SVM (DiskSuite) suddenly stopped working

[Oliver Laumann]

We have just installed Solaris 9 on an Enterprise 450 and created
a DiskSuite mirror containing two stripe/concat metadevices.

The mirror works fine. However, at some point the meta tools
(e.g. metastat, metadetach) mysteriously stopped working:

# metastat
metastat: imh: Error 0

("imh" is the hostname of the machine). The messages in the syslog are:

krtld: [ID 826211 kern.notice] 'md_dkiocsetefi'
krtld: [ID 819705 kern.notice] /kernel/misc/sparcv9/md_sp: undefined symbol
krtld: [ID 826211 kern.notice] 'get_minfo'
krtld: [ID 819705 kern.notice] /kernel/misc/sparcv9/md_sp: undefined symbol
krtld: [ID 826211 kern.notice] 'md_bioclone'
krtld: [ID 819705 kern.notice] /kernel/misc/sparcv9/md_sp: undefined symbol
krtld: [ID 826211 kern.notice] 'md_getminor'
krtld: [ID 472681 kern.notice] WARNING: mod_load: cannot load module 'md_sp'

Several more symbols are flagged as undefined. Here is the relevant
modinfo output:

85 136fecc 2389e 85 1 md (Solaris Volume Manager base mod)
97 13baa30 5200 - 1 md_stripe (Solaris Volume Manager stripes )
98 13bf88c a32e - 1 md_mirror (Solaris Volume Manager mirrors )
116 78092000 e524 - 1 md_raid (Solaris Volume Manager raid mod)
117 780a2000 d5ce - 1 md_trans (Solaris Volume Manager trans mo)
118 780b0000 26f3 - 1 md_hotspares (Solaris Volume Manager hot spar)
119 780b2548 109c - 1 md_notify (Solaris Volume Manager notifica)

I looked at the objects in /kernel, and the symbols in question are
all defined by "md". Thus I cannot see anything wrong.

We have no idea how to proceed with this problem.

[Andreas Almroth]

Oliver Laumann wrote:

> We have just installed Solaris 9 on an Enterprise 450 and created
> a DiskSuite mirror containing two stripe/concat metadevices.
>
> The mirror works fine. However, at some point the meta tools
> (e.g. metastat, metadetach) mysteriously stopped working:
>
> # metastat
> metastat: imh: Error 0
>
> ("imh" is the hostname of the machine). The messages in the syslog are:
>
> krtld: [ID 826211 kern.notice] 'md_dkiocsetefi'
> krtld: [ID 819705 kern.notice] /kernel/misc/sparcv9/md_sp: undefined symbol
> krtld: [ID 826211 kern.notice] 'get_minfo'
> krtld: [ID 819705 kern.notice] /kernel/misc/sparcv9/md_sp: undefined symbol
> krtld: [ID 826211 kern.notice] 'md_bioclone'
> krtld: [ID 819705 kern.notice] /kernel/misc/sparcv9/md_sp: undefined symbol
> krtld: [ID 826211 kern.notice] 'md_getminor'
> krtld: [ID 472681 kern.notice] WARNING: mod_load: cannot load module 'md_sp'
>
> Several more symbols are flagged as undefined. Here is the relevant
> modinfo output:
>
> 85 136fecc 2389e 85 1 md (Solaris Volume Manager base mod)
> 97 13baa30 5200 - 1 md_stripe (Solaris Volume Manager stripes )
> 98 13bf88c a32e - 1 md_mirror (Solaris Volume Manager mirrors )
> 116 78092000 e524 - 1 md_raid (Solaris Volume Manager raid mod)
> 117 780a2000 d5ce - 1 md_trans (Solaris Volume Manager trans mo)
> 118 780b0000 26f3 - 1 md_hotspares (Solaris Volume Manager hot spar)
> 119 780b2548 109c - 1 md_notify (Solaris Volume Manager notifica)
>
> I looked at the objects in /kernel, and the symbols in question are
> all defined by "md". Thus I cannot see anything wrong.
>
> We have no idea how to proceed with this problem.

First, have you forceloaded misc/md_sp in /etc/system?
If modload doesn't find it, make sure that the file is still present in
/kernel/misc and /kernel/misc/sparcv9.

Looks like it is not loaded... I don't know if you have configured for
soft partitions, but you will need md_sp in that case...

Another one, make sure you have the latest rev of patch 113026. It fixes
a few nasties IMO...

/Andreas