Avago Technologies 3ware 9650SE-12ML (Channel) - Manual (Page 28)

Introducing the 3ware® SAS/SATA RAID Controller
16 3ware SAS/SATA RAID Software User Guide, Version 9.5.1
• 3ware CLI (Command Line Interface)
The 3ware CLI provides the functionality available in 3DM through a
Command Line Interface. You can view unit status and version
information and perform maintenance functions such as adding or
removing drives, and reconfiguring RAID units online. You can also use
it to remotely administer controllers in a system.
The 3ware CLI is described in 3ware SAS/SATA RAID Controller CLI
Guide and in the 3ware HTML Bookshelf.
Monitoring, Maintenance, and
Troubleshooting Features
Several 3ware RAID controller features aid in monitoring and
troubleshooting your drives.
• Drive Performance Monitoring (DPM). DPM is an advanced trouble-
shooting tool used to measure drive performance, and to help identify
when a specific drive is causing problems so that you can repair or replace
it. Commands are available through the 3ware CLI to enable and disable
DPM, and to see a range of different statistics. These statistics can be
useful to AMCC technical support to help you troubleshoot problems
with your RAID controller and units. For more information, see “Drive
Performance Monitoring” on page 253.
• SMART Monitoring (Self-Monitoring, Analysis and Reporting
Technology) automatically checks a disk drive's health every 24 hours
and reports potential problems. This allows you to take proactive steps to
prevent impending disk crashes. SMART data is checked on all disk
drives (array members, single disks, and hot spares). Monitoring of
SMART thresholds can be turned on and off in 3DM. See, “Selecting
Self-tests to be Performed” on page 178 This feature does not apply to
SAS drives. (For details, see “Viewing SMART Data About a Drive” on
page 157.)
• Staggered Spinup allows drives that support this feature to be powered-
up into the standby power management state to minimize in-rush current
at power-up and to allow the controller to sequence the spin-up of drives.
Both SATAII OOB and ATA spin-up methods are supported. The standby
power management state is persistent after power-down and power-up.
You can set the number of drives that will spin up at the same time, and
the time between staggers in 3BM (the 3ware BIOS Management utility).
This feature does not apply to drives that are attached to an expander. For
details, see “Enabling and Setting Up Staggered Spin-up” on page 95.