PDA

View Full Version : iSCSI questions


McDeth
10-10-2008, 12:21 AM
Hi all, just popping in after a few hours of messing around trying to get iSCSI set up on my windows server.

To start, I have no background in i SCSI or any SAN infrastructure outside of the documentation that is included with the i SCSI target software I have downloaded (free windows versions SANmelody/Starwind).

I have been able to successfully set up a target on my server, and share my two logical storage drives (that are a single spanned volume in Windows) as a bridge device. I can connect to both drives from any windows machine, and access my stored files just fine. The problem comes in when I have more than one initiator trying to access files/save files over the same connection to the shared hard drives. Basically it boots the non-writing connection off, and won't come back up until I manually disconnect the iSCSI connection and reconnect it, but even then, the changes that were written by the second initiator never appear for the first computer.

Another issue I am running into is when transferring large files (over 1gb). What happens is that my computer starts to transfer the file, but it becomes unresponsive after a short time. I can't browse, or start any new applications. I've tried leaving it alone for up to 15 minutes and nothing ever happens, the i SCSI connection just sits there xfering a file at over 30MB/s, only a restart will stop the xfer.

What am I doing wrong here that is creating this problem? I realize that I'm not being too descriptive, and I apologize in advance, like I said I'm not too familiar with i SCSI. On that same vein, does anyone know of a good website/forum that deals primarily with SAN's and the configuration of i SCSI SAN's in particular?

nitrobass24
10-10-2008, 01:05 AM
well with the free version of starwind, you can only have a single connection to your iscsi volume....its a limitation in the software to get you to buy the full version.

McDeth
10-10-2008, 01:22 AM
It just won't deny the second connection, but will override the first? That seems strange...

Well, even then, if I only use one initiator instead of two, changes aren't being written to the disk in question, at least not until I manually disconnect the iSCSI session from the target.

What would be the reason for this? And it's not actually the free edition, it says Evaluation License and has a countdown from 30 days, so that would tell me it's not the free edition.

Any idea on the issue with the transfer that never ends? That one has me stumped.