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Date: Fri, 19 Mar 2010 19:41:25 -0700
From: "Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To: linux-scsi <linux-scsi@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
openfcoe-devel <devel@...n-fcoe.org>,
"Linux-iSCSI.org Target Dev"
<linux-iscsi-target-dev@...glegroups.com>,
Linux-fsdevel <linux-fsdevel@...r.kernel.org>
Cc: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
Mike Christie <michaelc@...wisc.edu>,
Hannes Reinecke <hare@...e.de>,
Douglas Gilbert <dgilbert@...erlog.com>,
James Bottomley <James.Bottomley@...e.de>,
Christoph Hellwig <hch@....de>,
Joe Eykholt <jeykholt@...co.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
"Love, Robert W" <robert.w.love@...el.com>,
Chris Leech <christopher.leech@...el.com>,
Philipp Reisner <philipp.reisner@...bit.com>,
Florian Haas <florian.haas@...bit.com>
Subject: [ANNOUNCE] TCM/ConfigFS v3.4.0-rc1
Greetings all,
It is my great honor to announce the Target_Core_Mod/ConfigFS infrastructure project
has reached v3.4.0-rc1 and is again tracking linux-2.6.git HEAD at v2.6.34-rc1. The
kernel code can be found here:
http://git.kernel.org/?p=linux/kernel/git/nab/lio-core-2.6.git;a=summary
With this release marks the merge of the Open-FCoE.org based target module (tcm_fc) for
TCM/ConfigFS 3.x contributed by Joe Eykholt as the third fabric module available in
lio-core-2.6.git/master. This has included in a seperate release announcement, and
information for the TCM Open-FCoE.org target module can be found here:
http://www.linux-iscsi.org/index.php/Openfcoe
This release also reaches the milestone of TCM/ConfigFS becoming the first and only Linux
target mode project to run in multi-fabric mode across all known feature bits for SPC-4
defined persistent reservations (PR) using iSCSI, FCoE and Virtual SAS ports. This patch series
and test case to make that happen for PR features SPEC_I_PT=1 and REGISTER_AND_MOVE was originally
posted here:
http://permalink.gmane.org/gmane.linux.scsi/57831
For more information about TCM/ConfigFS and fabric module usage with PR+ALUA, please have a look at:
http://www.linux-iscsi.org/index.php/Target_Core_Mod/ConfigFS
http://www.linux-iscsi.org/index.php/Persistent_Reservations
http://www.linux-iscsi.org/index.php/ALUA
Finally as no announcement would be complete without an multi-fabric demonstration, here is how
explict/implict ALUA multipath using upstream scsi_dh_alua is looking with Open-iSCSI + Open-FCoE
Initiators between TCM LIO-Target iSCSI and Open-FCoE.org target ports. This is done by seperate
the iSCSi and FCoE Target ports into two different ALUA Target Port Groups (1gb_iscsi and 1gb_fcoe
respectively) for the same TCM/FILEIO LUN backstore.
Any constructive comments or questions are welcome!
--nab
*) Example /etc/multipath.conf
defaults {
udev_dir /dev
polling_interval 2
default_getuid_callout "/lib/udev/scsi_id -g -u -s /block/%n"
user_friendly_names yes
}
devices {
device {
vendor "LIO-ORG"
product "FILEIO"
path_grouping_policy group_by_prio
path_checker tur
prio_callout "/sbin/mpath_prio_alua /dev/%n"
hardware_handler "1 alua"
}
}
*) Create fcoe association for eth0 on initiator side:
echo eth0 > /sys/module/fcoe/parameters/create
[ 853.184640] scsi0 : FCoE Driver
[ 853.186064] host0: libfc: Link up on port ( 0)
[ 856.754764] host0: Assigned Port ID 10101
[ 856.758376] scsi 0:0:0:0: Direct-Access LIO-ORG FILEIO 3.1 PQ: 0 ANSI: 5
[ 856.818511] sd 0:0:0:0: [sda] READ CAPACITY(16) failed
[ 856.819201] sd 0:0:0:0: [sda] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
[ 856.820127] sd 0:0:0:0: [sda] Sense not available.
[ 856.820964] sd 0:0:0:0: [sda] 97656251 512-byte logical blocks: (50.0 GB/46.5 GiB)
[ 856.822580] sd 0:0:0:0: [sda] Write Protect is off
[ 856.823230] sd 0:0:0:0: [sda] Mode Sense: 2f 00 00 00
[ 856.823640] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 856.825018] sd 0:0:0:0: [sda] READ CAPACITY(16) failed
[ 856.825688] sd 0:0:0:0: [sda] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
[ 856.826620] sd 0:0:0:0: [sda] Sense not available.
[ 856.828304] sda: unknown partition table
[ 856.830403] sd 0:0:0:0: [sda] READ CAPACITY(16) failed
[ 856.831109] sd 0:0:0:0: [sda] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
[ 856.832039] sd 0:0:0:0: [sda] Sense not available.
[ 856.833689] sd 0:0:0:0: [sda] Attached SCSI disk
<SNIP>
[ 857.265004] alua: device handler registered
[ 857.290275] device-mapper: multipath round-robin: version 1.0.0 loaded
[ 857.291599] sd 0:0:0:0: alua: supports implicit and explicit TPGS
[ 857.292794] sd 0:0:0:0: alua: port group 00 rel port 02
[ 857.293645] sd 0:0:0:0: alua: port group 00 state A supports TOUSNA
[ 857.300249] sd 0:0:0:0: alua: port group 00 state A supports TOUSNA
*) Create iSCSI session using Open-iSCSI:
iscsiadm -m node -T iqn.2003-01.org.linux-iscsi.lenny64guest1.x8664:sn.3074797efee0 --portal 192.168.0.250 --login
[ 893.969954] scsi1 : iSCSI Initiator over TCP/IP
[ 894.286774] scsi 1:0:0:0: Direct-Access LIO-ORG FILEIO 3.1 PQ: 0 ANSI: 5
[ 894.289767] sd 1:0:0:0: [sdb] 97656251 512-byte logical blocks: (50.0 GB/46.5 GiB)
[ 894.292437] sd 1:0:0:0: [sdb] Write Protect is off
[ 894.293254] sd 1:0:0:0: [sdb] Mode Sense: 2f 00 00 00
[ 894.293951] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 894.297422] sdb: unknown partition table
[ 894.304374] sd 1:0:0:0: [sdb] Attached SCSI disk
[ 894.976821] sd 1:0:0:0: alua: supports implicit and explicit TPGS
[ 894.978378] sd 1:0:0:0: alua: port group 00 rel port 01
[ 894.979626] sd 1:0:0:0: alua: port group 00 state A supports TOUSNA
[ 894.989850] sd 1:0:0:0: alua: port group 00 state A supports TOUSNA
[ 894.990726] sd 0:0:0:0: alua: port group 00 state A supports TOUSNA
*) lsscsi and multipath output:
lenny64guest0:~# lsscsi
[0:0:0:0] disk LIO-ORG FILEIO 3.1 /dev/sda
[1:0:0:0] disk LIO-ORG FILEIO 3.1 /dev/sdb
lenny64guest0:~# lsscsi --transport
[0:0:0:0] disk fc:0x200000e081c090b3,0x010102 /dev/sda
[1:0:0:0] disk iqn.2003-01.org.linux-iscsi.lenny64guest1.x8664:sn.3074797efee0,t,0x1 /dev/sdb
lenny64guest0:~# multipath -ll
mpath2 (36001405f776de20dc416d4382d8b16d0) dm-0 LIO-ORG ,FILEIO
[size=47G][features=0][hwhandler=1 alua]
\_ round-robin 0 [prio=100][active]
\_ 1:0:0:0 sdb 8:16 [active][ready]
\_ 0:0:0:0 sda 8:0 [active][ready]
*) Target side ALUA Target Port Group output
lenny64guest1:/sys/kernel/config/target# tcm_node --listaluatpgs fileio_0/myfile
\------> 1g_fcoe Target Port Group ID: 2
Active ALUA Access Type(s): Implict and Explict
Primary Access State: Active/NonOptimized
Primary Access Status: Altered by Explict STPG
Preferred Bit: 0
Active/NonOptimized Delay in milliseconds: 100
Transition Delay in milliseconds: 0
\------> TG Port Group Members
fc/20:00:00:e0:81:c0:90:b3/tpgt_1/lun_0
\------> 1g_iscsi Target Port Group ID: 1
Active ALUA Access Type(s): Implict and Explict
Primary Access State: Active/Optimized
Primary Access Status: Altered by Explict STPG
Preferred Bit: 0
Active/NonOptimized Delay in milliseconds: 100
Transition Delay in milliseconds: 0
\------> TG Port Group Members
iSCSI/iqn.2003-01.org.linux-iscsi.lenny64guest1.x8664:sn.3074797efee0/tpgt_1/lun_0
\------> default_tg_pt_gp Target Port Group ID: 0
Active ALUA Access Type(s): Implict and Explict
Primary Access State: Active/NonOptimized
Primary Access Status: Altered by Explict STPG
Preferred Bit: 0
Active/NonOptimized Delay in milliseconds: 100
Transition Delay in milliseconds: 0
\------> TG Port Group Members
No Target Port Group Members
*) TCM, LIO-Target and TCM_FC configfs layout
|-- core
| |-- alua
| | `-- lu_gps
| | `-- default_lu_gp
| | |-- lu_gp_id
| | `-- members
| `-- fileio_0
| |-- hba_info
| |-- hba_mode
| `-- myfile
| |-- alias
| |-- alua
| | |-- 1g_fcoe
| | | |-- alua_access_state
| | | |-- alua_access_status
| | | |-- alua_access_type
| | | |-- alua_write_metadata
| | | |-- members
| | | |-- nonop_delay_msecs
| | | |-- preferred
| | | |-- tg_pt_gp_id
| | | `-- trans_delay_msecs
| | |-- 1g_iscsi
| | | |-- alua_access_state
| | | |-- alua_access_status
| | | |-- alua_access_type
| | | |-- alua_write_metadata
| | | |-- members
| | | |-- nonop_delay_msecs
| | | |-- preferred
| | | |-- tg_pt_gp_id
| | | `-- trans_delay_msecs
| | `-- default_tg_pt_gp
| | |-- alua_access_state
| | |-- alua_access_status
| | |-- alua_access_type
| | |-- alua_write_metadata
| | |-- members
| | |-- nonop_delay_msecs
| | |-- preferred
| | |-- tg_pt_gp_id
| | `-- trans_delay_msecs
| |-- alua_lu_gp
| |-- attrib
| | |-- block_size
| | |-- emulate_tas
| | |-- emulate_ua_intlck_ctrl
| | |-- hw_block_size
| | |-- hw_max_sectors
| | |-- hw_queue_depth
| | |-- max_sectors
| | |-- queue_depth
| | `-- task_timeout
| |-- control
| |-- enable
| |-- fd
| |-- info
| |-- pr
| | |-- res_aptpl_active
| | |-- res_aptpl_metadata
| | |-- res_holder
| | |-- res_pr_all_tgt_pts
| | |-- res_pr_generation
| | |-- res_pr_holder_tg_port
| | |-- res_pr_registered_i_pts
| | |-- res_pr_type
| | `-- res_type
| |-- snap
| | |-- check_interval
| | |-- contact
| | |-- create_interval
| | |-- enabled
| | |-- lv_group
| | |-- lvc_size
| | |-- max_snapshots
| | |-- max_warn
| | |-- permissions
| | |-- pid
| | |-- usage
| | |-- usage_warn
| | `-- vgs_usage_warn
| |-- udev_path
| `-- wwn
| |-- vpd_assoc_logical_unit
| |-- vpd_assoc_scsi_target_device
| |-- vpd_assoc_target_port
| |-- vpd_protocol_identifier
| `-- vpd_unit_serial
|-- fc
| |-- 20:00:00:e0:81:c0:90:b3
| | `-- tpgt_1
| | |-- acl
| | | `-- 20:00:00:e0:81:c0:90:b2
| | | |-- auth
| | | | |-- node_name
| | | | `-- port_name
| | | `-- lun_0
| | | `-- lun_0 -> ../../../../../../../target/fc/20:00:00:e0:81:c0:90:b3/tpgt_1/lun/lun_0
| | `-- lun
| | `-- lun_0
| | |-- alua_tg_pt_gp
| | |-- alua_tg_pt_offline
| | |-- alua_tg_pt_status
| | |-- alua_tg_pt_write_md
| | `-- tcm_fc_port -> ../../../../../../target/core/fileio_0/myfile
| `-- version
|-- iscsi
| |-- discovery_auth
| | |-- authenticate_target
| | |-- enforce_discovery_auth
| | |-- password
| | |-- password_mutual
| | |-- userid
| | `-- userid_mutual
| |-- iqn.2003-01.org.linux-iscsi.lenny64guest1.x8664:sn.3074797efee0
| | `-- tpgt_1
| | |-- acls
| | | `-- iqn.1993-08.org.debian:01:5640fc164638
| | | |-- attrib
| | | | |-- dataout_timeout
| | | | |-- dataout_timeout_retries
| | | | |-- default_erl
| | | | |-- nopin_response_timeout
| | | | |-- nopin_timeout
| | | | |-- random_datain_pdu_offsets
| | | | |-- random_datain_seq_offsets
| | | | `-- random_r2t_offsets
| | | |-- auth
| | | | |-- authenticate_target
| | | | |-- password
| | | | |-- password_mutual
| | | | |-- userid
| | | | `-- userid_mutual
| | | |-- cmdsn_depth
| | | |-- info
| | | |-- lun_0
| | | | |-- abe06ac681 -> ../../../../../../../target/iscsi/iqn.2003-01.org.linux-iscsi.lenny64guest1.x8664:sn.3074797efee0/tpgt_1/lun/lun_0
| | | | `-- write_protect
| | | `-- param
| | | |-- DataPDUInOrder
| | | |-- DataSequenceInOrder
| | | |-- DefaultTime2Retain
| | | |-- DefaultTime2Wait
| | | |-- ErrorRecoveryLevel
| | | |-- FirstBurstLength
| | | |-- ImmediateData
| | | |-- InitialR2T
| | | |-- MaxBurstLength
| | | |-- MaxConnections
| | | `-- MaxOutstandingR2T
| | |-- attrib
| | | |-- authentication
| | | |-- cache_dynamic_acls
| | | |-- default_cmdsn_depth
| | | |-- demo_mode_write_protect
| | | |-- generate_node_acls
| | | |-- login_timeout
| | | |-- netif_timeout
| | | `-- prod_mode_write_protect
| | |-- control
| | |-- enable
| | |-- lun
| | | `-- lun_0
| | | |-- 9b5222b0c6 -> ../../../../../../target/core/fileio_0/myfile
| | | |-- alua_tg_pt_gp
| | | |-- alua_tg_pt_offline
| | | |-- alua_tg_pt_status
| | | `-- alua_tg_pt_write_md
| | |-- np
| | | `-- 192.168.0.250:3260
| | | |-- info
| | | `-- sctp
| | `-- param
| | |-- AuthMethod
| | |-- DataDigest
| | |-- DataPDUInOrder
| | |-- DataSequenceInOrder
| | |-- DefaultTime2Retain
| | |-- DefaultTime2Wait
| | |-- ErrorRecoveryLevel
| | |-- FirstBurstLength
| | |-- HeaderDigest
| | |-- IFMarkInt
| | |-- IFMarker
| | |-- ImmediateData
| | |-- InitialR2T
| | |-- MaxBurstLength
| | |-- MaxConnections
| | |-- MaxOutstandingR2T
| | |-- MaxRecvDataSegmentLength
| | |-- OFMarkInt
| | |-- OFMarker
| | `-- TargetAlias
| `-- lio_version
`-- version
*) lsmod output on target side:
lenny64guest1:/sys/kernel/config/target# lsmod
Module Size Used by
tcm_fc 21970 6
fcoe 16843 1
libfcoe 10914 1 fcoe
libfc 72344 3 tcm_fc,fcoe,libfcoe
scsi_transport_fc 36413 2 fcoe,libfc
iscsi_target_mod 212124 7
target_core_mod 243050 23 tcm_fc,iscsi_target_mod
scsi_tgt 8418 2 scsi_transport_fc,target_core_mod
configfs 19535 4 tcm_fc,iscsi_target_mod,target_core_mod
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