Re: Does solaris require disks to be zeroed before using
From: Keg (rhugga_at_yahoo.com)
Date: 09/29/04
- Next message: Greg Andrews: "Re: kernel usage 99%"
- Previous message: Keg: "Re: kernel usage 99%"
- In reply to: Beardy: "Re: Does solaris require disks to be zeroed before using"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: 29 Sep 2004 14:40:57 -0700
Beardy <beardy@beardy.net> wrote in message news:<4155859e$0$69731$ed2619ec@ptn-nntp-reader01.plus.net>...
> Chris Newport wrote:
> > On Saturday 25 September 2004 7:17 am in comp.sys.sun.admin Beardy wrote:
> >
> >
> >>>The only case where Solaris needs a disk to be zeroed is
> >>>where an IDE disk has been installed on a system/OS version
> >>>which does not support large drives. In this case only the
> >>>boot block needs to be zeroed.
> >>>This was a common issue with the Ultra5/10 when a user installed
> >>>a large disk which was not correctly recognised.
> >>>
> >>
> >>Chris, I'm curious - didn't they just patch/upgrade the OS to support
> >>the large disk? I can't see how zeroing the boot block would help...
> >
> >
> > When you first initialise a disk, format writes a disk label to
> > cylinder zero. The size of the disk is contained in the label and
> > is believed from that point.
> >
> > This means that if you first initialise a disk with a version
> > of solaris which does not support large IDE drives the disk will
> > be recognised as being too small, even if you re-install the
> > correct version of solaris.
>
> The phrase "as being too small" fooled me for a while, but is what you
> mean "as being of an incorrect size, thus losing capacity available on
> the drive"?
>
> >
> > The only cure is to zero the disk label with dd and start again
> > using the correct solaris version.
> >
>
> If the answer to me previous question is "yes", then I understand;
> otherwise it must be Saturday.....
>
> Thanks.
It's also a good idea to do this if you move a disk that was under
veritas controll previously to another system running veritas. In the
past there have been issues with doing this.
-rhugga
- Next message: Greg Andrews: "Re: kernel usage 99%"
- Previous message: Keg: "Re: kernel usage 99%"
- In reply to: Beardy: "Re: Does solaris require disks to be zeroed before using"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
