Date: Thu, 20 Feb 2014 23:27:37 +0000 From: Steve Burton <steve@sliderule.demon.co.uk> To: Dan Nelson <dnelson@allantgroup.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: iSCSI Backing store Message-ID: <53068F69.5020502@sliderule.demon.co.uk> In-Reply-To: <20140220230554.GF80443@dan.emsphone.com> References: <530661A6.1030606@sliderule.demon.co.uk> <20140220204526.GE80443@dan.emsphone.com> <5306708D.6090001@sliderule.demon.co.uk> <20140220230554.GF80443@dan.emsphone.com>
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On 20/02/2014 23:05, Dan Nelson wrote:
> In the last episode (Feb 20), Steve Burton said:
>> On 20/02/2014 20:45, Dan Nelson wrote:
>>> In the last episode (Feb 20), Steve Burton said:
>>>> I'm trying to familiarize myself with the iSCSI implementation in
>>>> FreeBSD 10 REL. I have made a target containing two LUNs which are
>>>> backed by two files on my test server (redundant PC). This all worked
>>>> well though it took ages to make the files using dd.
>>>>
>>>> My second question relates to making iSCSI LUNs using a disk volume. I
>>>> have a second (empty) hard drive. Is it possible to just use the disk
>>>> as backing store for iSCSI?
>>>
>>> I don't see why not.
>>
>> I didn't see why not either but so far I can't see how :)
>
> You haven't said what error message you are getting when you specify a raw
> device, though... "path /dev/ada1", for example.
>
Dan,
good point.
I added
lun 2 {
path /dev/ada1
}
to the portal group and started ctld. The following was in /var/log/messages
Feb 20 23:13:01 files kernel: cfiscsi_ioctl_handoff: new connection from
iqn.1991-05.com.microsoft:titan (192.168.254.1) to
iqn.2012-06.com.example:target0
Feb 20 23:13:01 files kernel: (0:2:0:0): MODE SENSE(6). CDB: 1a 00 1c 00
c0 00
Feb 20 23:13:01 files kernel: (0:2:0:0): Tag: 0xcc621100, Type: 1
Feb 20 23:13:01 files kernel: (0:2:0:0): CTL Status: SCSI Error
Feb 20 23:13:01 files kernel: (0:2:0:0): SCSI Status: Check Condition
Feb 20 23:13:01 files kernel: (0:2:0:0): SCSI sense: ILLEGAL REQUEST
asc:24,0 (Invalid field in CDB)
Feb 20 23:13:01 files kernel: (0:2:0:0): Command byte 2 bit 5 is invalid
Feb 20 23:13:01 files kernel: (0:2:0:1): MODE SENSE(6). CDB: 1a 00 1c 00
c0 00
Feb 20 23:13:01 files kernel: (0:2:0:1): Tag: 0xdc621100, Type: 1
Feb 20 23:13:01 files kernel: (0:2:0:1): CTL Status: SCSI Error
Feb 20 23:13:01 files kernel: (0:2:0:1): SCSI Status: Check Condition
Feb 20 23:13:01 files kernel: (0:2:0:1): SCSI sense: ILLEGAL REQUEST
asc:24,0 (Invalid field in CDB)
Feb 20 23:13:01 files kernel: (0:2:0:1): Command byte 2 bit 5 is invalid
I googled the line 'files kernel: (0:2:0:0): Command byte 2 bit 5 is
invalid' and found a recommendation in a FreeNAS forum that I should run
'camcontrol rescan all'
so I did and it sprang into life.
Problem solved!
thanks for your help.
Steve.
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