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06-30-2015 10:38 AM
06-30-2015 10:38 AM
MSA2040 hot plug D2700
We have an MSA2040 in production nothing attached. Now we have a D2700 to be attached to it.
Per the document for the D2700 "User Guide" it states, under connecting the SAS cables, to ensure the controller is powered down.
Is this a precaution of the possible unknown or is it a fact the D2700 can not safely be hot pluged into the MSA2040?
Thx
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07-15-2015 09:45 PM
07-15-2015 09:45 PM
Re: MSA2040 hot plug D2700
I had the same situation. One MSA2040 iSCSI and new D2700. Hot plugging worked fine for me.
Also I have attached D2700 and P2000 LFF enclosure to P2000 G3 on the fly and the only issue I had some false alarms reported in SMU about power supplies on the newly attached enclosures, but restarting management controllers fixed the problem.
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07-16-2015 07:54 AM
07-16-2015 07:54 AM
Re: MSA2040 hot plug D2700
When plugging in the D2700 with the controller up the other day, as mentioned, a few events were triggered as follows:
MSA 2040 SAN Error: DRIVE_ENCLOSURE
EVENT ID:#B50148
EVENT CODE:168
MSA 2040 SAN Error: FRU_PROBLEM
EVENT ID:#B50149
EVENT CODE:314
Storage system reported the tray and drives just fine.
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07-16-2015 03:08 PM
07-16-2015 03:08 PM
Re: MSA2040 hot plug D2700
I just wanted to stress out one thing - the hot add procedure is different for different cabling types.
Basically, MSA and enclosures can be cabled using straight-through or fault-tolerant methods.
The MSAs I expanded with new enclosures were using straight-through cabling.
However, for fault-tolerant cabling the hot-add procedure is a bit different. Here is what HP recommends
The procedure to hot add a disk enclosure is the following:
NOTE:It is strongly recommend to take a full backup , then schedule this task when usage is down to the absolute minimal activity.
- No hard disk should be installed on the brand new enclosures, doing so would push the P2000 to configure too many different components at once.
- Shutdown controller A, re-cabling the path for controller “A”, and then reseat the controller to start it.
- Wait at least for 2 minutes to confirm that controller A has booted and has found the new enclosures.
- Shutdown controller B, re-cabling the path for controller “B”, and then reseat the controller to start it.
- Wait at least for 2 minutes to confirm that controller B has booted and has found the new enclosures.
- Check the enclosurefirmware, if outdated, update them to the current firmware version.
- Then add the hard disks, no more than two at a time, allow 20 to 30 seconds , then confirm that SMU has recognized them.
- Repeat this operation until all the disks have been installed and detected