Figure 23 Ftv Configuration; Table 33 The Maximum Number And The Maximum Capacity Of Ftsps - Fujitsu ETERNUS DX S5 Series Design Manual

2. Basic Functions
Operations Optimization (Virtualization/Automated Storage Tiering)
Figure 23 FTV Configuration
SSD
FTSP (High tier)
Flexible Tier Pool (FTRP)
•
An FTRP is a management unit for FTSP to be layered. Up to three FTSPs can be registered in one FTRP. This
means that the maximum number of layers is three.
The priority orders can be set per FTSP within one FTRP. Frequently accessed data is stored in an FTSP with a
higher priority. Because FTSPs share resources with TPPs, the maximum number of FTSPs which can be created
is decreased when TPPs are created.
For data encryption, specify encryption for a pool when creating an FTRP or create an FTSP with a Self
Encrypting Drive (SED).
• Flexible Tier Sub Pool (FTSP)
An FTSP consists of one or more RAID groups. The FTSP capacity is expanded in units of RAID groups. Add RAID
groups with the same specifications (RAID level, drive type, and number of member drives) as those of the
existing RAID groups.
The following table shows the maximum number and the maximum capacity of FTSPs that can be registered
in an ETERNUS DX.
Table 33 The Maximum Number and the Maximum Capacity of FTSPs
Item
Maximum number of Flexible Tier Pools
Maximum number of Flexible Tier Sub Pools (*1)
Maximum capacity of the Flexible Tier Sub Pools
(*2)
Total capacity of the Flexible Tier Volumes (*3)
Chunk
Chunk
SAS disk
FTSP (Middle tier)
FTRP (Parent pool)
DX100 S5
30
72
4,096TB
(4PB)
4,096TB
(4PB)
67
FTV
Nearline SAS disk
FTSP (Low tier)
: RAID group
DX200 S5 DX500 S5 DX600 S5
30 60 64
132 256 256
6,144TB 16,384TB 24,576TB
(6PB) (16PB) (24PB)
6,144TB 16,384TB 24,576TB
(6PB) (16PB) (24PB)
DX900 S5
64
256
131,072TB
(128PB)
131,072TB
(128PB)
Design Guide