Re: [CentOS] Adding new Hard disk to server with RAID-5
#1.) It should just appear as unpartitioned space to the OS. You can then partition it and add that partition to one of your LVs, and then use the LVM and ext filesystem tools to grow your existing LV and then resize the filesystem to fit. Good articles on LVM: - http://kbase.redhat.com/faq/FAQ_96_4842.shtm - http://www.linux.com/base/ldp/howto/LVM-HOWTO/extendlv.html - http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html - http://www.netadmintools.com/art367.html Once you learn to use LVM to your advantage you will wonder how you ever got along without it. :) Especially when you start dealing with DAS and storage shelves, etc. - Chris On 22 Aug, 2008, at 7:35 PM, Lunix1618 wrote: Hi all, I have Dell 2950 III with RAID-5 installed and managed by hardware Raid controller, I also use LVM when install CentOS. Now I get more 03 Hard disk and I would like to add it in to the running system. My question is: 1) if new hard disks add in to the machine, I have to rebuild the RAID volume with RAID management (raid controller) and the volume will be expanded, but is that make any problem to LVM at OS level ? 2) if (1's) answer is YES, what I need to do to prevent trouble occur ? If any one exprience or know the place can help me start pls share. Sorry for the dumb question but I never did this before as a newbie Linux admin - I am 'handmade' formerWindows admin Thanks for your help. regards. ___ 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
Re: [CentOS] Yum
Hmm, it should be there no matter what, even if you deselect all the package groups on install. Should be at /usr/bin/yum. On 5 Aug, 2008, at 10:01 AM, Mohsen Pahlevanzadeh wrote: Dear All, When i install CentOS, it doesn't install yum package. How i do it? when i haven't yum, it is like that i haven't apt-get. Please help me Yours, Mohsen ___ 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
Re: [CentOS] Whole disk encryption
I think TrueCrypt (www.truecrypt.org) will do this. On 4 Aug, 2008, at 8:51 AM, Plant, Dean wrote: Has there been any updates to support encrypting the whole disk in 5.2? If not, Is anyone doing this and can point me to some good documentation? Thanks Dean ___ 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
Re: [CentOS] Using CentOS 5 as server; best way to setup NFSv4?
I would second OpenLDAP, having used it in production at two different employers. It's always been stable and reliable. If you're restarting slapd every 15 minutes I'd take a good hard look at the problem versus just migrating away from it. On that note, we recently migrated to Active Directory from OpenLDAP, primarily because we migrated from Zimbra 4.5 to Exchange (and Exchange requires AD). It wasn't without much kicking and screaming, but in the end it was the best move for our users. The tricky part was switching Linux systems which had been authenticating reliably and smoothly to OpenLDAP to using Winbind instead (primarily because of AD group support). Even though it largely works, I would say that in a large production environment I prefer OpenLDAP for centralized authentication over AD, especially since we're a predominately Linux/ UNIX environment. - Chris On 1 Aug, 2008, at 5:47 PM, Craig White wrote: On Fri, 2008-08-01 at 17:33 -0700, nate wrote: I personally don't like LDAP(after having used it for many years now). I do use it at home, though only two of the 6 systems I have are actually using it(I also use it for mail routing but that is a legacy thing I setup 7 years ago that I haven't gotten around to migrating off of). I'm in the slow process of migrating my company's systems off of LDAP, they are using it for authentication and it's horribly unreliable and I hate that single point of failure and the complexity of setting it up and maintaining it. They have a cron script that restarts the LDAP services every 15 minutes and they restart nscd on all of the servers every hour. And still even I get complaints on occasion about not being able to login and I have to go restart nscd again or at least invalidate the nscd passwd cache (nscd -i passwd). LDAP is as stable as anything I've ever used but I have to admit that I don't use nscd anywhere because I would suspect, that is what is killing you. I stopped using nscd when I went to LDAP for that reason. It's not uncommon for my primary LDAP servers to have uptimes of over 9 months and never restarting though Red Hat made a curious choice of using sleepy-cat 4.3 on RHEL 5 which is totally not recommended by OpenLDAP developers. http://www.openldap.org/faq/data/cache/44.html I suppose if you wanted to have a stable LDAP, you would investigate with the developers of OpenLDAP. Craig ___ 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
Re: [CentOS] DVI + VGA?
If they're both the same output (i.e. not individual outputs, but just different media options) then I'd say yes. But if they are distinct outputs (say for a multi-monitor setup) then one may be display #1 and the other #2. If it's integrated video on your motherboard there may be options in your BIOS, but if it's an add-on card then maybe consult the manufacturer's website. On 1 Aug, 2008, at 3:40 PM, MHR wrote: I have an LCD monitor with both VGA and DVI connectors on it, and a video card to match (both connectors). If I want to switch from the VGA (currently in use) to the DVI, do I need to do anything special other than switch wires? I didn't see anything in google that was helpful (though I may not have used a smashing search...). Thanks. mhr ___ 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
Re: [CentOS] system hibernating?
Hmm, I'm never encountered this myself. Could it be BIOS power management settings? - Chris On 24 Dec, 2007, at 8:58 AM, Jeffrey Ross wrote: I'm in the process of setting up a new system and I have found that the system is hibernating when its sitting idle for a long period of time. How do I stop this? TIA, Jeff ___ 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
