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тАО03-31-2011 09:27 AM
тАО03-31-2011 09:27 AM
We cannot reboot production servers in order to add disk. What are we doing wrong?
Here's some output from the smh about one of the disks in question:
Detail View of Disk: 64000/0xfa00/0x8
-----------------------------------------------------------------------------------------------------------------
LUN H/W Path 64000/0xfa00/0x8
Persistent Device File /dev/disk/disk12
Legacy Device File(s) /dev/dsk/c31t0d0;/dev/dsk/c30t0d0;/dev/dsk/c32t0d0;/dev/dsk/c33t0d0;
Legacy H/W Path(s) 0/6/0/0/0/0/4/0/0/0.99.5.19.0.0.0;0/6/0/0/0/0/4/0/0/0.99.80.19.0.0.0;0/7/
Device Health offline
Device Identifier
Alias
World Wide ID 0x50060160bb20186150060160bb201861
Size 0 GB
Block Size (bytes)
Capacity (blocks)
Use unused
VG Name -
Device Type RAID
Instance Number 12
Total Path Count 4
Device Class disk
Driver esdisk
State UNOPEN
Vendor "DGC "
Product "LUNZ "
Serial Number "APM00091400581"
Firmware Revision "0428"
SCSI Protocol Revision
Solved! Go to Solution.
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тАО03-31-2011 10:28 AM
тАО03-31-2011 10:28 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
I thought I posted a few weeks ago a URL showing what Storage Arrays are officially supported under 11.31.
What are your EMC models?
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тАО03-31-2011 10:49 AM
тАО03-31-2011 10:49 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
Feel free to call both HP and EMC support and explain them your dilemma and have them suggest some solutions.
UNIX because I majored in cryptology...
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тАО03-31-2011 11:38 AM
тАО03-31-2011 11:38 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
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тАО03-31-2011 11:56 AM
тАО03-31-2011 11:56 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
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тАО03-31-2011 12:00 PM
тАО03-31-2011 12:00 PM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
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тАО04-01-2011 05:04 AM
тАО04-01-2011 05:04 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
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тАО04-01-2011 05:18 AM
тАО04-01-2011 05:18 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
Your EMC Arrays are all suported alright.
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тАО04-01-2011 10:13 AM
тАО04-01-2011 10:13 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
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тАО04-01-2011 10:21 AM
тАО04-01-2011 10:21 AM
Re: EMC SAN Disk "NO_HW" on 11.31 - Fixed by reboot?
(1) Check the SAN --- find out from the Switch Logs if your FC HBA connections are getting logged off or have some disconnects. This should also be manifesting in syslog (dmesg) or /var/adm/syslog/syslog.log
(2) Verify (during times they work normally) if the disks are truly multipathed -- meaning: for each DSF persistend EMC device - /dev/rdsk/diskNNN -- that there are 2 devices. I can;t recall the syntax but it is one of the ioscan arguments. If your dsf devices are not multipathed -- then there may lie your issues. Consult EMC manuals to see if there are special "scsimgr" tweakables -- IF you are indeed NOT using PowerPath.
Question though -- what typical disk device do you usually use out of these EMC LUNs? Can you give a sample? Is it /dev/rdisk/diskNNN ?