Unsolved
This post is more than 5 years old
2 Intern
•
470 Posts
0
1672
August 11th, 2012 16:00
LUN could not be created: SPA A: unit too large
when I try to create a 1TB lun on a RG, it gives me an error
LUN XX could not be created: SP A: Unit too large.
any idea?
thanks
No Events found!
tdubb123
2 Intern
•
470 Posts
0
August 11th, 2012 16:00
this is what I see
why would there not be enough contiguous space?
1 Attachment
image001.png
tdubb123
2 Intern
•
470 Posts
0
August 11th, 2012 16:00
will defraging the rg affect other luns?
dynamox
9 Legend
•
20.4K Posts
0
August 11th, 2012 16:00
is there enough contiguous space in the raid group ?
dynamox
9 Legend
•
20.4K Posts
0
August 11th, 2012 16:00
you must have deleted LUNs from this raid group. You will need to run defrag and only then you will get 1.8TB of contiguous space back. This is SATA so defrag will take a while to complete.
dynamox
9 Legend
•
20.4K Posts
0
August 11th, 2012 17:00
i don't remember what the default priority is but you can lower it to not impact performance.
Vipin VK
2 Intern
•
812 Posts
0
August 11th, 2012 22:00
Defragmentation will not affect the content of other LUNs on the RG. It simply move the empty spaces from the RG to one end to make maximum possible contiguous space (moving all LUNs towards one end).
As this operation is going on there will be a performance impact as the SP utilization will be more. It depends on the defragmentation priority you set on the RG. By default it will be set to medium . Other values available are Low (will have lowest performance affect) and High (will have maximum performance affect).
If you don't want to go for defragmentation and want to have a LUN of more capacity, you may go for creating a metaLUN
Vipin V.K