Discuss April 2011

discuss@lists.centos.org

312 participants
282 discussions

[OT] ups advice
by admin lewis 15 Apr '11

15 Apr '11

Hi I have a Dell PowerEdge T310 *tower* server.. I have to buy an ups by apc... anyone could help me giving an hint ? a simple "smart ups 1000" could be enough ? thx so much!! lewis.

12 22

php53 and MSSQL
by John Beranek 15 Apr '11

15 Apr '11

[Reposted now I've joined the list, so I hopefully don't get moderated out] Hi, I've upgraded lots of machines to 5.6 (thanks!) and there was one particular machine that I'd also like to upgrade to PHP 5.3. Unfortunately it seems I can't. On the machine I have php-mssql installed, and it appears that there is no php53-mssql. php-mssql is built from the php-extras SRPM, so is there going to be a php53-extras SRPM? I've checked upstream, and they also don't have a php53-mssql package, so if there _were_ to be solved it'd have to be in the 'Extras' repository I guess... Cheers, John. -- John Beranek To generalise is to be an idiot. http://redux.org.uk/ -- William Blake

2 3

php53 and mcrypt
by Geoff Galitz 15 Apr '11

15 Apr '11

More PHP fun! I can see in the spec files that php-mcrypt support was removed by Redhat. I tried to find out why but I don't have sufficient access to redhat bugzilla. I am wondering if it is actually necessary as I have also run across a post or two that indicates applications that rely on mcrypt still work with the new php53. Perhaps mcrypt was superceded by another module or PHP core code?

3 2

php53 and eacclerator
by Geoff Galitz 15 Apr '11

15 Apr '11

Hi. There does not seem to be a php53-eaccelerator in standard Centos yum channels, from what I can see. That is a mainstay for us. Has anyone found that any particular php53-eacclerator from other locations play well with it? Thanks.

5 6

Expanding RAID 10 array, WAS: 40TB File System Recommendations
by Emmanuel Noobadmin 15 Apr '11

15 Apr '11

On 4/13/11, Rudi Ahlers <Rudi(a)softdux.com> wrote: >> to expand the array :) > > I haven't had problems doing it this way yet. I finally figured out my mistake creating the raid devices and got a working RAID 0 on two RAID 1 arrays. But I wasn't able to add another RAID 1 component to the array with the error mdadm: add new device failed for /dev/md/mdr1_3 as 2: Invalid argument Googling up this indicates that it's the expected result trying to add a new device to a RAID 0 array. Could you or anybody else please share what's the trick to achieving this?

7 17

CentOS on SSDs...
by John Doe 15 Apr '11

15 Apr '11

Hi, I was just wondering if there are specific steps to take to install CentOS on SSDs... By example, no swap partition? Format with a flash fs? Sysctl parameters? Thx, JD

5 5

speed-tuning samba?
by Les Mikesell 15 Apr '11

15 Apr '11

What's the current state of the art with this black magic? It looks like there are a vast number of tuning options and the ones that typically show up in advice are: socket options = TCP_NODELAY IPTOS_LOWDELAY read raw = yes write raw = yes oplocks = yes max xmit = 65535 dead time = 15 getwd cache = yes some of which may be the defaults anyway. One thing in particular that I'd like to make faster is access to a set of libraries (boost, etc.) that are in a directory mapped by several windows boxes (mostly VM's on different machines)used as build servers. -- Les Mikesell lesmikesell(a)gmail.com

2 1

Xorg
by Michel Donais 15 Apr '11

15 Apr '11

For a few days I can't boot a server in graphical mode. The screen goes black and a have a CUI login. I can login a user and at this point 'startx' get the graphical interface up in /etc/inittab/ x: 5:respawn: /etc.X11/prefdm -nodaemon and xdmcp is alivre On this server we have 12 stations drived by LTSP as a terminal server. We can boot the stations to a point where the X graphical interface doesn't come up and the terminal stays with a grey screen with a big X in the center. Do somebody can drive me to a solution? --- Michel Donais

1 0

Re: [CentOS] 40TB File System Recommendations
by John Jasen 15 Apr '11

15 Apr '11

One was 32 bit, the other 64 bit. Christopher Chan <christopher.chan(a)bradbury.edu.hk> wrote: >On Thursday, April 14, 2011 07:26 AM, John Jasen wrote: >> On 04/12/2011 08:19 PM, Christopher Chan wrote: >>> On Tuesday, April 12, 2011 10:36 PM, John Jasen wrote: >>>> On 04/12/2011 10:21 AM, Boris Epstein wrote: >>>>> On Tue, Apr 12, 2011 at 3:36 AM, Alain Péan >>>>> <alain.pean(a)lpp.polytechnique.fr >>>>> <mailto:alain.pean@lpp.polytechnique.fr>> wrote: >>>> >>>> <snipped: two recommendations for XFS> >>>> >>>> I would chime in with a dis-commendation for XFS. At my previous >>>> employer, two cases involving XFS resulted in irrecoverable data >>>> corruption. These were on RAID systems running from 4 to 20 TB. >>>> >>>> >>> >>> What were those circumstances? Crash? Power outage? What are the >>> components of the RAID systems? >> >> One was a hardware raid over fibre channel, which silently corrupted >> itself. System checked out fine, raid array checked out fine, xfs was >> replaced with ext3, and the system ran without issue. >> >> Second was multiple hardware arrays over linux md raid0, also over fibre >> channel. This was not so silent corruption, as in xfs would detect it >> and lock the filesystem into read-only before it, pardon the pun, truly >> fscked itself. Happened two or three times, before we gave up, split up >> the raid, and went ext3, Again, no issues. > >32-bit kernel by any chance? >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos

1 0

Re: [CentOS] [OT] ups advice
by Brent L. Bates 14 Apr '11

14 Apr '11

apcupsd doesn't work with new APC UPS's. APC has changed to some proprietary protocol, microlink?, for talking to their UPS's, so apcupsd doesn't work any more or at least not fully. There has been some discussion about this issue on the apcupsd users email list.

1 0

← Newer
1
...
10
11
12
13
14
15
16
...
29
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss April 2011