Perhaps if you also modified MAX_REAL in the md_k.h file to 15, it will like more
than 12. This value is only used by raid0.
<>< Lance.
[EMAIL PROTECTED] wrote:
> i tried this but mkraid still gives the same error of "a maximum of 12
> disks is supported."
> i set MD_SB_DISKS_WORDS to 480 to give me 15 disks.
> does anyone have more detailed instructions?
>
> looking in parser.c i see where that should have worked, but i guess i'm
> missing something. it parses down to /dev/hdn which is my 13th disk and
> then gives the error, so somehow MD_SB_DISKS is still 12 not 15. weird.
> i did a "make install" for raidtools and verified that it updated the
> binaries.
>
> On Tue, 29 Feb 2000, TAKAMURA Seishi wrote:
>
> > Dear Eldon,
> >
> > You seem to use RAID0, and I use RAID5, so just FYI. I changed both
> > kernel code and raidtool code to increase disk limit. Quick and dirty
> > way (which I did) is modify MD_SB_DISKS_WORDS appropriately in the
> > following two header files.
> > raidtools-0.90/md-int.h
> > linux/include/linux/raid/md_p.h
> > (MD_SB_DISKS_WORDS/32 = maximum drive number)
> >
> > With this modification, I am now using an array with 24 disks(1.0TB).
> >
> > >>>>> On Mon, 28 Feb 2000 16:52:16 -0600 (CST)
> > >>>>> [EMAIL PROTECTED] said:
> > >
> > >
> > > I've been told (by Jakob) that the limit of 12 disks per md device is just
> > > a typo in the code. I'm trying to make a 14-drive linear array. I tried
> > > changing MAX_REAL from 12 to 14 in md_k.h (and then even recompiled
> > > raidtools) but mkraid still complains about the limit being 12. is there
> > > any way around this (safely)?
> > >
> > > ps i also tried nesting 2 md's inside one....locked up the machine, so i
> > > don't feel good about that approach.
> > >
> > > i'm using 2.2.15
> > >
> > > Eldon
> >
> > Seishi Takamura, Dr.Eng.
> > NTT Cyber Space Laboratories
> > Y922A 1-1 Hikarino-Oka, Yokosuka, Kanagawa, 239-0847 Japan
> > Tel: +81-468-59-2371, Fax: +81-468-59-2829
> > E-mail: [EMAIL PROTECTED]
> >
