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scsictl error when setting immediate_reporting
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12-28-2009 07:20 AM
12-28-2009 07:20 AM
scsictl error when setting immediate_reporting
scsictl error when setting immediate_reporting
root@prdmarcs:/sbin/init.d $ scsictl -m ir=0 -m queue_depth=8 /dev/rdsk/c26t0d0
scsictl: Device ioctl (set immediate_report) error: I/O error
root@prdmarcs:/sbin/init.d $
The immediate_reporting value remains 1. It was set to 0 by default when the devices were created. We tried rebooting the machine. How can we force immediate_reporting to 0?
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12-28-2009 04:05 PM
12-28-2009 04:05 PM
Re: scsictl error when setting immediate_reporting
Re: scsictl error when setting immediate_reporting
It doesn't appear that I can change that parameter on my system for SAN disks, though I can for direct-attached disks.
HTH
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12-29-2009 04:50 AM
12-29-2009 04:50 AM
Re: scsictl error when setting immediate_reporting
Re: scsictl error when setting immediate_reporting
We are using HP-UX 11.11 and the storage system is an LSI disk array.
Thanks,
Curtis
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12-29-2009 11:01 AM
12-29-2009 11:01 AM
Re: scsictl error when setting immediate_reporting
Re: scsictl error when setting immediate_reporting
Wow, that sure doesn't help much. LSI Corp. has dozens of products from ICs used in drives to HBAs and RAID controllers, etc. scsictl is used only with real disks, not LUNs presented as virtual disks by a smart array controller. Is your LSI array just a bunch of disks in a small cabinet with a simple SCSI cable? Or can you configure the array to specify the size of the disk(s) presented to your system? I suspect that this question would be answered more accurately from LSI.
Bill Hassell, sysadmin
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12-30-2009 10:47 AM
12-30-2009 10:47 AM
Re: scsictl error when setting immediate_reporting
Re: scsictl error when setting immediate_reporting
We resolved the problem by going into the SANTricity software that is used to manage the array, right-clicking on the LUN, going into the cache settings, and disabling the "write-cache enable" setting. Then, we were successful in setting the immediate_report value to 0 through the scsictl command. We have an LSI SAN connected by two fibre channel cables to a switch and the switch is connected by two fibre channel cables each to our HP-UX servers, which run HP-UX 11.11.
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