1. 支持的raid类型有:
■ RAID 0
■ RAID 10 (RAID 1)
■ RAID 50 (RAID 5)
■ RAID Multi-parity (MP)
RAID MP is HP 3PAR Fast RAID 6 Technology
这个
2.这个问题在你创建vv的时候,你可以指定如:
◆ Port - Creates a virtual volume that can tolerate two port failures because its RAID sets
use chunklets from devices on different cage loops.
◆ Cage - Creates a virtual volume that can tolerate a drive cage failure because its RAID
sets use chunklets from different drive cages.1
◆ Magazine - Creates a virtual volume that can tolerate a drive magazine failure because
its RAID sets use chunklets from different drive magazines
这点比eva要好得多,eva rss我们看不出来,需要rc用专门的工具来看
3.他不需要单独spare盘,只是Spare Chunklets,这点跟eva的概念有点类似,和xp就差了很多作者: hp-ux民工 时间: 2011-08-05 14:44
PS,俺只是民工,不是销售或者售前,屁沟决定脑袋,所以只是从技术角度去看待他。可能会有所片面。作者: mike79 时间: 2011-08-05 15:04
第二个问题我是想了解这个情况:
假设一块磁盘有上1000个chunklet,那能不能其中500个chunklet和其他某些磁盘的chunklet做若干个RAID5,其他500个chunklet和其他某些磁盘的chunklet做若干个RAID1或者RAID10?作者: hp-ux民工 时间: 2011-08-05 15:31 本帖最后由 hp-ux民工 于 2011-08-05 16:56 编辑
我直接贴原文吧
2.1.1 Physical Disks
A physical disk is a hard drive mounted on a drive magazine located in a 3PAR InServ Storage
Server drive cage. For more information about physical disks and the 3PAR InServ Storage
Server hardware platforms, see Chapter 13, 3PAR InServ Storage Server Hardware.
2.1.2 Chunklets
Physical disks are divided into chunklets. Each chunklet occupies 256 MB of contiguous space
on a physical disk. Chunklets are automatically created by the 3PAR InForm® Operating System
and they are used to create logical disks. A chunklet is assigned to only one logical disk. For
more information about chunklets, see Chapter 7, Chunklets.
2.1.3 Logical Disks
A logical disk is a collection of physical disk chunklets arranged as rows of RAID sets. Each RAID
set is made up of chunklets from different physical disks. Logical disks are pooled together in
Common Provisioning Groups (CPGs) which allocate space to virtual volumes. The underlying
logical disks are automatically created by the InForm OS when you create CPGs. The RAID type,
space allocation, growth increments and other logical disk parameters can be set when you
create a CPG or modified later. 3PAR storage servers support the following RAID types:
■ RAID 0
■ RAID 10 (RAID 1)
■ RAID 50 (RAID 5)
■ RAID Multi-Parity (MP) or RAID 6
For a detailed discussion of logical disks and RAID types, see Chapter 8, Logical Disks.
drive cage是指盘笼,DC2 drive cage,每个 drive cage有40 physical disks ,10个drive magazines,每个drive magazines装4个硬盘,根据以上3个选项
可以自己选项来保证某个drive magazines更换,也不会影响vv,甚至某个drive cage挂掉也能够保证数据的安全性,这个问题我想我们不用杞人忧天,每个存储都会考虑到数据的安全性的作者: hp-ux民工 时间: 2011-08-05 17:20
我更换故障硬盘时,会发生什么?
IBM资料原文:
Front load 12-drive drawers which can be extended while drives remain active allowing
Superior serviceability and easy installation or replacement of individual drives without affecting the operation of other drives.
Note: Thin-provisioned volumes require additional I/O operation to read and write
metadata to the internal disks or to the back-end storage, which adds additional load to the
IBM Storwize V7000 nodes. We therefore do not recommend the use of these volumes for
high performance applications, or any workload with a high write I/O component. 作者: beggeb 时间: 2011-12-27 14:22 回复 11# hp-ux民工