Installation guide

Setting and Modifying Controller Options

4-24 GAM Client v3.00 and WSAM User’s Manual

• Auto Drive Sizing. Allows the software to set similar drive sizes

(e.g. 4.0 GB, 4.1 GB, 4.2 GB) to a common size automatically

without the need to edit the mylexdrv.siz file. This leads to smoother

operation by allowing drives of similar sizes to be treated as

identical size for hot spares, replacement drives, and within arrays. If

you disable this option, the software will read and use the current

contents of mylexdrv.siz.

• Change the default Rebuild Rate to less than or equal to 50.

A rate of 50 devotes the maximum allowable resources to a drive

rebuild or array expansion, allowing the Rebuild or Expand to proceed

at its fastest. Lowering the number devotes more resources to I/Os and

consequently slows the Rebuild or Expand Array process.

• Change the Cache Line Size for this controller (if enabled).

• Change any of the following Startup Parameters:

• Spin-up. Change if you do not want automatic drive spin-up. Other

choices are to spin up at power on, or to wait for a command and

then do an automatic drive spin-up.

• Devices Between Spins. Number of devices to spin up at one time.

A low number lessens the likelihood of a power drain.

• Initial Delay. Number of seconds between physical device start-ups.

• Sequential Delay. Number of seconds between consecutive device

spin-up cycles.

• Enable (by checking) or disable (by unchecking) the following

Clustering Parameter:

• Clustering. Under Windows 2000 or Windows NT 4.0, allows

redundancy among controllers in various servers. If a controller or

server fails, another controller can take over the disk drives and disk

arrays that were formerly handled by the failed controller. This

mechanism imparts a “fault tolerance” among controllers and

servers.

• Change the following Clustering Parameter:

• Controller Host ID. Change if you want to set this controller’s

target ID to something other than 7.

Click the OK button to accept the changes, or the Cancel button to discard

them.