by default on the SUN storage 7310, but check it. > Jens Neu > Health Services Network Administration Regards Alexander ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] SUN Storage 7310 with RHEL 5.5 / Centos 5.5 and multipathed root, again.
Dear all, After some trouble finding the right multipath.conf, I'm running Centos 5.5 against the SUN 7310 more or less successfully now. Unfortunately one issue remains: the SUN 7310 has two storage heads, H1 and H2, which are in a active/passive configuration. If I define a LUN on H1, everything works great. I edit multipath.conf, re-create the initrd and I find 8 paths with active/ready and active/ghost: mpath0 (3600...0001) dm-0 SUN,Sun Storage 7310 [size=50G][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=200][active] \_ 0:0:0:0 sda 8:0 [active][ready] \_ 0:0:1:0 sdd 8:48 [active][ready] \_ 1:0:0:0 sdg 8:96 [active][ready] \_ 1:0:1:0 sdj 8:144 [active][ready] \_ round-robin 0 [prio=4][enabled] \_ 1:0:2:0 sdm 8:192 [active][ghost] \_ 0:0:2:0 sdn 8:208 [active][ghost] \_ 1:0:3:0 sds 65:32 [active][ghost] \_ 0:0:3:0 sdt 65:48 [active][ghost] Thing is: as soon as I set up a machine with the LUN(s) on the second head, all works well until I want to boot with the freshly created initrd/multipath.conf. System hangs with Kernel Panic, "Creating multipath devices... no devices found" and "mount: could not find filesystem '/dev/root'". Workaround: when I remove the paths to the passive ("ghost paths") Storage head in the SAN Fabric, the system boots fine and I can re-enable the paths when the kernel is up. The paths become [active][ghost] as wished after some time when they show up in the FC Zoning. This smells like broken mkinitrd to me. System is very up-to-date, Centos 5.5 Version below: [r...@dev-db3 ~]# yum list device-mapper-multipath Installed Packages device-mapper-multipath.x86_640.4.7-34.el5_5.1installed [r...@dev-db3 ~]# uname -r 2.6.18-194.3.1.el5 Any suggestions? best regards from Berlin, Jens Neu Health Services Network Administration ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Package Distribution Server?
If you set up a big number of workstations (my pain shreshold woud probably be around 20), or if you have hard requirements that the workstations are really equal in patch level you should maybe consider a Spacewalk server: https://fedorahosted.org/spacewalk/ http://wiki.centos.org/HowTos/PackageManagement/Spacewalk regards Jens Neu Health Services Network Administration Zhihao Lou Sent by: centos-boun...@centos.org 06/04/2010 05:28 AM Please respond to CentOS mailing list To centos@centos.org cc Subject [CentOS] Package Distribution Server? Dear List, I'm trying to set up a lab with multiple workstations running CentOS 5. Does anybody knows how to keep the packages in sync among workstations? Ideally I want any change made on any machine be able to applied to all other machines. Alternatively, to "push" the changes (add and/or remove packages) from one central server to all other machine is also fine. Thanks Zhihao Lou P.S.: Sorry for the confusion subject line. I really don't know what's the accurate name for the feature I described here. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos