Sun Microsystems Netra X4200 M2, Руководство по обслуживанию

Страница: 212 / 222

196 Netra X4200 M2 Server Service Manual • May 2007
4. Move the cursor to the RAID Disk column. To add a disk to the volume,
change the “No” to “Yes” by pressing the + key, - key, or space bar.
As disks are added, the Array Size field changes to reflect the size of the new
volume. There are several limitations when creating a RAID 0 volume:
■
All disks must be SAS (with SMART support).
■
Disks must have 512-byte blocks and must not have removable media.
■
There must be at least two drives in a valid volume.
■
No more than eight drives are allowed in a volume.
■
Hot spare drives are not allowed for RAID 0 volumes.
Note – RAID 0 does not provide any data protection in the event of disk failure. It
is primarily used to increase speed.
Note – Once the number of disks in a RAID volume is set, it cannot be changed.
5. When the volume has been fully configured, press C and select Save Changes,
then exit this menu to commit the changes.
The Configuration Utility will pause while the array is being created.
Creating a RAID 1 Volume
A RAID 1 volume, also referred to as Integrated Mirroring (IM), offers the ability to
mirror data from one hard disk onto another one. This can increase reliability by
combining multiple disks into one logical volume. Follow these steps to create a
RAID 1 volume on an adapter that does not currently have a volume configured.
1. In the Configuration Utility, select an adapter from the Adapter List screen.
2. Select the RAID Properties option.
3. When you are prompted to create either an IS volume or an IM volume, select
Create IM Volume.
The next screen shows a list of disks that can be added to a volume.
4. Move the cursor to the RAID Disk column. To add a disk to the volume,
change the “No” to “Yes” by pressing the + key, - key, or space bar.
When the first disk is added, the utility will prompt you to keep existing data or
overwrite existing data.