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тАО03-13-2006 08:10 AM
тАО03-13-2006 08:10 AM
NathanK
Solved! Go to Solution.
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тАО03-13-2006 11:16 AM
тАО03-13-2006 11:16 AM
Re: EVA 8000 shelf and disk add
How many shelves are you adding?
You should continue to add disks in multiples of 8, but now that you may have a number of shelves not equal to 8, you might need to re-arrange some existing disks to get the best RSS state(s).
I would say it is probably best to add an even number of shelves like 2 or 4, rather then just 1 shelf. Adding 4 shelves would give you better flexibility when having to move stuff around.
Steven
HP Master ASE, Storage, Servers, and Clustering
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тАО03-14-2006 12:11 AM
тАО03-14-2006 12:11 AM
Re: EVA 8000 shelf and disk add
Before doing the steps below take a good backup!
Steps:
1. Find out your RSS layout.
2. Mark each disk with its RSS membership.
3. Power down the EVA
4. Add the new enclosures
5. Redistribute the disk over all enclosures and in a way that only one member an RSS sits in one enclosure.
6. Power up the EVA; it will recognize the new layout and find the disks and disk groups
7. Add new drives in all enclosures
Cheers
Peter
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тАО03-14-2006 12:54 AM
тАО03-14-2006 12:54 AM
Re: EVA 8000 shelf and disk add
Also, I never thought to ask before. Can you add a disk shelf without taking the array down?
NathanK
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тАО03-14-2006 01:01 AM
тАО03-14-2006 01:01 AM
SolutionYou can even power an array down, swap both controllers and after a power-up it finds it disks (I know it ;-)
While not in production I once did not want to power cycle, so I increased the disk replacement delay and moved disks while the array was running. A hell of beeps, but I didn't loose a disk.
I have also added disk enclosures while the system was up, but not on an 8000. Due to the loop switches it should be rather safe unless you confuse the loops.
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тАО03-14-2006 01:12 AM
тАО03-14-2006 01:12 AM
Re: EVA 8000 shelf and disk add
Right now my RSS's are perfect..slot 1 of each enclosure is in one RSS and it continues all the way across to slot 13. So I imagine that I will have to first add the disks that I require, incorporate them into the disk group, and then locate the new RSS's. If they are not poperly distributed, I go through the steps that were previously described. Correct?
NathanK
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тАО03-14-2006 01:20 AM
тАО03-14-2006 01:20 AM
Re: EVA 8000 shelf and disk add
I have successfully done this on an EVA-3000, but I would not have been able to obtain a 'parity state' anyway.
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тАО03-14-2006 01:26 AM
тАО03-14-2006 01:26 AM
Re: EVA 8000 shelf and disk add
NathanK