Whether SAN and NAS resources of unified storage V300R002 can reside in the same storage pool

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SAN and NAS resources of unified storage V300R002 cannot reside in the same storage pool.
SAN resources are independent of NAS resources. Storage pools are created specifically for either LUNs or file systems. That is, LUNs and file systems cannot coexist in one storage pool but can reside in the same disk domain. The capacity of a storage pool can be dynamically expanded.

Other related questions:
Whether the SAN resources and NAS resources reside in the same storage pool
SAN resources are independent of NAS resources. Storage pools are created specifically for LUNs or file systems. That is, LUNs and file systems cannot coexist in one storage pool but can reside in the same disk domain. The capacity of the storage pool can be dynamically expanded.

V3 series unified storage may fail to copy a file in the same preset size as the directory where the storage resides. What are the causes and troubleshooting methods?
When the Windows program copies local files to a file system, the file block size of the CIFS client is 4 KB, whereas the default file system block size of the storage system is 64 KB. Any copied file smaller than 64 KB occupies 64 KB space in the file system, which is a waste of space. Therefore, you are advised to adjust the file system block size to ensure the full use of storage space.

Source of snapshot resource pool space of V3/T series unified storage systems and results of storage pool space being used up
The LUN snapshot resource pool uses the internal space of the storage pool. When the space usage of the storage pool reaches the high watermark, an alarm is generated. When the space of the storage pool is used up, the snapshot function is disabled. Hosts can still access LUNs to which space has been allocated. Snapshots of the file system use the space of the file system. When the percentage of space used for storing file system snapshots exceeds the preset percentage, no alarm is generated, and the available capacity of the file system is used. When the used capacity of the file system exceeds the threshold, an alarm is generated.

Networking of OceanStor T Series unified storage
For the networking of OceanStor T Series unified storage, see Storage Journal -Typical iSCSI Networks.

Recommended configuration for storage pools of the OceanStor V3 storage
Recommended configuration for storage pools of OceanStor V3: SAS disks - Mission critical storage: RAID 6 (8D+2P/4D+2P); - Mid-range and entry-level storage: RAID 5 (8D+1P/4D+1P) NL-SAS disks - RAID 6 (8D+2P/4D+2P) SSDs - RAID 10

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