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本帖最后由 hp-ux民工 于 2011-08-05 16:56 编辑
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 ...
mike79 发表于 2011-08-05 15:04 ![]()
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 |
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