DEE-1111 試験問題を無料オンラインアクセス

Which two factors define Capacity Management?

• A.Number of FE ports and number of SCM drives
  B Number of BE ports and I/O capacity
• B.Storage capacity and number of SCM drives
• C.I/O capacity and storage capacity

A drive failure has occurred at a customer environment, and a service request has been opened with customer support. A drive failure has occurred at a customer environment, and a service request has been opened with customer support.
Order the steps in sequence as part of key management.

正解：

1 - Spare drive invoked against failed drive
2 - 1st entry in audit log
3 - Sparing operation is completed
4 - Key is deleted from the repository when failed drive is removed
5 - 2nd entry in audit log
6 - Key is generated for replacement drive when installed
Reference:
Dell EMC PowerMax and VMAX All Flash: Data at Rest Encryption

A host is issuing I/O to a PowerMax.
What happens if the cache space fills up?

• A.Cache is permanently flushed
• B.Cache is temporarily disabled
• C.I/O will be queued until an empty cache slot is available
• D.I/O will be serviced at the speed of the destination device

A storage administrator is investigating non-linear variations in throughput when zoning additional hosts to certain front-end adapters. They notice a certain performance characteristic having 10 identical hosts zoned to the same FA ports. After adding the 11th host, the throughput sometimes drops more than 20%.
What is the most likely cause of this behavior?

• A.System Write Pending > 75%
• B.Average disk queue length on the hosts exceed 3
• C.I/O sizes over 128 KiB are being used on the hosts
• D.QFULL responses of the FA ports

What is the correct sequence of actions that take place on a Write Miss?

正解：

1 - Host sends requests to FE director and no cache slots are found
2 - FE finds available slot by polling
3 - FE sends data from host to mirrored cache locations
4 - FE responds to host to acknowledge successful write
5 - BE destages data as a high-priority task to make slots available
6 - BF destages new data to disk at a later time