AMCC 9550SX, 9500S, 9590SE, 9650SE manual Cx start mediascan

Chapter 2. CLI Syntax Reference

autodetect=onoff enables or disables automatic detection of drives on the controller’s ports for staggered spin-up.

disk=<p:-p>allspecifies one or many disks (that is, drives or ports). If a port is empty (no drive is inserted), this feature is disabled for that port and its port number is shown. The example below shows that autodetect has been set to off to initiate staggered spin-up during hot-swapping, where port 3 was empty and ports 5 and 6 had drives inserted.

Example:

//localhost>> /c0 set autodetect=off disk=3:5-6

Setting Auto-Detect on /c0 to [off] for port [3] and for disk [5,6]... Done

If “disk=all,” then all of the drives or ports for that controller are specified.

For example:

//localhost>> /c0 set autodetect=off disk=all

Setting Auto-Detect on /c2 to [off] for all disks/ports... Done.

Usage Scenario:

If you are hot-plugging a large number of drives at the same time and are concerned that you might overload the power supply, you might use this command as follows:

1Issue the command (set autodetect=off) to disable automatic detection of the ports for staggered spin-up.

2If the ports are not emply, pull the drives out of the specified ports.

3Insert (or replace) the drives at the ports specified.

4Issue the command (set autodetect=on) to enable auto detect of the ports with the newly inserted drives.

The preceding steps would spin up the newly inserted drives in a staggered manner. Please note that the command takes longer for ports that do not have drives inserted, since the controller allows time for the empty ports to respond.

/cx start mediascan

This command applies only to 7000/8000 controllers. For 9000 series controllers, use the verify command.

This command provides media scrubbing for validating the functionality of a disk, including bad block detection, remapping, and so forth. The command starts a media scan operation on the specified controller /cx.

58 3ware Serial ATA RAID Controller CLI Guide