[linux-lvm] Re: can't pvcreate more than 64 dasds on Linux/390

[stingtaogiga]

I don't know if that patch is the key....
I also heard that the kernel level(2.2.19) I use has already supported
dynamic major number...
Actually, I can format and mount those disk with major number 254
individually all right. Just couldn't pvcreate with them.
Any other advise?

----- Original Message -----
From: "Heinz J . Mauelshagen" <mauelshagen at sistina.com>
To: "stingtaogiga" <stingtao at giga.net.tw>
Cc: <mge at sistina.com>
Sent: Sunday, October 21, 2001 8:13 PM
Subject: Re: can't pvcreate more than 64 dasds on Linux/390


> On Sun, Oct 21, 2001 at 04:10:02AM +0800, stingtaogiga wrote:
> > Dear sir,
> >     I am using lvm-0.9.1_beta7-1 with TurboLinux6.5(2.2.19) over IBM
> > mainframe S/390. I tried to pvcreate 200 dasds(disks) together, than
I'll
> > make them a vg, totally disk space around 500G.
> >     I can work with dasds whose major number is 94 (that is, 64 dasds in
> > total)all right. However, I fails to pvcreate those dasds whose major
number
> > is 253, 252.... The message is:
> >
> > [root at host96 block]# pvcreate /dev/dasdb[st]1
> > pvcreate -- invalid physical volume name "/dev/dasdbs1"
> >
>
> Well, there's a patch from IBM which should be in the LVM archives to
support
> dynamic additional major in order to work around this constraint.
>
> Not the future Linux 2.5 concept though, where minors won't be limited
> to 8 bit any longer. That's the way we want to support it BTW.
>
> >     I traced lvm kernel source and found that in
> > /usr/src/linux-2.2.19/include/linux/major.h, only dasd with major number
94
> > is defined. I think that's the reason pvcreate thought those dasds are
> > invalid. Would you advise how to get around this situation?
> >
> > ps. I am tring to subscribe to the mailing list but fails....that's why
I
> > send you email directly....
>
> Could you send mail to blutgens at sistina.com including the particular
problem
> dexription of your subscription try. He should be able to help you
> to get subscribed then.
>
> --
>
> Regards,
> Heinz    -- The LVM Guy --
>
> *** Software bugs are stupid.
>     Nevertheless it needs not so stupid people to solve them ***
>
>
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>
> Heinz Mauelshagen                                 Sistina Software Inc.
> Senior Consultant/Developer                       Am Sonnenhang 11
>                                                   56242 Marienrachdorf
>                                                   Germany
> Mauelshagen at Sistina.com                           +49 2626 141200
>                                                        FAX 924446
>
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