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RAID 5 vs. RAID 10
by Andrew Vong 25 Jul '05

25 Jul '05

Hi, I am looking into purchasing a new server. This server will be mission-critical. I have read and somewhat understood the theories behind RAIDs 0, 1, 5, 10 & JBOD. However, I would like to get some feedback from those who have experience in implementing and recovering from a HDD failure using RAID. Hardware specs include:- Dual Xeon 3.2 GHz 2 GB RAM I would like to implement hardware RAID but am unsure as to which would be most suitable for my needs. Any advice is appreciated. Option 1 - RAID 5 (3 hdd's) + 1 hot spare Option 2 - RAID 10 (4 hdd's) + 1 "cold" spare (in the shelf) Questions I have :- 1) When should RAID 5 be implemented? 2) When should RAID 10 be implemented? 3) Is RAID 5 with a hot spare safer than RAID 10 with a "cold" spare? 4) Is it possible to configure RAID 10 to have a hot spare? 5) Should one of the HDDs fail, a hot spare w kick-in immediately and begin rebuilding. As I am planning to put in 300 GB HDDs, how long would this take on a RAID 5 vs. RAID 10? 6) Will there be a degradation in performance for users on the system (RAID 5 vs. RAID 10)? 7) What are the disadvantages of using RAID 5 vs. RAID 10? Thanks in advance for answering my questions. Best Regards, Andrew

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CentOS-announce Digest, Vol 5, Issue 11
by centos-announce-request＠centos.org 25 Jul '05

25 Jul '05

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2005:587 Important CentOS 3 s390(x) mozilla - security update (Pasi Pirhonen) 2. CentOS-4.1 s390(x) Release Announcement (Pasi Pirhonen) 3. CESA-2005:587-01: Important CentOS 2 i386 mozilla security update (John Newbigin) 4. CESA-2005:582 Moderate CentOS 3 i386 httpd - security update (Tru Huynh) 5. CESA-2005:582 Moderate CentOS 3 x86_64 httpd - security update (Tru Huynh) 6. CESA-2005:640 Important CentOS 3 i386 fetchmail - security update (Tru Huynh) 7. CESA-2005:640 Important CentOS 3 x86_64 fetchmail - security update (Tru Huynh) 8. CESA-2005:640 Important CentOS 4 i386 fetchmail - security update (Johnny Hughes) 9. CESA-2005:640 Important CentOS 4 x86_64 fetchmail - security update (Johnny Hughes) 10. CESA-2005:582 Moderate CentOS 4 x86_64 httpd - security update (Johnny Hughes) 11. CESA-2005:582 Moderate CentOS 4 i386 httpd - security update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Sun, 24 Jul 2005 15:59:30 +0300 From: Pasi Pirhonen <upi(a)papat.org> Subject: [CentOS-announce] CESA-2005:587 Important CentOS 3 s390(x) mozilla - security update To: centos-announce(a)centos.org Message-ID: <20050724125930.GF1134(a)core.upi.iki.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2005:587 https://rhn.redhat.com/errata/RHSA-2005-587.html The following updated files have been uploaded and are currently syncing to the mirrors: s390: updates/s390/RPMS/mozilla-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-chat-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-devel-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-dom-inspector-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-js-debugger-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-mail-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-nspr-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-nspr-devel-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-nss-1.7.10-1.1.3.1.centos3.s390.rpm updates/s390/RPMS/mozilla-nss-devel-1.7.10-1.1.3.1.centos3.s390.rpm s390x: updates/s390x/RPMS/mozilla-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-chat-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-devel-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-dom-inspector-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-js-debugger-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-mail-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-nspr-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-nspr-devel-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-nss-1.7.10-1.1.3.1.centos3.s390x.rpm updates/s390x/RPMS/mozilla-nss-devel-1.7.10-1.1.3.1.centos3.s390x.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://iki.fi/upi/

1 0

CentOS 4 snag with htaccess
by John Hinton 25 Jul '05

25 Jul '05

I'm hitting a snag with htaccess. Have created .htaccess and .htpasswd files, set up apache directory options just like always... the exact same setup works fine on CentOS 3, but I can't seem to get it to authenticate on CentOS 4? Am I just being blind stupid (as in not seeing something 'exactly the same') or is there something different I'm missing? I have selinux running in warn mode I think it was, but not fully enabled. Best, John Hinton

3 5

Open Office 1.9.x
by Mark Jarvis 24 Jul '05

24 Jul '05

Having used Open Office 1.9.x on the XP side of my box, I decided to install it on the CentOS side. (The default OO was 1.1.2, for heaven's sake!) I downloaded the Linux 386 version from the OO site. I immediately ran into problems-- 1) The installation instructions were for OO 1.x. 2) The download appears to be source RPMs. Although I've used UNIX & Linux for over 15 years, there are still some empty spots in my toolbox--and dealing with RPMs in one of them. (YUM is SO much nicer!) Has anyone added OO1.9.113 to CentOS? Where can I find info on what I need to do to get OO1.9.x added to my CentOS installation? Any help will be much appreciated! -mj-

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Centos 4.1, ClamScan and Kernel Leaks
by Bill Diamond 24 Jul '05

24 Jul '05

I recently installed ClamAV on my Centos 4.1 system (AMD Athlon 64 3500 +, 1GB RAM). I'm using postfix, with fetchmail to retrieve email from remote ISP accounts and processing emai through a spamfilter plugin, which is a shell script that passes inbounds through clamscan and spamassassin before handing it off to a local procmail for processing and delivery. Pror to installing ClamAV, the system stayed up for months at a time. Since then, I'm seeing a lot of system freezes and crashes, at least once per day. I'm also seeing a fair number of complaints in the boot log about ACPI errors and the like. I'm on kernel 2.6.9-11.EL. In the messages log, I can see where just prior to the system freeze, there are a sequence of messages regarding the system's inability to reset the USB adapter, of which no devices are attached. Almost immediately after, I see errors with the system gets error messages on read capacity on the hard drives. After this appears to reset itself, I start seeing kernel messages about available memory dropping from 1GB to less than 1MB. Any suggestions/advice? Thanks, Bill -- Bill Diamond <bill(a)billdiamond.com>

1 0

CentOS-announce Digest, Vol 5, Issue 10
by centos-announce-request＠centos.org 24 Jul '05

24 Jul '05

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2005:586 Important CentOS 4 x86_64 firefox - security update (Johnny Hughes) 2. CESA-2005:586 Important CentOS 4 i386 firefox - security update (Johnny Hughes) 3. CESA-2005:378 Low CentOS 3 x86_64 cpio - security update (Johnny Hughes) 4. CESA-2005:378 Low CentOS 3 i386 cpio - security update (Johnny Hughes) 5. CESA-2005:378 Low CentOS 4 i386 cpio - security update (Johnny Hughes) 6. CESA-2005:378 Low CentOS 4 x86_64 cpio - security update (Johnny Hughes) 7. CESA-2005:584 Important CentOS 4 i386 zlib - security update (Johnny Hughes) 8. CESA-2005:584 Important CentOS 4 x86_64 zlib - security update (Johnny Hughes) 9. CESA-2005:601 Important CentOS 4 i386 thunderbird - security update (Johnny Hughes) 10. CESA-2005:601 Important CentOS 4 x86_64 thunderbird - security update (Johnny Hughes) 11. CESA-2005:639 Critical CentOS 4 i386 kdenetwork - security update (Johnny Hughes) 12. CESA-2005:639 Critical CentOS 4 x86_64 kdenetwork - security update (Johnny Hughes) 13. CEBA-2005:0723-001 Low CentOS 4 i386 up2date/rhn-applet bugfix announcement (Johnny Hughes) 14. CEBA-2005:0723-001 Low CentOS 4 x86_64 up2date/rhn-applet bugfix announcement (Johnny Hughes) 15. CESA-2005:587 Important CentOS 4 x86_64 mozilla - security update (Johnny Hughes) 16. CESA-2005:587 Important CentOS 4 i386 mozilla - security update (Johnny Hughes) 17. CESA-2005:587 Important CentOS 3 ia64 mozilla - security update (Pasi Pirhonen) 18. CESA-2005:587 Important CentOS 3 i386 mozilla - security update (Tru Huynh) 19. CESA-2005:587 Important CentOS 3 x86_64 mozilla - security update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Sat, 23 Jul 2005 07:26:55 -0500 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2005:586 Important CentOS 4 x86_64 firefox - security update To: CentOS-Announce <centos-announce(a)centos.org> Message-ID: <1122121615.14164.17.camel(a)myth.home.local> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2005:586 https://rhn.redhat.com/errata/RHSA-2005-586.html The following updated files have been uploaded and are currently syncing to the mirrors: x86_64: firefox-1.0.6-1.4.1.x86_64.rpm src: firefox-1.0.6-1.4.1.src.rpm

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Re: [CentOS-announce] CEBA-2005:0723-001 Low CentOS 4 i386 up2date/rhn-applet bugfix announcement
by Maciej Żenczykowski 23 Jul '05

23 Jul '05

> Note: These packages no longer track upstream releases Hi, Could you explain that (in like two sentences)? Thanks, MaZe.

2 1

CentOS-announce Digest, Vol 5, Issue 9
by centos-announce-request＠centos.org 23 Jul '05

23 Jul '05

1 0

N/A
by lists 23 Jul '05

23 Jul '05

Hi there - I was wondering - is there a way to add a group to be a member of another group. I am setting up a samba server and the client site has a need for many different permissions on many subfolders -- so this seems to be the logical way. Thanks in advance! d

2 1

CentOS-announce Digest, Vol 5, Issue 8
by centos-announce-request＠centos.org 22 Jul '05

22 Jul '05

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