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06-20-2013 07:05 AM
06-20-2013 07:05 AM
Re: EVA Disk Protection Level.
Trying to keep it simple ...
With single or double you reserve space within a diskgroup.
If a disk fails (and has RAID1 data on it), the data will be moved from this bad disk and the "partner" disk to another pair of disks, hence 2 other disks are needed. So "single" means the space of 2 disks reserved on all remaining (!) disks within the diskgroup.
If a disk failes, it will be recovered into the remaining available space first, but you have the additional "protection level" space, even if the array is already at 100%.
This means the array has 100% space for data + reserved spaced for recovery (single or double level).
Hope you understand ...
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!
With single or double you reserve space within a diskgroup.
If a disk fails (and has RAID1 data on it), the data will be moved from this bad disk and the "partner" disk to another pair of disks, hence 2 other disks are needed. So "single" means the space of 2 disks reserved on all remaining (!) disks within the diskgroup.
If a disk failes, it will be recovered into the remaining available space first, but you have the additional "protection level" space, even if the array is already at 100%.
This means the array has 100% space for data + reserved spaced for recovery (single or double level).
Hope you understand ...
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!
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