Need help

2009-01-05 Thread Prachi Bodke

Hi all,
I am new to this iSCSI..
I want to study the iSCSI interface with Linux.
Can any1 help me out in this..??
From where to start?? using that interface, i want to develop one
small application..
Please help me out..as soon as possible.
Thanks in advance

Regards,
Prachi
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Re: Need help

2009-01-05 Thread Yuri
welcome new friend.

On Mon, Jan 5, 2009 at 4:15 PM, Prachi Bodke prachibo...@gmail.com wrote:


 Hi all,
 I am new to this iSCSI..
 I want to study the iSCSI interface with Linux.
 Can any1 help me out in this..??
 From where to start?? using that interface, i want to develop one
 small application..
 Please help me out..as soon as possible.
 Thanks in advance

 Regards,
 Prachi
 



-- 
Thanks  regards,|73
Yuri Huang

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Re: Need help

2009-01-05 Thread prachi bodke
Thnks...but plz help me out as soon as possible..

On Mon, Jan 5, 2009 at 2:00 PM, Yuri yuri.li...@gmail.com wrote:

 welcome new friend.

 On Mon, Jan 5, 2009 at 4:15 PM, Prachi Bodke prachibo...@gmail.comwrote:


 Hi all,
 I am new to this iSCSI..
 I want to study the iSCSI interface with Linux.
 Can any1 help me out in this..??
 From where to start?? using that interface, i want to develop one
 small application..
 Please help me out..as soon as possible.
 Thanks in advance

 Regards,
 Prachi




 --
 Thanks  regards,|73
 Yuri Huang


 



-- 
Regards,
Prachi S. Bodke

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Re: Frequent Connection Errors with Dell Equallogic RAID

2009-01-05 Thread Mike Christie

Mike Christie wrote:
 Evan Broder wrote:
 Evan Broder wrote:
 Just got another round of failures with the new debugging patch in.
 Traffic dump at
 http://web.mit.edu/broder/Public/iscsi/iscsi_traffic-2008-12-20-22-00.pcap.bz2,
 syslog (including the kernel log) at
 http://web.mit.edu/broder/Public/iscsi/syslog-2008-12-20-22-00.bz2

 - Evan
   
 I hate to press the issue, but has anyone had a chance to look at these?

 
 I have been out since the 17th and will be back on the 5th. I will check 
 them out when I am back. Sorry for the delay.
 

I am looking at the updated logs and pcap now. I should have something 
to report later today.

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Re: Need help

2009-01-05 Thread vaibhav pol
On Mon, Jan 5, 2009 at 2:02 PM, prachi bodke prachibo...@gmail.com wrote:

 Thnks...but plz help me out as soon as possible..

 On Mon, Jan 5, 2009 at 2:00 PM, Yuri yuri.li...@gmail.com wrote:

 welcome new friend.

 On Mon, Jan 5, 2009 at 4:15 PM, Prachi Bodke prachibo...@gmail.comwrote:


 Hi all,
 I am new to this iSCSI..
 I want to study the iSCSI interface with Linux.
 Can any1 help me out in this..??
 From where to start?? using that interface, i want to develop one
 small application..
 Please help me out..as soon as possible.
 Thanks in advance

 Regards,
 Prachi




 --
 Thanks  regards,|73
 Yuri Huang






 --
 Regards,
 Prachi S. Bodke


Hi,

 you can check this two links.

http://www.howtoforge.com/iscsi_on_linux

http://en.wikipedia.org/wiki/ISCSI



Thanks and regards,
Vaibhav  Pol
National PARAM Supercomputing Facility
Centre for Development of Advanced   Computing
Ganeshkhind Road
Pune University Campus
PUNE-Maharastra
Phone +91-20-25704176 ext: 176
Cell Phone :  +919850466409








 


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Re: list of targets that support ERL1

2009-01-05 Thread Tracy Reed
On Mon, Jan 05, 2009 at 12:38:49PM -0800, Albert Pauw spake thusly:
 On Jan 5, 7:26 pm, Ming Zhang blackmagic02...@gmail.com wrote:
  On Mon, 2009-01-05 at 12:10 -0600, Mike Christie wrote:
   Hey Target vendors and Users,
 
   If you know of a target that supports ERL1, could you email me? Do it
   off list or on the thread. It does not matter.
 
  http://linux-iscsi.org/index.php/Main_Page
 
 The Wasabi Storagebuilder target supports ERL0, 1, and 2 according to
 their documentation.

What does ERL 1 or 2 really buy you? ERL 0 just means re-establishing
the connection right? This can't take very long. And how often do
errors happen? I've read the RFC's and it seems like supporting 1 and
2 are a lot of complication for little gain. But maybe I'm missing
something. I have looked and I am not aware of any FOSS target that
supports ERL1 or 2.

-- 
Tracy Reed
http://tracyreed.org


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Re: open-iscsi and Sun Amber Road anomalies

2009-01-05 Thread Konrad Rzeszutek

On Fri, Dec 26, 2008 at 01:05:53AM -0800, Albert Pauw wrote:
 
 Hi Mike,
 
 thought you might be interested in this. I am using the Sun amber road
 vmware demo and set it to export an iscsi target.
 
 The fun part starts at discovery. I have defined two interfaces on it,
 one for administration, the other for the actual target. When I send a
 target discovery request to the data interface the target responds
 with its name (iqn.blabla) and the two interface IP numbers, which
 open-iscsi happily puts in its database (that is, the same name and
 two different IP numbers, so two entries), like this.
 
 [r...@orange ~]# iscsiadm -m node
 192.168.1.125:3260,1 iqn.1986-03.com.sun:02:8e72afff-eb91-e5e0-de5a-
 bce6de1eb109
 192.168.1.126:3260,1 iqn.1986-03.com.sun:02:8e72afff-eb91-e5e0-de5a-
 bce6de1eb109
 
 Using the delete option removes them both, as the name is the same.
 Needles to say that if you login, you login to both, creating in my
 case a /dev/sdb and /dev/sdc device, effectively being the same
 target. I can see multipathing here, but not as we know it ;-)

What do you mean? Multipath doesn't work with that iSCSI target?

 
 Any ideas? E.g. marking the node as a multipathing device, as the iqn
 name is the same?

Marking? From an iSCSI standpoint having two (or even more) of the same IQN
is OK.

 
 And yes, happy holidays!!

You too!

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Re: Need help

2009-01-05 Thread Konrad Rzeszutek

On Mon, Jan 05, 2009 at 12:15:11AM -0800, Prachi Bodke wrote:
 
 Hi all,
 I am new to this iSCSI..
 I want to study the iSCSI interface with Linux.

Take a look at RFC 3720, then at RFC 3720.

It might also be useful to get acquainted with the SCSI specs hosted
by the T10 consortium (http://www.t10.org/scsi-3.htm)

 Can any1 help me out in this..??
 From where to start?? using that interface, i want to develop one
 small application..

It might be also useful for you to take a look at iSCSI Target product
and their source code. That should give you some ideas on how
to implement an iSCSI target (if that is also what you are looking for).

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Re: Need help

2009-01-05 Thread Nikhil Talpallikar
Hi Prachi,
If you need help asap u can share what specifically you want to do.

cheers,
nikhil

On Tue, Jan 6, 2009 at 3:59 AM, Konrad Rzeszutek kon...@virtualiron.comwrote:


 On Mon, Jan 05, 2009 at 12:15:11AM -0800, Prachi Bodke wrote:
 
  Hi all,
  I am new to this iSCSI..
  I want to study the iSCSI interface with Linux.

 Take a look at RFC 3720, then at RFC 3720.

 It might also be useful to get acquainted with the SCSI specs hosted
 by the T10 consortium (http://www.t10.org/scsi-3.htm)

  Can any1 help me out in this..??
  From where to start?? using that interface, i want to develop one
  small application..

 It might be also useful for you to take a look at iSCSI Target product
 and their source code. That should give you some ideas on how
 to implement an iSCSI target (if that is also what you are looking for).

 



-- 
If you fool me once shame on you. If you fool me twice shame on me.

  \|||/
 (o o)
ooO-(_)-Ooo

Nikhil Talpallikar
--talli ;)

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