70-246 · Question #174
The storage pool is a set of disks on which the DPM server stores the replicas and recovery points for the protected data. Planning the storage pool involves calculating capacity requirements and…
The correct answer is B. USB/1394 disks. DPM does not support USB or IEEE 1394 (FireWire) disks as storage pool members because these bus types lack the reliability and performance characteristics required for backup replica storage.
Question
The storage pool is a set of disks on which the DPM server stores the replicas and recovery points for the protected data. Planning the storage pool involves calculating capacity requirements and planning the configuration of the disks. Which of the following can you NOT use for the storage pool:
Options
- ADirect attached storage (DAS)
- BUSB/1394 disks
- CiSCSI storage device or SAN
- DFiber Channel storage area network (SAN)
How the community answered
(47 responses)- A2% (1)
- B94% (44)
- C4% (2)
Why each option
DPM does not support USB or IEEE 1394 (FireWire) disks as storage pool members because these bus types lack the reliability and performance characteristics required for backup replica storage.
Direct attached storage using SCSI, SAS, or SATA is fully supported by DPM as a storage pool disk type.
DPM explicitly excludes USB and IEEE 1394 (FireWire) connected disks from the storage pool because these interfaces are designed for portable consumer devices, not enterprise backup storage, and DPM requires disks to be managed by the Windows Disk Management subsystem in a way that USB/1394 disks do not reliably support.
iSCSI and SAN storage are explicitly supported DPM storage pool options, providing network-based block storage.
Fibre Channel SAN is a supported high-performance storage option for DPM storage pools.
Concept tested: DPM storage pool supported disk types
Source: https://learn.microsoft.com/en-us/previous-versions/system-center/system-center-2012-R2/hh758173(v=sc.12)
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