- 论坛徽章:
- 0
|
Integrated RAID (IR) is used where either storage capacity, redundancy, or both of a RAID configuration are required. Two components of IR are:
*
Integrated Mirror (IM)
*
Global Hot Spare
The EFI utilities drvcfg and cfggen enable offline configuration and maintenance of the IR functionality. See “The drvcfg Utility”, and “The cfggen Utility”.
The sasmgr command enables online configuration and maintenances of the IR functionality. See “The sasmgr Command Set”.
Integrated Mirror
The advantage of an IM is there is always a mirrored copy of the data. An IM provides data protection for the system boot volume to safeguard critical information such as the operating system on servers and high performance workstations. An IM supports two simultaneous mirrored volumes, making an array, providing fault-tolerant protection for critical data. Typically, one of these volumes is the boot volume. If a disk in an IM fails, the hot swap capability allows the volume to be easily restored by replacing the failed disk. The firmware then automatically re-mirrors to the replaced disk.
Global Hot Spare
Each SAS controller can have one global hot spare disk available to automatically replace a failed disk in the one or two IM volumes configured on the controller. The hot spare makes the IM array more fault-tolerant. Up to two IM volumes are supported per SAS controller plus the hot spare.
详细参见：http://docs.hp.com/en/J6369-90045/ch03s01.html
http://docs.hp.com/en/J6369-90045/ch03s02.html?btnNext=next%A0%BB |
|
免费注册
发表于 2007-08-27 13:43
