Smart Setup Wizard; Table 43 Guideline For The Number Of Drives And User Capacities (When 1.92Tb Ssds Are Installed) - Fujitsu ETERNUS AF250 Design Manual

1. Function

Smart Setup Wizard

Smart Setup Wizard
The Smart Setup Wizard is a wizard that simplifies the creation of Thin Provisioning Pools and configuration of
host affinity for configurations enabled with Thin Provisioning.
For the procedure on configuration using the Smart Setup Wizard, refer to "Configuration Guide (Basic)".
If a Thin Provisioning Pool has not been created, the Thin Provisioning Pool configuration is automatically
determined based on the type of drives and the number of drives installed in the ETERNUS AF.
The priority for selecting drive types is as follows.
•
SSD > SSD SED
If multiple drive types exist, the drive type with the highest priority is selected to create a Thin Provisioning
Pool.
To create another Thin Provisioning Pool with the unselected drive types, this wizard cannot be used. Use
the dedicated function provided by this storage system to create a Thin Provisioning Pool.
A Thin Provisioning Pool is configured with RAID groups whose RAID level is RAID5 and the number of drives
•
is 5 to 48.
A Global Hot Spare is registered for each Thin Provisioning Pool.
•
The following shows an example of creating a Thin Provisioning Pool using the Smart Setup Wizard.
●
For SSDs and SSD SEDs
RAID groups are created with RAID5, which has high storage efficiency.
Table 43 shows a guideline for the number of drives and user capacities when 1.92TB SSDs are installed and
Figure 78 shows an example RAID configuration.

Table 43 Guideline for the Number of Drives and User Capacities (When 1.92TB SSDs Are Installed)

Number of in-
stalled drives
4 or less
5
6
7
8
9
10
11
12
13
RAID configuration that is to be
created
Capacity of the
user data area
RAID group (equivalent
number of
drives)
RAID groups -
cannot be cre-
ated
RAID5 ´ 1
3
RAID5 ´ 1
4
RAID5 ´ 1 4
RAID5 ´ 1
6
RAID5 ´ 1
7
RAID5 ´ 1 8
RAID5 ´ 2
8
RAID5 ´ 2
8
RAID5 ´ 3
9
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
Hot spare Unused drive
- -
1 0
1 0
1 1
1 0
1 0
1 0
1 0
1 1
1 0
124
User capacity
Per storage sys-
Per RAID group
tem
- -
Approx. 5.2TB Approx. 5.2TB
Approx. 6.9TB Approx. 6.9TB
Approx. 6.9TB Approx. 6.9TB
Approx. 10.4TB Approx. 10.4TB
Approx. 12.2TB Approx. 12.2TB
Approx. 13.9TB Approx. 13.9TB
Approx. 6.9TB Approx. 13.9TB
Approx. 6.9TB Approx. 13.9TB
Approx. 5.2TB Approx. 15.7TB
P3AG-1822-09ENZ0