Array Performance Features; Fault Tolerance - Fujitsu Siemens Computers MegaRAID 320 User Manual

3.3.2

Array Performance Features

Table 3.7
Table 3.7

Array Performance Features

Specification
PCI Host Data
Transfer Rate
Drive Data Transfer
Rate
Maximum
Scatter/Gathers
Maximum Size of I/O
Requests
Maximum Queue
Tags per Drive
Stripe Sizes
Maximum Number of
Concurrent
Commands
Support for Multiple
Initiators
3.3.3

Fault Tolerance

Table 3.8
Table 3.8 MegaRAID 320 Fault Tolerance Features
Specification
1
Support for SMART
Optional Battery
Backup for Cache
Memory
Technical Specifications
Copyright © 2003 by LSI Logic Corporation. All rights reserved.
shows the MegaRAID 320 array performance features:
MegaRAID MegaRAID
320-1
533 Mbytes/s 800 Mbytes/s
320 Mbytes/s 320 Mbytes/s
26 elements 26 elements
6.4 Mbytes in 6.4 Mbytes in
64 Kbyte stripes 64 Kbyte stripes
As many as the As many as the
drive can accept drive can accept
2, 4, 8, 16, 32, 2, 4, 8, 16, 32,
64, or 128 Kbyte 64, or 128 Kbyte
255 255
Yes Yes
shows the MegaRAID 320 fault tolerance features:
MegaRAID
320-1
Yes Yes
Yes. Up to 72 Yes. Up to 72
hours data hours data
retention. retention.
MegaRAID
320-2 320-2X
1064 Mbytes/s
320 Mbytes/s
26 elements
6.4 Mbytes in
64 Kbyte stripes
As many as the
drive can accept
2, 4, 8, 16, 32,
64, or 128 Kbyte
255
Yes
MegaRAID MegaRAID
320-2 320-2X
Yes
Yes. Up to 72
hours data
retention.
MegaRAID
320-4X
1064 Mbytes/s
320 Mbytes/s
26 elements
6.4 Mbytes in
64 Kbyte stripes
As many as the
drive can accept
2, 4, 8, 16, 32,
64, or 128 Kbyte
255
Yes
MegaRAID
320-4X
Yes
Yes. Up to 72
hours data
retention.
3-13