[dm-devel] problem with multipathd, not all paths added to adisk on boot
Sebastian Reitenbach
sebastia at l00-bugdead-prods.de
Thu Nov 6 20:33:43 UTC 2008
Hi,
Mike Anderson <andmike at linux.vnet.ibm.com> wrote:
> Sebastian Reitenbach <sebastia at l00-bugdead-prods.de> wrote:
> > /dev/sdb in group vm-store, on 1:0:0:0 is not listed, however, lsscsi
> > has the disk in the list:
> > [1:0:0:0] disk IBM 1814 FAStT 0916 /dev/sdb
> >
> > for the disk that is not added to the group, I see sth like this
> > in /var/log/messages:
> > Nov 6 12:32:36 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> > Nov 6 12:32:39 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> > Nov 6 12:32:39 srv24 kernel: end_request: I/O error, dev sdb, sector 8
> > Nov 6 12:32:42 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> > Nov 6 12:32:42 srv24 multipathd: sdb: add path (uevent)
> > Nov 6 12:32:42 srv24 multipathd: sdb: spurious uevent, path already in
> > pathvec
> > Nov 6 12:32:42 srv24 multipathd: sdb: failed to get path uid
> > Nov 6 12:32:45 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> >
>
> What does running "/sbin/scsi_id -g -u -s /block/sdb" return when you are
> in this failing mode?
/sbin/scsi_id -g -u -s /block/sdb
3600a0b800048b3fe00000431490e90ce
>
> If scsi_id fails what does "sg_inq -v /dev/sdb" and
> "cat /sys/block/sdb/device/state" return?
It doesn't fail, but anyways:
sg_inq -v /dev/sdb
inquiry cdb: 12 00 00 00 24 00
standard INQUIRY:
inquiry cdb: 12 00 00 00 4a 00
PQual=0 Device_type=0 RMB=0 version=0x05 [SPC-3]
[AERC=0] [TrmTsk=0] NormACA=1 HiSUP=1 Resp_data_format=2
SCCS=0 ACC=0 TGPS=0 3PC=0 Protect=0 BQue=0
EncServ=1 MultiP=0 [MChngr=0] [ACKREQQ=0] Addr16=0
[RelAdr=0] WBus16=1 Sync=1 Linked=0 [TranDis=0] CmdQue=1
Clocking=0x0 QAS=0 IUS=0
length=74 (0x4a) Peripheral device type: disk
Vendor identification: IBM
Product identification: 1814 FAStT
Product revision level: 0916
inquiry cdb: 12 01 00 00 fc 00
inquiry: requested 252 bytes but got 21 bytes
inquiry cdb: 12 01 80 00 fc 00
inquiry: requested 252 bytes but got 20 bytes
Unit serial number: SG83955342
cat /sys/block/sdb/device/state
running
thanks
Sebastian
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