Specifications

Escala Tower PL & S, E, T System Hardware
Chapter 3: External Storage and SAN Subsystems 31/116
9es3s1c3.doc
Rev 5.9
02/12/2003
2.4.2. Configurability and Packaging
basic configuration
1 SP
high availability configuration
2 SP
base cabinet 1 DPE + 1 DAE within a 20 slots cabinet 1 DPE + 1 DAE within a 20 slots cabinet
additional DAEs
30 slots cabinet 0..1 sin
g
le LCC/PS DAEs 0..1 dual LCC/PS DAEs
10 slots cabinet with initial orderin
g
0..2 sin
g
le LCC/PS DAEs 0..2 dual LCC/PS DAEs
10 slots cabinet with add-ons 0..4 sin
g
le LCC/PS DAEs 0..4 dual LCC/PS DAEs
minimum number of disks in the base
cabinet
7
(
1 DPE + 1 DAE
)
13
(
1 DPE + 1 DAE
)
minimum number of disks per
additional DAE
2 for 10 slots cabinet
6 for 30 slots cabinet
4 for 10 slots cabinet
12 for 30 slots cabinet
maximum number of disks 60 60
memory (MB) 256, 512, 1024 256, 512, 1024
same value on both SPs
write cache not su
pp
orted
y
es
p
ower su
pp
l
y
1 PS - No dual PS o
p
tion 2
SPS 0 1
second SPS o
p
tional for hi
g
her availabilit
y
ATF not a
pp
licable
y
es
For more information, refer to "2.1. Common Features of the DAS4500/5300/5700 and DAE 5000
Series" earlier in this chapter.
2.4.3. SAN Features
One or multiple servers can be connected to a DAS4500, using the connectors of the SP (two
connectors per SP). The host interface provides SC connectors, with short Wave Length laser for
multimode fibers. External hubs or switches can be used to increase connectivity. Several DAS4500
can be connected to a single HBA on a server using external hubs or switches.
2.5. DAS5700 (Full Fibre RAID Disk Subsystems)
Discontinued as of 31/03/2001.
All addons discontinued as of 31/12/2002.
2.5.1. Highlights
The DAS5700 was the high-end model of the 5000 Series. It is a highly flexible disk subsystem, with
high performance levels, up to 60 disk slots and 18 / 36 / 72 GB disks. Higher capacities (up to 100
disks) can be proposed in SFR.
The DAS5700 is based on DPE and DAE enclosures. The Fibre Channel technology used for the host
connection brings an optimal cabling flexibility, and high transfer rates (up to 120 MB/s with dual SP).
With the DPE design, optimized for OLTP and RAID 5 processing, and the high number of disk, it is
able to sustain a very high IO rate, supporting heavy transactional applications.