From: E.I. Kennedy (erikiken@YAHOO.COM)
Date: Thu Feb 05 2004 - 19:18:50 EST
I think the post in question dealt with a past issue.
I've seen pretty good performance with the -P flag.
[Incidentally, I know Kevin Gee, and he is still on
this list. It shouldn't be too hard to figure out
what his handle is.]
Erik
--- "Green, Simon" <Simon.Green@EU.ALTRIA.COM> wrote:
> I've run parallel syncvgs in the past and it has
> saved me time. I'm not
> sure about this VGDA problem: it hasn't affected me
> before. I've tended to
> do "syncvg -l" rather than "syncvg -p", though;
> maybe that makes a
> difference, although it seems unlikely.
>
> My main interest in the "-P" flag is simplicity: I
> could just run one
> command rather than have to analyse how the disks
> are connected and then run
> several different commands.
>
> --
> Simon Green
> Altria ITSC Europe Ltd
>
> 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: Holger.VanKoll@SWISSCOM.COM
> [mailto:Holger.VanKoll@SWISSCOM.COM]
> > Sent: 05 February 2004 11:47
> > To: aix-l@Princeton.EDU
> > Subject: Re: Running syncvg in parallel using -P
> flag
> >
> >
> > maybe useful reading
> >
> >
>
http://groups.google.ch/groups?hl=de&lr=&ie=UTF-8&oe=UTF-8&sel
> > m=35522AE7
> > .3E92B2D8%40cse.uta.edu
> >
> > too bad Kevin Gee isnt on this list anymore
> >
> > if its true that the vgda on every disk is touched
> for every
> > synced LP,
> > then -P could avoid it by updating it for every
> "NumParallelLps" LPs
> >
> >
> > -----Original Message-----
> > From: Green, Simon
> [mailto:Simon.Green@EU.ALTRIA.COM]
> > Sent: Thursday, February 05, 2004 12:00 PM
> > To: aix-l@Princeton.EDU
> > Subject: Running syncvg in parallel using -P flag
> >
> >
> > I'll have to re-synchronise an entire volume group
> on Sunday and I'd
> > like to
> > minimise the elapsed time.
> > Does anyone know how smart the "-P" option is?
> > There doesn't seem much point in using it if it
> will lead to multiple
> > partitions on a single disk being synchronised in
> parallel.
> > Would I be
> > better off doing multiple "syncvg -l"s in
> parallel, so that I can
> > control
> > which disks are being operated on?
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