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тАО06-09-2009 11:20 PM
тАО06-09-2009 11:20 PM
When i create a new vdisk, can i see the disk that is used on EVA 4400?
How can i make sure the pair of RAID 1 using different disk at EVA?
FYI, i only create 1 disk group.
Thanks,
Solved! Go to Solution.
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тАО06-10-2009 12:06 AM
тАО06-10-2009 12:06 AM
Solutionthis is done by the controller firmware. The process is much more complex, but the controller will pair two disks together to store VRAID 1 data. The data on a VRAID 1 disks is definitely stored on two different disks. Depending on the number of enclosures and disks, those two disks are located in different enclosures, but in one disk group.
Hope this helps.
Best regards,
Patrick
Patrick
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тАО06-10-2009 04:00 AM
тАО06-10-2009 04:00 AM
Re: disk on RAID
And please note that there is NO redundancy for VRAID-0! No matter what you get told about virtualization, the so-called 'protection level', RSS, RSTORE, bla bla bla...
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тАО06-10-2009 07:41 PM
тАО06-10-2009 07:41 PM
Re: disk on RAID
I have attached a White Paper on this. Please go through it and you will have a better idea on how things work on EVA's
Regards,
Sunny
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тАО06-10-2009 09:16 PM
тАО06-10-2009 09:16 PM
Re: disk on RAID
thanks for your responses.
Btw, what is purpose for disk drive failure protection at EVA? Is it used to for redundancy too?
Thanks,
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тАО06-10-2009 10:33 PM
тАО06-10-2009 10:33 PM
Re: disk on RAID
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тАО06-11-2009 01:10 AM
тАО06-11-2009 01:10 AM