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In your scenario, which hot spare drive would the array first select to replace the failed drive?

After reviewing the design for their new VNX, your customer has requested further explanation of the hot spare algorithm used by the array. You propose the following scenario:

RAID group 200 consists of five 600 GB 10K SAS drives in a RAID 5 configuration. Within this RAID group there are three 25 GiB LUNs. One of the five drives has just failed.

In your scenario, which hot spare drive would the array first select to replace the failed drive?

What could be done to simplify the management of backups and clones?

A customer is planning to use EMC NetWorker integrated with Data Domain to backup their
enterprise. Data Domain will be used to replicate backups to an offsite location to satisfy
regulatory requirements. The customer is concerned about the difficulty in managing their backups
and backup clones with two interfaces.
What could be done to simplify the management of backups and clones?