On Fri, Nov 27, 2015 at 03:33:39PM +0000, Ben Hutchings wrote: > On Fri, 2015-11-27 at 15:39 +0100, Hendrik Brueckner wrote: > [...] > > --- a/disk-detect.sh > > +++ b/disk-detect.sh > > @@ -202,7 +202,7 @@ fi > > db_get disk-detect/multipath/enable > > if [ "$RET" = true ]; then > > > > if anna-install multipath-udeb; then > > -> > > MODULES="dm-mod dm-multipath dm-round-robin dm-emc" > > +> > > MODULES="dm-mod dm-multipath dm-service-time dm-round-robin dm-emc" > > > > > # We need some dm modules... > > > > > depmod -a >/dev/null 2>&1 || true > > > > > for MODULE in $MODULES; do > > At least dm-service-time and dm-round-robin will be automatically > loaded by the kernel when needed. I'm not sure about the others. Just tried it out... the dm-multipath must be loaded manually, otherwise: ~ # multipath Nov 27 16:42:37 | DM multipath kernel driver not loaded ~ # modprobe dm-multipath ~ # multipath create: 36005076307ffc5e300000000000082db undef IBM,2107900 size=20G features='0' hwhandler='0' wp=undef `-+- policy='round-robin 0' prio=1 status=undef |- 0:0:0:1088110722 sda 8:0 undef ready running `- 1:0:0:1088110722 sde 8:64 undef ready running Loading the module and running multipath automatically loads the other kernel modules: ~ # lsmod Module Size Used by dm_round_robin 16384 4 dm_multipath 32768 5 dm_round_robin scsi_dh 20480 1 dm_multipath dm_mod 139264 5 dm_multipath sd_mod 49152 8 qeth_l2 45056 1 fuse 122880 0 qeth 122880 1 qeth_l2 ccwgroup 20480 1 qeth zfcp 122880 8 scsi_transport_fc 69632 1 zfcp scsi_mod 241664 4 zfcp,scsi_transport_fc,scsi_dh,sd_mod dasd_eckd_mod 110592 0 dasd_mod 98304 1 dasd_eckd_mod multipath automatically tries to load its default path selector module. In the example, I modified the multipath.conf to use round-robin. So strictly this patch is not necessary but at least consistent regarding the manual loading of the other modules. I leave the change up to the maintainer of the hw-detect/disk-detect package. Thanks for your help. Kind regards, Hendrik
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