Specifications

Escala Tower PL & S, E, T System Hardware
Chapter 3: External Storage and SAN Subsystems 55/116
9es3s1c3.doc
Rev 5.9
02/12/2003
4.8. Disks and SP for CX line
36GB (10K) 36GB (15K) 73GB (10K) 146GB (10K
Formatted capacity
(520 bytes/sector)
Raw Capacity
Usable Capacity
35.15 GB
8.6 TB
7.2 TB
32.9 GB
8.6 TB
6.7 TB
71.25 GB
17.5 TB
14.6 TB
135.7 GB
Form Factor 3.5" 3.5" 3.5" 3.5"
Height 1.0" 1.0" 1.0" 1.0"
Rotational Speed 10,000 rpm 15,000 rpm 10,000 rpm 10,000 rpm
Interface Fibre Channel Fibre Channel Fibre Channel Fibre Channel
Data Buffer 16 MB 8 MB 16 MB 32 MB
# of Segments Up to 16 Up to 16 Up to 16 Up to 16
Transfer Rates
Buffer to/from Media
SP to/from Buffer
26.7-40.2 MB/s
200 MB/s (max)
51-69 MB/s
200 MB/s (max)
26.7-40.2 MB/s
200 MB/s (max)
43 to 78 MB/s
200 MB/s (max)
Access Time
Average Seek 5.2 ms Read
6.0 ms Write
3.6 ms Read
4.2 ms Write
5.2 ms Read
6.0 ms Write
4.7 ms Read
5.3 ms Write
Rotational Latency 2.99 ms 2 ms 2.99 ms 2.99 ms
CX200 (mono or dual SP) limitation, versus CX400 & CX600 (dual SP) :
•
CX200 mono SP
•
1 direct link and 15 disks maximum
•
No possible link to a Switch
•
CX200 Dual SP
•
1 direct link and 30 disks maximum (+ internal Hub)
•
2 maximum links to a Switch
•
CX400 Dual SP
•
1 direct link and 60 disks maximum
•
4 maximum links to a Switch
•
CX600 Dual SP – Dual Channel
•
2 direct link and 150 disks maximum
•
4 maximum links to a Switch
•
CX600 Dual SP – Quad Channel
•
4 direct link and 150 disks maximum
•
8 maximum links to a Switch