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тАО05-31-2011 10:05 AM
тАО05-31-2011 10:05 AM
I have a EVA4000 with disk of 146GB in one diskgroup. The diskgroup was created with disk drive failure protection = SINGLE. Recently I purchased 4 disk drives of 300GB, for include in the same diskgroup (I can not create a new diskgroup, because the minimum number of disks for diskgroup is 8).
My questions are:
By including the new disks, the diskgroup will set aside an amount equal to or greater than 300GB?.
If I decide to change the protection level to NONE, what precautions should I take before making the change?
My questions are:
By including the new disks, the diskgroup will set aside an amount equal to or greater than 300GB?.
If I decide to change the protection level to NONE, what precautions should I take before making the change?
Solved! Go to Solution.
2 REPLIES 2
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тАО05-31-2011 10:50 AM
тАО05-31-2011 10:50 AM
Solution
If you add a single 300GB disk drive to that disk group, it will increase the space reservation for the so-called "protection level" from 292GB to 600GB (Hardware GigaBytes, to be precise - CV-EVA will show Software GigaBytes, so multiply by 93%).
You should NOT lower the "protection level", because then YOU have to make care that enough space is kept free in the disk group to successfully recover from a disk drive failure.
You should NOT lower the "protection level", because then YOU have to make care that enough space is kept free in the disk group to successfully recover from a disk drive failure.
.
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тАО05-31-2011 11:57 AM
тАО05-31-2011 11:57 AM
Re: Change disk drive failure protection EVA4K
Thank Zessin, I will fulfill your recommendation.
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