Creating A Virtual Drive Using Simple Configuration - Lenovo ThinkServer RD240 Software User's Manual

8.1.2

Creating a Virtual Drive Using Simple Configuration

8-4
◊
Direct IO: (the default) In this mode, reads are not buffered
in cache memory. Data is transferred to the cache and the
host concurrently. If the same data block is read again, it
comes from cache memory.
Cached IO provides faster processing, and Direct IO ensures
that the cache and the host contain the same data.
•
Access policy: Select the type of data access that is allowed for this
virtual drive.
◊
Read/Write: (the default) Allow read/write access. This is the
default.
◊
Read Only: Allow read-only access.
◊
Blocked: Do not allow access.
•
Disk cache policy: Select a cache setting for this drive:
◊
Enable: Enable the disk cache.
◊
Disable: Disable the disk cache.
◊
Unchanged: (the default) Leave the current disk cache policy
unchanged.
Simple configuration is the quickest and easiest way to create a new
storage configuration. When you select simple configuration mode, the
system creates the best configuration possible using the available drives.
Note: You cannot created spanned drives using the simple
configuration procedure. To create spanned drives, use the
advanced configuration procedure described in
Section 8.1.3, "Creating a Virtual Drive Using Advanced
Configuration".
Follow these steps to create a new storage configuration in simple
configuration mode.
1. Perform either of the following steps:
– Right-click the controller node in the device tree in the left frame
of the MegaRAID Storage Manager window and select Create
Virtual Drive
Configuration