Bull Escala EPC1200, Connecting Manual, Page: 148 / 224

10-38
EPC Connecting Guide
The following table describes the intended uses of the different configurations.
Diagram
number
Nb of
loops
Nb of
nodes
Nb of
adapters
per node
HACMP
on each
node
ATF on
each
node
Nb of
DAS
Nb of
SPs per
DAS
Nb of
hubs
Notes
SLOOP00
1 1 1 or 2 No No 1 or 2 0 0 4.
SLOOP01 1 1 1 No No 1 1 or 2
linked
0 or 1 3.
SLOOP02
1 2 1 No No 1 1 0 –
SLOOP03 1 N>1 1 No No D>1 1 or 2
linked
1 1.
SLOOP04 2 2 2 Yes No 2 0 2 4.
DLOOP01 2 1 2 No Yes 1 2
(1/loop)
0 –
DLOOP02 2 2 2 Yes Yes 1 2
(1/loop)
0 –
DLOOP03
2 N 2 Yes Yes D 2
(1/loop)
2 1.
DLOOP04 2 2 1 Yes(split)
or No
No 1 2
(1/loop)
0 –
XLOOP01 1 1 1
or 2
No No
Yes
1 1 or 2
(1/loop)
0 2.
XLOOP02
2 2 2 Yes Yes 2 2
(1/loop)
2 2.
XLOOP02 2 2 2 Yes Yes 2 2 4 2.
DSWITCH
01
2 2 2 Yes Yes 2 2 2Swit
chs
2.
Figure 93.DAS Fibre Channel – Table of Examples of Use.
In every case, there must be at most 6 DAS (SP) and 4 Nodes (adapter) on a same FC–AL
loop.
Notes:
1. 1 < N + D < 10
2. deport of DAS (mirror) for disaster recovery.
3. A hub is necessary for a dual-SP DAS 57xx (linked SPs)
4. Use of the DAE JBOD
ATF is supported for configurations with Dual-SP DAS and dual attachment (dual loop) per
node.
DAS Full Fibre Channel Models
The DAS 57xx model family comprises:
1. DAS 5700 model with a RAID subsystem, including:
•
Either a single-SP DPE or a dual-SP DPE disk drawer
•
One or more chained DAE disk drawers (1 up to 5 in an EPC1200 or EPC1200A or
EPC2400 I/O rack and up to 6 in an EPC400/430 rack or in a rack containing EPC440
drawer)
•
One power supply per SP and as many additional power supplies as chained DAE
drawers