Table 13 Chunk Size According To The Configured Tpp Capacity; Table 14 Levels And Configurations For A Raid Group That Can Be Registered In A Tpp - Fujitsu ETERNUS DX500 S4/DX600 S4 Design Manual

2. Basic Functions
Operations Optimization (Virtualization/Automated Storage Tiering)
The following table shows the TPP chunk size that is applied when TPPs are created.

Table 13 Chunk Size According to the Configured TPP Capacity

Setting value of the maximum pool capacity
ETERNUS DX500 S4/DX500 S3
Up to 384TB
Up to 768TB
Up to 1,536TB
Up to 3,072TB
*1: Chunk size is for delimiting data. The chunk size is automatically set according to the maximum pool ca-
pacity.
To perform encryption, specify encryption by firmware when creating a TPP, or select the Self Encrypting Drive
(SED) for configuration when creating a TPP.
The following table shows the RAID configurations that can be registered in a TPP.

Table 14 Levels and Configurations for a RAID Group That Can Be Registered in a TPP

RAID level
RAID0
RAID1
RAID1+0
RAID5
RAID6
RAID6-FR
Thin Provisioning Volume (TPV)
•
The maximum capacity of a TPV is 128TB. Note that the total TPV capacity must be smaller than the maximum
capacity of the TPP.
When creating a TPV, the Allocation method can be selected.
- Thin
When data is written from the host to a TPV, a physical area is allocated to the created virtual volume. The
capacity size (chunk size) that is applied is the same value as the chunk size of the TPP where the TPV is
created. The physical storage capacity can be reduced by allocating a virtualized storage capacity.
Thick
-
When creating a volume, the physical area is allocated to the entire volume area. This can be used for vol-
umes in the system area to prevent a system stoppage due to a pool capacity shortage during operations.
In general, selecting "Thin" is recommended. The Allocation method can be changed after a TPV is created.
Perform a TPV/FTV capacity optimization if "Thick" has changed to "Thin". By optimizing the capacity, the area
that was allocated to a TPV is released and the TPV becomes usable. If a TPV/FTV capacity optimization is not
performed, the usage of the TPV does not change even after the Allocation method is changed.
The capacity of a TPV can be expanded after it is created.
For details on the number of TPVs that can be created, refer to
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
ETERNUS DX600 S4/DX600 S3
Up to 1,024TB
Up to 2,048TB
Up to 4,096TB
Up to 8,192TB
Number of configurable drives
4 (4D)
2 (1D+1M)
4 (2D+2M), 8 (4D+4M), 16 (8D+8M), 24 (12D+12M)
4 (3D+1P), 5 (4D+1P), 7 (6D+1P), 8 (7D+1P), 9 (8D+1P), 13 (12D+1P)
6 (4D+2P), 8 (6D+2P), 9 (7D+2P), 10 (8D+2P)
13 ((4D+2P) ´2+1HS), 17 ((6D+2P) ´2+1HS)
31 ((8D+2P) ´3+1HS), 31 ((4D+2P) ´5+1HS)
Copyright 2019 FUJITSU LIMITED
"Volume" (page
44
Chunk size (*1)
21MB
42MB
84MB
168MB
Recommended config-
urations
—
2 (1D+1M)
8 (4D+4M)
4 (3D+1P), 8 (7D+1P)
8 (6D+2P)
17 ((6D+2P) ´2+1HS)
26).
P3AM-7722-25ENZ0