Frequently Asked Questions - Promise Technology VTRAK J300s Quick Start Manual

Frequently Asked Questions

What kind of disk drives can I use with J300s?
The J300s supports 3.5-inch Serial Attached SCSI (SAS) disk drives.
How can I tell when the J300s unit has fully booted?
When the J300s unit is fully booted up, the Power and FRU LEDs will light
up green. If a disk array is present, the Logical Drive LED will light up green
also. The heartbeat LED blinks green once every 3 seconds if one I/O
module is installed, or twice every 3 seconds if two I/O modules are installed.
What happens if a disk drive fails?
The LEDs on the disk carrier for the failed drive will turn red or go off. See
page 11. Also, if you run the enclosure command in the CLI, the failed drive
will not appear in the SAS address list. See page 12. In addition, the
behavior of the disk drive could be affected by the SAS HBA card in the Host
PC.
Can I hot-swap a failed drive with a new one?
Yes. Disk drives are hot-swappable on the J300s unit.
Can the J300s run using just one power supply?
Yes, it is possible to run J300s unit on a single power supply. Most J300s
units ship with two power supplies. On those units, the J300s unit will
continue running if one of the power supply fails. But deliberately leaving one
power supply off negates this advantage.
In addition, leaving one power supply off reduces air flow through the J300s
unit and can contribute to overheating. Always switch on both power
supplies if your J300s unit has two.
J300s units that ship with a single power supply have an auxiliary cooling
unit installed in the place of the second power supply to provide a
comparable level of air circulation inside the enclosure.
13
Frequently Asked Questions