sa0 devices disappear after power cycling tape library

[Dan Langille]

> > On Mar 14, 2014, at 8:14 PM, Dan Langille <dan at langille.org> wrote:
> >=20
> > I have a tape library which acts up from time to time and I power cycle it=
> .
> >=20
> > After running camcontrol devlist rescan, some of the devices are missing
> >=20
> > This what I see in dev after power cycling the FreeBSD 9.2 server:
> >=20
> > $ ls *sa*
> > lrwxr-xr-x  1 root  wheel        6 Mar  8 02:12 esa0 -> esa0.0
> > crw-rw----  1 root  operator  0x70 Mar  8 02:12 esa0.0
> > crw-rw----  1 root  operator  0x76 Mar  8 02:12 esa0.1
> > crw-rw----  1 root  operator  0x79 Mar  8 02:12 esa0.2
> > crw-rw----  1 root  operator  0x7c Mar  8 02:12 esa0.3
> > crw-rw----  1 root  operator  0x75 Mar  8 02:12 nsa0.1
> > crw-rw----  1 root  operator  0x78 Mar  8 02:12 nsa0.2
> > crw-rw----  1 root  operator  0x7b Mar  8 02:12 nsa0.3
> > crw-rw----  1 root  operator  0x74 Mar  8 02:12 sa0.1
> > crw-rw----  1 root  operator  0x77 Mar  8 02:12 sa0.2
> > crw-rw----  1 root  operator  0x7a Mar  8 02:12 sa0.3
> >=20
> > This is what I see after rebooting the FreeBSD server:
> >=20
> > $ ls -l *sa*
> > lrwxr-xr-x  1 root  wheel        6 Mar 15 00:09 esa0 -> esa0.0
> > crw-rw----  1 root  operator  0x70 Mar 15 00:09 esa0.0
> > crw-rw----  1 root  operator  0x76 Mar 15 00:09 esa0.1
> > crw-rw----  1 root  operator  0x79 Mar 15 00:09 esa0.2
> > crw-rw----  1 root  operator  0x7c Mar 15 00:09 esa0.3
> > lrwxr-xr-x  1 root  wheel        6 Mar 15 00:09 nsa0 -> nsa0.0
> > crw-rw----  1 root  operator  0x6f Mar 15 00:09 nsa0.0
> > crw-rw----  1 root  operator  0x75 Mar 15 00:09 nsa0.1
> > crw-rw----  1 root  operator  0x78 Mar 15 00:09 nsa0.2
> > crw-rw----  1 root  operator  0x7b Mar 15 00:09 nsa0.3
> > lrwxr-xr-x  1 root  wheel        5 Mar 15 00:09 sa0 -> sa0.0
> > crw-rw----  1 root  operator  0x6e Mar 15 00:09 sa0.0
> > crw-rw----  1 root  operator  0x74 Mar 15 00:09 sa0.1
> > crw-rw----  1 root  operator  0x77 Mar 15 00:09 sa0.2
> > crw-rw----  1 root  operator  0x7a Mar 15 00:09 sa0.3
> > crw-rw----  1 root  operator  0x6d Mar 15 00:09 sa0.ctl
> >=20
> > Should I just do some ln -s?  Something easier, I=E2=80=99m sure=E2=80=A6.=
> 
> >=20
> 
> 
> Have you tried a camcontrol rescan ?

Yes, that’s what I meant by 'camcontrol devlist rescan’ above…

I ran: camcontrol rescan all.  The output above is after that command.

> Also what does camcontrol devlist -v   s=
> how before and after the reboot ?=20

I don’t have before, but after is:

$ sudo camcontrol devlistol devlist
Password:
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 2 lun 0 (pass0,da0)
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 10 lun 0 (pass1,da1)
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 11 lun 0 (pass2,da2)
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 12 lun 0 (pass3,da3)
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 13 lun 0 (pass4,da4)
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 14 lun 0 (pass5,da5)
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 16 lun 0 (pass6,da6)
<ATA TOSHIBA DT01ACA3 ABB0>        at scbus0 target 17 lun 0 (pass7,da7)
<TOSHIBA DT01ACA300 MX6OABB0>      at scbus5 target 0 lun 0 (ada0,pass8)
<TOSHIBA DT01ACA300 MX6OABB0>      at scbus5 target 1 lun 0 (ada1,pass9)
<QUANTUM DLT8000 0250>             at scbus7 target 4 lun 0 (sa0,pass10)
<OVERLAND LXB 0524>                at scbus7 target 6 lun 0 (pass11,ch0)

IIRC, before I ran the command, the last two entries were missing.


-- 
Dan Langille - http://langille.org

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