‎Avoid 0_0 while mirroring | DELL Technologies

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KReinhard

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KReinhard

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July 24th, 2013 06:00

Avoid 0_0 while mirroring

Can someone explain to me, why i have to avoid mirroring over DPE or DAE-OS enclosure 0_0 ?

Thanks a lot...

Karl

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Rainer_EMC
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Posted July 24th, 2013 06:00
Because on a sudden power loss the disks in the DPE/DAE are kept up longer by the SPS to de-stage write cache to the vault
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Roger_Wu
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Posted July 24th, 2013 19:00
Disks 0_0 (DPE) have SPS protected, while 0_1, 0_2... (DAEs) haven't. The data would be inconsistent if there were a power outage.
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KReinhard
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Posted July 25th, 2013 00:00
Ok, thanks a lot for your reply. Now i understand why...

Karl