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PRIMEQUEST 2000 Series Design Guide
Copyright 2016-2017 FUJITSU LIMITED
3.3.2 Guidelines for Selecting Internal Storage
RAID Cards or HDDs/SAS-SSDs in DUs and SBs
Item
Installed in DUs
(shared between partitions)
Installed in DUs
(not shared between
partitions)
Installed in SBs
Supported models
All models
2400E2/E3, 2800E2/E3
Number of RAID cards
2
1
Up to 1
Number of HDDs
Up to 2 per RAID card
UP to 4
Up to 4
When a Reserved SB
switching occurs
Internal storage is automatically connected to the switched partition
Internal storage is isolated
(unavailable)
Intra-cabinet cluster
configuration
The number of partitions that are used (up
to 2) must be stopped at the same time
when maintenance is being performed
No partitions need to be stopped at the same time because
internal storage is not shared between the partitions
Connection
source
Shared
Not shared
IOU#0
DU#0
RAID#0
HDD #2/3
DU#0
RAID#0
HDD #0/1/2/3
IOU#1
DU#0
RAID#1
HDD #0/1
DU#0
RAID#1
HDD #0/1/2/3
IOU#2
DU#1
RAID#0
HDD #2/3
DU#1
RAID#0
HDD #0/1/2/3
IOU#3
DU#1
RAID#1
HDD #0/1
DU#1
RAID#1
HDD #0/1/2/3
DU
(LDU#1)
RAID
card
#0
HDD#2
HDD#3
RAID
card
#1
HDD#0
HDD#1
IOU #0 or 2
IOU #1 or 3
SB #m
SB #n
HDD#3
IOU #0 or 2
SB #m
HDD#2
HDD#1
HDD#0
DU
HDD#3
RAID
card #0
IOU #1 or 3
SB #n
HDD#2
HDD#1
HDD#0
RAID
card
#1
RAID
card #1
RAID
card
#0
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