Dell 34XX, 38XX, 32XX, 36XX manual Action is purgeSnapImages, Medium

Models: 36XX 32XX 38XX 34XX

1 417
Download 417 pages 18.23 Kb
Page 188
Image 188

Parameter

Description

 

 

 

• The term repos

 

• A four-digit numerical identifier that you assign

 

to the repository virtual disk name

repositoryFullPolicy

Defines how snapshot image processing continues

 

if the snapshot image repository virtual disk is full.

 

You can choose to fail writes to the base virtual

 

disk (failBaseWrites) or delete (purge) the

 

snapshot images (purgeSnapImages). The default

 

action is purgeSnapImages.

rollBackPriority

Determines whether system resources should be

 

allocated to the rollback operation at the expense

 

of system performance. A value of high indicates

 

that the rollback operation is prioritized over all

 

other host I/O. A value of low indicates that the

 

rollback operation should be performed with

 

minimal impact to host I/O. The default value is

 

medium.

repositoryFullLimit

The percentage of repository capacity at which

 

you receive a warning that the snapshot image

 

repository virtual disk is nearing full. Use integer

 

values. For example, a value of 70 means 70

 

percent. The default value is 75.

autoDeleteLimit

The maximum number of snapshot images that

 

you want to automatically delete if you have

 

selected to purge the snapshot images for the

 

repository full policy. The default value is 32.

Notes

Each snapshot group user label must be unique. You can use any combination of alphanumeric characters, underscore (_), hyphen(-), and pound (#) for the user label. User labels can have a maximum of 30 characters.

To create a snapshot group, you must have an associated repository virtual disk in which you store the snapshot images. You can either use an existing repository virtual disk or create a new repository virtual disk. You can create the repository virtual disk when you create the snapshot group. A snapshot group repository virtual disk is an expandable virtual disk that is structured as a concatenated collection of up to 16 standard virtual disk entities. Initially, an expandable repository virtual disk has only a single element. The capacity of the expandable repository virtual disk is exactly that of the single element. You can increase the capacity of an expandable repository virtual disk by attaching additional standard virtual disks to it. The composite expandable repository virtual disk capacity then becomes the sum of the capacities of all of the concatenated standard virtual disks.

A snapshot group has a strict ordering of snapshot images based on the time that each snapshot image is created. A snapshot image that is created after another snapshot image is a successor relative to that

188

Page 188
Image 188
Dell 34XX, 38XX, 32XX, 36XX manual Action is purgeSnapImages, Medium