114 SPARC Enterprise Mx000 Servers Product Notes for XCP Version 1121 • February 2016
Notes on Hardware RAID
Notes on Using the Hardware RAID
■ Make backup copies of important data and programs periodically. In some
failures, rebuild of hardware RAID and the data restore from the backup media
might become necessary.
■ To ensure data integrity in time of power failure, it is recommended to use an
uninterruptible power supply (UPS).
■ If you require higher availability such as the controller or the data path
redundancy, use the dedicated RAID system.
Notes on Building or Deleting the Hardware RAID
■ The data in the disk drive is not secured during the build or the deletion of a
hardware RAID. When you build a new hardware RAID while the system is
running, or delete the hardware RAID, ensure to make backup copies of the data.
After building a hardware RAID, you need to install data or restore data from the
backup media.
■ With no load, the hardware RAID build or the synchronization associated with
maintenance takes about 180 minutes for a 300 GB disk drive. It takes about 360
minutes for a 600 GB disk drive.
■ If there is a system restart during the hardware RAID build or synchronization,
the build/synchronization must be started again from the beginning.
■ When the hardware RAID applied, the volume size is smaller than the size of
original disk.
Notes on Operating the Hardware RAID
In some cases, RAID controller cannot conclude the disk drive is completely in
failure, and system slowdown might occur. To do maintenance in this status, follow
the procedures below.
1. Delete the hardware RAID.
2. Replace all the member disks related to the hardware RAID.
3. Rebuild the hardware RAID.
4. Restore the data from the backup media.
To Next Page
Loading...
