Disk Array - Hitachi Compute Blade 2000 User Manual

Precautions for Safe Use
NOTICE
Backing up data
Always create backup copies of important data on a hard disk to auxiliary storage. If the hard
disk fails, all data stored on the disk will be lost.
Refer to [Chapter 1: Handling the System Equipment and Peripheral Equipment].

Disk array

You must not change a disk array during system operations. If you do, all data will be lost

from those disks due to change in the disk array.
Refer to [Chapter 5: Building Disk Arrays].
When enabling the write cache of the disk array, connect the system equipment to UPS.

When you use the equipment without connecting to the UPS, data can disappear and be
corrupted.
Refer to [Chapter 5: Virtual Drives; Building Disk Arrays for RAID 0, 1, 5, and 6; Building
Disk Arrays for RAID 10; Changing the Write Policy for Disk Arrays].
When a disk array is deleted, all data in those hard disks including the disk array

information will be lost. Backup your required data before deleting a disk array.
Refer to [Chapter 5: Deleting Disk Arrays].
When a disk array is initialized, all data in those hard disks including the disk array

information will be lost. Backup your required data before initializing a disk array.
Refer to [Chapter 5: Initializing Disk Arrays].
If you select [New Configuration], all data in those hard disks including the disk array

information will be lost. Backup your required data before selecting "New Configuration".
Refer to [Chapter 5: Building Disk Arrays for RAID 0, 1, 5, and 6; Building Disk Arrays for
RAID 10].
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