Sun Microsystems StorEdge 6920 System, Руководство по началу работы

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62 Sun StorEdge 6920 System Getting Started Guide • May 2004
virtual disks instead of physical disk partitions, you can reconfigure disk storage
while the system is active (online). You do not need to stop storage input and output
(I/O) activity, shut down the system, or back up and restore data.
Storage Pool Provisioning Considerations
In the default configuration, there is one storage domain (DEFAULT) and one
storage pool (Default), which uses a default storage profile. The Default storage pool
contains all virtual disks in the system. If you do not want to use the Default storage
pool, you can create a new storage pool.
There are two options to choose between when configuring storage pools:
■
Use the existing default configuration (as is)
■
Create a new storage pool
For more information about storage pools, go to the online help system by clicking
the Help button. Click the Search tab and type
storage pools.
What Is a Virtual Disk?
A virtual disk a collection of disks or a set of contiguous disk blocks that are
grouped according to RAID levels. The maximum number of virtual disks per
storage tray is two.
Virtual disks are partitioned into volumes and appear to applications, databases, and
file systems as physical disks. Therefore, you can allocate storage on virtual disks the
same way you allocate storage on other disk devices.
Virtual Disk Provisioning Considerations
In the default configuration, all virtual disks are available to be added to either the
Default storage pool or a custom-created pool.
When configuring storage pools, you can:
■
Use the existing default configuration (as is)
■
Move the default RAID-5 virtual disks to a new pool
■
Delete the RAID-5 virtual disk and create a different virtual disk in a new pool
For more information about virtual disks and RAID levels, go to the online help
system by clicking the Help button. Click the Search tab and type
virtual disks.