Table 18 The Maximum Number And The Maximum Capacity Of Ftsps; Table 19 Levels And Configurations For A Raid Group That Can Be Registered In A Ftsp - Fujitsu ETERNUS DX100 S4 Design Manual

2. Basic Functions
Operations Optimization (Virtualization/Automated Storage Tiering)
The following table shows the maximum number and the maximum capacity of FTSPs that can be
registered in an ETERNUS DX.

Table 18 The Maximum Number and the Maximum Capacity of FTSPs

Item
The maximum number of Flexible Tier Pools
The maximum number of Flexible Tier Sub
Pools
The maximum capacity of the Flexible Tier Sub
Pool
Total capacity of the Flexible Tier Volume
*1 : The maximum total number of Thin Provisioning Pools and FTSPs.
*2: The maximum pool capacity is the capacity that combines the FTSP capacity and the Thin
Provisioning Pool capacity in the ETERNUS DX. The maximum pool capacity of an FTRP is the
same as the maximum pool capacity of a Flexible Tier Sub Pool.
The RAID levels and the configurations, which can be registered in the FTSP, are the same as
those of a TPP. The following table shows the RAID configurations that can be registered in an
FTSP.

Table 19 Levels and Configurations for a RAID Group That Can Be Registered in a FTSP

RAID level
RAID0
RAID1
RAID1+0
RAID5
RAID6
RAID6-FR
Flexible Tier Volume (FTV)
•
An FTV is a management unit of volumes to be layered. The maximum capacity of an FTV is
128TB. Note that the total capacity of FTVs must be less than the maximum capacity of FTSPs.
When creating an FTV, the Allocation method can be selected.
- Thin
When data is written from the host to an FTV, the physical area is allocated to a created virtual
volume. The physical storage capacity can be reduced by allocating a virtualized storage ca-
pacity.
- Thick
When creating a volume, the physical area is allocated to the entire volume area. This can be
used for volumes 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 an FTV
is created.
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
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 2023 Fujitsu Limited
ETERNUS DX100 S4/DX100 S3
30
72 (*1)
2,048TB (*2)
2,048TB
51
ETERNUS DX200 S4/DX200
S3
30
132 (*1)
Recommended con-
figurations
-
2 (1D+1M)
8 (4D+4M)
4 (3D+1P), 8 (7D+1P)
8 (6D+2P)
17 ((6D+2P) ´2+1HS)
P3AM-7642-32ENZ0