Re: Extending a JFSLOG.

From: Green, Simon (Simon.Green_at_EU.ALTRIA.COM)
Date: 02/24/05

  • Next message: Chafik,Basim: "Re: Extending a JFSLOG." 
    Date:         Thu, 24 Feb 2005 18:57:16 +0100
To: aix-l@Princeton.EDU

    There's no way of doing it online.
    You have to unmount all filesystems using that JFSLOG, then do an extendlv
    and a logform before re-mounting them. Obviously a bit of a problem if it's
    hd6!

    If there are lots of filesystems using it you might try creating a new
    JFSLOG for some of them. You still need to unmount those filesystems,
    though.

    Are you seeing errors for the JFSLOG? If not, it might not actually be a
    problem. 

    --
Simon Green
Altria ITSC Europe s.a.r.l.
AIX-L Archive at https://new-lists.princeton.edu/listserv/aix-l.html
New to AIX? http://publib-b.boulder.ibm.com/redbooks.nsf/portals/UNIX
N.B. Unsolicited email from vendors will not be appreciated.
Please post all follow-ups to the list.
> -----Original Message-----
> From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On
> Behalf Of MARLON BORBA
> Sent: 24 February 2005 17:17
> To: aix-l@Princeton.EDU
> Subject: Extending a JFSLOG.
>
>
> Is there a way to extend a JFSLOG?
> I have a volume group which has high activity and would like
> to increase the size of its JFSLOG in order to reduce the
> risk of that log becoming full.
  • Next message: Chafik,Basim: "Re: Extending a JFSLOG."

    Relevant Pages

    • Re: Sizing JFSLog
      ... If your filesystems are fairly static, then a single JFSlog will suffice. ... If you have high amounts of I/O to filesystems, then more may be in order. ... The system error log will tell you if there are JFSlog shortcomings. ... We were told 4 mb for each 2 gig of file system space. ...
      (AIX-L)
    • Re: Jfslog Recommendations
      ... filesystems they support: it's not a lot of use losing a disk and still ... having a good copy of the LV if the jfslog has gone kaput. ... > Subject: Jfslog Recommendations ...
      (AIX-L)
    • Re: JFS Log
      ... But to answer your actual question, yes, you can create a new jfslog on another ... drive and direct all your filesystems to it. ... You now have a valid second jfs log. ... I've got a failing disk which contains a jfslog for the volume group. ...
      (AIX-L)
    • Re: jfslog "closed/syncd" question
      ... your filesystems file to see if any filesystems use the log that you show ... > jfslog to be 'closed/syncd'. ... > problem associated with the drive where this jfslog is located. ... > blah# lsvg -l archivevg ...
      (AIX-L)