I'm trying to make a NetBSD iSCSI initiator get along with a FreeBSD
iSCSI target.
Things work well when the server only has one target defined:
freebsd-target# cat targets
extent0 /dev/zvol/storage/volumes/vol0 0 6G (* see
p.s c.)
#extent1 /dev/zvol/storage/volumes/vol1 0 6G (* see
p.s c.)
# target flags storage netmask
target0 rw extent0 0.0.0.0/0
#target1 rw extent1 0.0.0.0/0
( NetBSD initiator )
initiator# iscsifs -u alice -h $ISCSI_SERVER_ADDR
/iscsi/
iscsifs: puffs_mount: "/iscsi/" is a relative path.
iscsifs: puffs_mount: using "/iscsi" instead.
Now, if I uncomment extent1 and target1 @ the targets file on the
FreeBSD box:
initiator# iscsifs -u alice -h $ISCSI_SERVER_ADDR
/iscsi/
pid 5286:initiator.c:2020: ***ERROR*** Bad "ISID": Got 16777217
expected 1.
pid 5286:initiator.c:1813: ***ERROR*** initiator_cmd_t failed
pid 5286:initiator.c:762: ***ERROR*** login_phase_i() failed
pid 5286:initiator.c:1169: ***ERROR*** enqueue_worker:
full_feature_phase() failed (ignoring command)
I can connect to both just fine, with either version of the
configuration file, from another FreeBSD server:
freebsd-initiator# iscontrol -n target0
iscontrol[21250]: running
iscontrol[21250]: (pass5:iscsi0:0:0:0): tagged openings now 0
iscontrol[21250]: cam_open_btl: no passthrough device found at 3:0:1
iscontrol[21250]: cam_open_btl: no passthrough device found at 3:0:2
iscontrol[21250]: cam_open_btl: no passthrough device found at 3:0:3
iscontrol: supervise starting main loop
freebsd-initiator# iscontrol -n target1
iscontrol[21254]: running
iscontrol[21254]: (pass5:iscsi0:0:1:0): tagged openings now 0
iscontrol[21254]: cam_open_btl: no passthrough device found at 3:1:1
iscontrol[21254]: cam_open_btl: no passthrough device found at 3:1:2
iscontrol[21254]: cam_open_btl: no passthrough device found at 3:1:3
iscontrol: supervise starting main loop
freebsd-initiator# dmesg | egrep "(da3|da4)"
da3 at iscsi0 bus 0 target 1 lun 0
da3: <NetBSD NetBSD iSCSI 0> Fixed Direct Access SCSI-3 device
da4 at iscsi0 bus 0 target 0 lun 0
da4: <NetBSD NetBSD iSCSI 0> Fixed Direct Access SCSI-3 device
I can't for the life of me figure out what I'm doing wrong.
p.s: A few observations about iscsifs:
a) If iscsifs exposes the iscsi target under a directory of one's
choice, isn't -t target redundant? targets will show up under dir/ip/
, and the block storage is under the dir/ip/targetX directory.
b) small bug?
netbsd-initiator# iscsifs -u alice -h $ISCSI_SERVER_ADDR /iscsi&
[1] 529
# cd
/iscsi
# dir
total 1.5K
drwxr-xr-x 2 root wheel - 0B Dec 31 1969 ./
drwxr-xr-x 24 root wheel - 1.0K Oct 21 08:48 ../
drwxr-xr-x 2 root wheel - 512B Sep 25 08:21 $ISCSI_SERVER_ADDR/
# dir
$ISCSI_SERVER_ADDR/
ls: $ISCSI_SERVER_ADDR: No such file or directory <- XXXXXXXXXX ?
total 1.0K
drwxr-xr-x 2 root wheel - 512B Sep 25 08:21 ./
drwxr-xr-x 2 root wheel - 0B Dec 31 1969 ../
drwxr-xr-x 2 root wheel - 512B Sep 25 08:21 target0/
c) According to the manpage:
"The fourth field in the definition is the size of
the extent. The basic unit is bytes, and the shorthand KB, MB,
GB, and
TB can be used for kilobytes (1024 bytes), megabytes (1024
kilobytes),
gigabytes (1024 megabytes), and terabytes (1024 gigabytes)
respectively.
It is possible to use the word ``size'' to use the full size of
the pre-
existing regular file given in the extent name."
but:
freebsd-target# /usr/local/etc/rc.d/iscsi_target forcestart
Starting iscsi_target.
Reading configuration from `/usr/local/etc/iscsi/targets'
target0:rw:0.0.0.0/0
extent0:/dev/zvol/storage/volumes/vol0:0:0
DISK: 1 logical unit (0 blocks, 512 bytes/block), type iscsi fs
DISK: LUN 0: pid 45864:disk.c:675: ***ERROR*** error reading
"target0"pid 45864:disk.c:807: ***ERROR*** error allocating space for
"target0"pid 45864:target.
c:1553: ***ERROR*** device_init() failed
pid 45864:iscsi-target.c:145: ***ERROR*** target_init() failed
Assuming this was related to my use of ZVOLs, I tried with a md(4)
device. Same problem.