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тАО12-06-2005 12:04 AM
тАО12-06-2005 12:04 AM
a few minutes ago I got a heart attack. I want to expand a LUN on a MSA1000 (2 Controller, 14 Disks, 7x 72, 7x 146). 8 servers (7 BL30p, 1 DL360 G4) are connected to the MSA1000, and all servers boot from it. There are 20 LUNs on that MSA1000 and I wanted to expand LUN15 from 25GB to 100GB. There is enough free space to do this operation. I launched ACU on the DL360 and expand the logical volume. After a pressed the "save" button, all servers that are connected to the MSA1000 stopped respondig. Some servers reboot after a BSoD. I saw that there was heavy load on the MSA1000, but there was no messages on the display on the active controller (..expanding Volume #15...). After I logged into the CLI of the MSA, I was trying to run the command "show this_controller". After that, the CLI wasn┬┤t responding. After a reset of the MSA1000 all the servers came up back to normal operation.
My Question: What was this? Any ideas?
Regards,
Patrick
PS: Sorry for my poor english. :)
Patrick
Solved! Go to Solution.
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тАО12-06-2005 07:02 PM
тАО12-06-2005 07:02 PM
Re: MSA1000 controller crash due LUN Expansion
Explain your MSA Array configuration (Array A...., Array B...). Do you use BFS (boot from SAN)? What is your rebuild/expansion priority? I think that there was overload of MSA controller and it hang all operation.
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тАО12-06-2005 07:13 PM
тАО12-06-2005 07:13 PM
Re: MSA1000 controller crash due LUN Expansion
see the attached file (output from "show tech_support"). Please note that I removed parts that would point to our customer. ;) Thanks for your help.
Regards,
Patrick
Patrick
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тАО12-06-2005 09:21 PM
тАО12-06-2005 09:21 PM
SolutionCLI> show globals
Global Parameters:
System Name: M**** SAN Diskarray
Rebuild Priority: high
Expand Priority: high
Expand operation must be perfomed when working load is minimum.
I advise to update firmware of MSA to current release 4.48
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тАО12-07-2005 04:55 AM
тАО12-07-2005 04:55 AM
Re: MSA1000 controller crash due LUN Expansion
thanks for reply. I will try to upgrade the firmware and reduce the expand and rebuild priority.
Regards,
Patrick
Patrick