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Chapter 1 - Getting Started
Spin-Up Settings
9
Spin-Up Settings
Switches 7 and 8 control the drive spin-up functions. The switches are directly
attached to all of the drive slot start signals. Switch 7 controls the “Start_1” signal
(Delay Spin-up) and switch 8 controls the “Start_2” signal (Remote Spin-up).
The table below describes the functional mode for each switch.
Disk I/O Card
The Disk I/O card provides drive channel expansion to the daisy chain NexStor
4000F enclosures. This card has circuitry which act as an active hub and provides
automatic loop regeneration (LRC) and port bypass. This loop regeneration will
“heal” the FC-AL (Fibre Channel-Arbitrated Loop) when components become
disconnected or faulty.
There are two Disk I/O cards installed at the rear of the enclosure adjacent to the
cooling fan bay. The upper Disk I/O card connects to the “Loop A” side of the
disk drives, and the lower Disk I/O card provides the connection to the “Loop B”
side of the disk drives.
Each Disk I/O card supports Small Form-Factor Pluggable (SFP) cages to accept
either optical or copper transceivers. They are designed to support NCITS T11
Fibre Channel compliant devices at speeds of 1.0625 Gb per sec or 2.125 Gb per
second. The speed is set through a hardware jumper (JP4) located on the Disk
I/O card. Setting the jumper on both pins will enable the 1 Gb/sec mode,
likewise offsetting the jumper will enable the 2 Gb/sec mode. An LED on the
card will illuminate to indicate the 2 Gb mode.
“DL” Switch 7
“RM” Switch 8
Drive Spin-up Mode
Down (0)*
Down (0)*
Drive motor spins up at DC power on.
Down (0)
Up (1)
Drive motor spins up only on SCSI “start”
commands.
Up (1)
Down (0)
Drive motor spins up after a delay of 12
(may vary depending on drive type) seconds
times the numeric ID setting of the
associated drive.
Up (1)
Up (1)
Drive motor will not spin-up.
* Default setting for proper operation.
4200F.book Page 9 Thursday, January 23, 2003 2:47 PM
Содержание NexStor 4200F Series
Страница 2: ...4200F book Page 2 Thursday January 23 2003 2 47 PM...
Страница 8: ...Table of Contents iv 4200F book Page iv Thursday January 23 2003 2 47 PM...
Страница 12: ...About this Manual Features viii 4200F book Page viii Thursday January 23 2003 2 47 PM...
Страница 32: ...Chapter 1 Getting Started Audible Alarm 20 4200F book Page 20 Thursday January 23 2003 2 47 PM...
Страница 156: ...Chapter 6 Maintenance Replacing the Enclosure 144 4200F book Page 144 Thursday January 23 2003 2 47 PM...
Страница 160: ...Appendix A Technical Information Specifications 148 4200F book Page 148 Thursday January 23 2003 2 47 PM...
Страница 172: ...Index 160 4200F book Page 160 Thursday January 23 2003 2 47 PM...
Страница 173: ...4200F book Page 161 Thursday January 23 2003 2 47 PM...