Dot Hill Systems II 200 FC User Manual

Page 27

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Chapter 1 Product and Architecture Overview

1-7

Table 1-2 shows the configuration options for SANnet II 200 FC, SATA, and SATA SE
arrays.

A label on the bottom lip of an array chassis, underneath the front bezel, indicates
whether the array is a JBOD array or a RAID array. For instance, “SANnet II 200 AC
JBOD” refers to an alternating-current version of a SANnet II 200 JBOD array,
“SANnet II 200 DC JBOD” refers to a direct-current version of a JBOD array, and
“SANnet II 200 AC RAID” refers to an alternating-current version of a RAID array.
Similarly, using a OBP command such as

probe-scsi-all

provides similar

information, using an “A” designator for RAID arrays and a “D” designator for disks

Table 1-2 SANnet II 200 FC, SATA, and SATA SE Array Configuration Options

Internal RAID controllers

1 or 2

2-Gbit/sec Fibre Channel disks
(SANnet II 200 FC array)

1

1.5-Gbit/sec serial ATA disks
(SANnet II 200 SATA array)

1. 1-GHz drives are not supported.

Up to 12 per array or per expansion unit, with a
minimum of 4 plus 1 spare

FC expansion units

2

2. A disk array with no controller. Each expansion unit has two Fibre Channel loops that can provide redundant data paths

back to the RAID array.

Up to 8 for a SANnet II 200 FC array. Up to 5 for a
SANnet II 200 SATA array

FC JBOD arrays

3

(SANnet II

200 FC array only)

3. A disk array with no controller that is connected directly to a host computer, with no RAID array in the loop. Only SANnet

II 200 FC arrays support the JBOD configuration.

1

Connection options

• Serial port
• Ethernet
• Fibre Channel Small Form-Factor Pluggable

(SFP)

Supported RAID levels

0, 1, 3, 5, 1+0, 3+0, and 5+0

Redundant field-replaceable
units (FRUs)

• Power supply and fan modules
• I/O controller modules and I/O expansion

modules

• I/O expansion modules
• Battery board module
• Disk drive modules

Configuration management
and enclosure event reporting
options

4

4. The host-based SANscape software provides a graphical user interface (GUI) and additional event-reporting capabilities.

• In-band Fibre Channel ports
• Out-of-band 10/100BASE-T Ethernet port
• RS-232 connectivity
• Enclosure monitoring by SCSI Enclosure Services

(SES)

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