by nia » Tue Feb 02, 2010 3:41 am
See my post regarding iSCSI Target here:
I am attempting to connect a Solaris 10 system to a Linux mhvtl iSCSI target, but can not attach to the medium Changer. Unlike Tape drives which do come online:
Here are the steps that I take to configure the Solaris Initiator:
As you can see, the tape drives come online but not the medium changer:
I was able to test the tape drives using mt and tar. They were fine, but the medium changer is not there.
After much investingating I found that Solaris is unable to find a driver to load for the medium changer ..
And after I ran across this this useful doc from Sun, the problem was fixed.
I copy/paste the doc here as well:
Success: Now I can see the medium changer device.
Also, another resource suggested that additional entries should be added to /kernel/drv/sgen.conf file
by ghazih80 » Wed Feb 03, 2010 2:13 am
Nice write up ..
by nia » Wed Feb 03, 2010 2:34 am
Thanks, great software.
by tsunami_liao » Fri Mar 26, 2010 11:51 pm
greate! I successful bring the changer online by following your instraction, but how can I let the netbackup recognize them?
seems the solaris will use sgen driver for the iscsi device, but netbackup is not support sgen driver.
by nia » Sat Mar 27, 2010 4:27 am
Don't you have tape devices under /dev/rmt/ and library under /dev/scsi/changer/ ? have you tried to use them in netbackup ? Netbackup uses tape devices as /dev/rmt/*cbn
by root » Sun Mar 28, 2010 3:23 pm
Try - /usr/openv/volmgr/bin/sgscan
by prejdarov » Fri Apr 16, 2010 6:39 pm
Hmm, NetBackup doesn't seem to like /dev/scsi/changer/cXtXdX as a robot file. Complains that cannot communicate with the robot.
by markh794 » Wed May 05, 2010 2:29 am
NetBackup uses two interfaces to tape drives.
The normal 'st' for data.
The 'sg' path for out-of-band-management (TapeAlert etc).
Starting with NetBackup 6.0, BOTH st & sg drivers have to be correctly configured for successful operation.
Unfortunately, the 'sg' driver supplied with NetBackup does NOT support (read does NOT work) iSCSI attached devices.
If you would like to see this added, please follow the following instructions:
How to submit an Enhancement Request for NetBackup - http://seer.entsupport.symantec.com/docs/318008.htm
(Mind you, who in their right mind would attach iSCSI tape drives/libraries in a production enterprise environment. iSCSI is great for testing & virtual hosts. Most enterprise environments use fibre-channel.)
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