Difference between revisions of "FreeBSD fiber channel target"

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[[Category:FreeBSD]]
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== Introduction ==
 
== Introduction ==
  
 
You need:
 
You need:
* FreeBSD
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* FreeBSD with a kernel that supports your card, e.g. [[FreeBSD kernel with Fibre Channel target mode support for QLogic cards | for QLogic QLE2462]]
* A fiber channel card that supports target mode, e.g. [[FreeBSD kernel with Fibre Channel target mode support for QLogic cards | QLogic QLE2462]
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* a fiber channel card that supports target mode
 +
* a ZFS zvol
 +
 
 +
== Create a ZFS zvol ==
 +
 
 +
This will create a sparse 850GB ZFS zvol.
 +
 
 +
sudo zfs create -p -s -V 850g tank1/export/fc
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 +
== Enable ctld ==
 +
 
 +
sudo sysrc ctld_enable=YES
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== Bring the device online ==
 +
 
 +
sudo ctladm port -o on isp0
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sudo ctladm port -o on isp1
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 +
== Check the WWN address ==
 +
 
 +
You'll get output like:
 +
 
 +
z800:aram$ sudo ctladm port -l
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Port Online Frontend Name    pp vp
 +
0    YES    camsim  camsim  0  0  naa.50000009e370df01
 +
1    YES    ioctl    ioctl    0  0 
 +
2    YES    tpc      tpc      0  0 
 +
3    YES    camtgt  isp0    0  0  naa.2100001b321cd5b6
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4    YES    camtgt  isp1    0  0  naa.2101001b323cd5b6
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== Configure /etc/ctl.conf ==
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Use this config for /etc/ctl.conf:
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 +
lun fibre-channel {
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backend block
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device-id "5000c5001d5ba30b"
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serial "MGKSERIAL0001"
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option vendor "MGK"
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option product "FC Disk"
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option naa "600A0B80002682A8000067D95897A544"
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option removable "on"
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path /dev/zvol/tank1/export/fc
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}
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 +
target naa.100000062b1b88c8 {
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auth-group no-authentication
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port mpt0
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port mpt1
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lun 0 fibre-channel
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}
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 +
Make sure the WWN matches. Next, start the ctld daemon. The device-id is from a real Seagate FC disk, and the naa is from a real array. I think both are required by macOS to make multipathing work.
 +
 
 +
sudo service ctld start
 +
 
 +
Query the status, to see if everything is working correctly:
 +
 
 +
z800:aram$ sudo ctladm devlist -v                                                                                                                                         
 +
LUN Backend      Size (Blocks)  BS Serial Number    Device ID     
 +
  0 block            1782579200  512 MYSERIAL  0    MYDEVID  0   
 +
      lun_type=0
 +
      num_threads=14
 +
      file=/dev/zvol/tank1/export/fc
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      ctld_name=naa.2100001b321cd5b6,lun,0
 +
      scsiname=naa.2100001b321cd5b6,lun,0
 +
 
 +
== Initiator side ==
 +
 
 +
If using macOS, the mac should just "see" the target, no configuration required.
 +
 
 +
== References ==
 +
 
 +
* [https://justinholcomb.me/blog/2016/03/19/migration-to-freebsd-part3.html Migrating to FreeBSD from Solaris 11: Part 3 - Importing ZVols for serving via Fiber Channel]
 +
* [https://globalengineer.wordpress.com/2018/03/25/applied-freebsd-fibre-channel-target Applied FreeBSD: Fibre Channel Target]
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* [https://discussions.apple.com/thread/1927941 SAN multipathing in OS X 10.5 Leopard]

Latest revision as of 10:25, 22 February 2019


Introduction

You need:

  • FreeBSD with a kernel that supports your card, e.g. for QLogic QLE2462
  • a fiber channel card that supports target mode
  • a ZFS zvol

Create a ZFS zvol

This will create a sparse 850GB ZFS zvol.

sudo zfs create -p -s -V 850g tank1/export/fc

Enable ctld

sudo sysrc ctld_enable=YES

Bring the device online

sudo ctladm port -o on isp0
sudo ctladm port -o on isp1

Check the WWN address

You'll get output like:

z800:aram$ sudo ctladm port -l
Port Online Frontend Name     pp vp
0    YES    camsim   camsim   0  0  naa.50000009e370df01
1    YES    ioctl    ioctl    0  0  
2    YES    tpc      tpc      0  0  
3    YES    camtgt   isp0     0  0  naa.2100001b321cd5b6
4    YES    camtgt   isp1     0  0  naa.2101001b323cd5b6

Configure /etc/ctl.conf

Use this config for /etc/ctl.conf:

lun fibre-channel {
	backend block
	device-id "5000c5001d5ba30b"
	serial "MGKSERIAL0001"
	option vendor "MGK"
	option product "FC Disk"
	option naa "600A0B80002682A8000067D95897A544"
	option removable "on"
	path /dev/zvol/tank1/export/fc
}

target naa.100000062b1b88c8 {
	auth-group no-authentication
	port mpt0
	port mpt1
	lun 0 fibre-channel
}

Make sure the WWN matches. Next, start the ctld daemon. The device-id is from a real Seagate FC disk, and the naa is from a real array. I think both are required by macOS to make multipathing work.

sudo service ctld start

Query the status, to see if everything is working correctly:

z800:aram$ sudo ctladm devlist -v                                                                                                                                          
LUN Backend       Size (Blocks)   BS Serial Number    Device ID       
  0 block            1782579200  512 MYSERIAL   0     MYDEVID   0     
      lun_type=0
      num_threads=14
      file=/dev/zvol/tank1/export/fc
      ctld_name=naa.2100001b321cd5b6,lun,0
      scsiname=naa.2100001b321cd5b6,lun,0

Initiator side

If using macOS, the mac should just "see" the target, no configuration required.

References