Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

Cpanel 64bit or 32bit PAE Kernal and 12GB RAM?? (CentOs/RedHat)

Discussion in 'General Discussion' started by vissa, Mar 9, 2008.

  1. vissa

    vissa Well-Known Member

    Joined:
    May 12, 2003
    Messages:
    46
    Likes Received:
    0
    Trophy Points:
    156
    I'm getting a new server with 12GB ram. It will run several large vbulletin forums (one at 2.5Mil posts) w/vbseo, a classifieds script, and some static websites. We use XCACHE php accelerator (which I understand does work in 64 bit). The server does a bit of everything (email, web, mysql, php, etc), but all sites are controlled by me and we don't allow access to cpanel/whm to anyone but me.

    Question: Is Cpanel finally ready for a 64bit OS? I will likely have CentOs 5 installed. I have been told by more than one datacenter that they recommend 32bit with PAE kernel for Cpanel w/12GB support. They claim that is more stable. I know there have been 64bit problems with Cpanel and/or updates in the past, but I *thought* those had been worked out. Can I get an official response here or one from people with actual experience?

    From what I understand, the limits of PAE kernel are some performance penalties for memory mapping (in addition to the 32bit vs 64 bit one), and programs can only each access 4GB at a time.. That's not a huge deal for most things, but it might be nice to have the option of allocating more than 4GB to mysql.

    Thank you!
     
    #1 vissa, Mar 9, 2008
    Last edited: Mar 9, 2008
  2. cPanelNick

    cPanelNick Administrator
    Staff Member

    Joined:
    Mar 9, 2015
    Messages:
    3,483
    Likes Received:
    31
    Trophy Points:
    158
    cPanel Access Level:
    DataCenter Provider
    cPanel should function just fine under either setup with CentOS (yum 64 bit works fine, up2date 64 bit has issues). 64 bit will require more memory, and the binaries will be larger.
     
    #2 cPanelNick, Mar 10, 2008
  3. vissa

    vissa Well-Known Member

    Joined:
    May 12, 2003
    Messages:
    46
    Likes Received:
    0
    Trophy Points:
    156
    Thanks. When you run Cpanel's updates, will it use YUM or up2date (on Centos)? I know on RedHat it uses up2date.
     
    #3 vissa, Mar 10, 2008
  4. rpmws

    rpmws Well-Known Member

    Joined:
    Aug 14, 2001
    Messages:
    1,824
    Likes Received:
    7
    Trophy Points:
    318
    Location:
    back woods of NC, USA
    i think both redhat el5 and centos5 use yum now.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #4 rpmws, Mar 10, 2008
  5. cPanelKenneth

    cPanelKenneth cPanel Development
    Staff Member

    Joined:
    Apr 7, 2006
    Messages:
    4,569
    Likes Received:
    45
    Trophy Points:
    308
    cPanel Access Level:
    Root Administrator
    That is correct.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #5 cPanelKenneth, Mar 10, 2008
  6. hekri

    hekri Well-Known Member

    Joined:
    Oct 14, 2003
    Messages:
    147
    Likes Received:
    2
    Trophy Points:
    168
    Hello i have new centos 5.2 relase i686 i386 but i see that system instal PAE kernel its ok for cPanel? In other centos 5.1 servers i see normal kernel without PAE.
     
    #6 hekri, Sep 19, 2008
(You must log in or sign up to post here.)
Loading...
Similar Threads - Cpanel 64bit 32bit
  1. KV Karia

    Does cPanel hardened kernel supports centOS 7 64bit

    KV Karia, Aug 22, 2017, in forum: Security
    Replies:
    5
    Views:
    630
    cPanelMichael
    Aug 31, 2017
  2. Wabun

    In Progress [CPANEL-23516] Use of undefined constant roundcube errors

    Wabun, Dec 9, 2018 at 12:56 AM, in forum: E-mail Discussion
    Replies:
    1
    Views:
    188
    cPanelMichael
    Dec 10, 2018 at 1:21 PM
  3. MHD_MUS

    cPanel mysql backup Error 1045

    MHD_MUS, Dec 7, 2018 at 6:38 PM, in forum: Database Discussion
    Replies:
    3
    Views:
    75
    cPanelLauren
    Dec 10, 2018 at 1:07 PM
  4. rudtek

    Add wp-cli to sub-cPanel accounts in WHM?

    rudtek, Dec 7, 2018 at 4:17 PM, in forum: General Discussion
    Replies:
    3
    Views:
    168
    cPanelLauren
    Dec 10, 2018 at 1:03 PM
  5. Raquib Shikder

    If I reset my router shall lost the access of my cPanel?

    Raquib Shikder, Dec 7, 2018 at 6:27 AM, in forum: General Discussion
    Replies:
    2
    Views:
    112
    cPanelLauren
    Dec 7, 2018 at 11:26 AM

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice