Bosch Appliances DVAS instruction manual 8RAID MENU, 8.1Add Array, Configuring an Array, En

DVAS Instruction Manual RAID Menu EN 27

8RAID MENU

This page is used to create or alter settings related to the RAID array. To access the RAID page, click RAID, on the left-hand side of the main screen.

8.1Add Array

To create RAID arrays, from the Add Array tab, select the drive(s) to be used by clicking the appropriate check box(es). Arrays can only be built when there are at least three disks. Disks allocated as spares cannot be used without first being deleted.

Figure 28 Configuring an Array

Select RAID Level

Allows selection of the RAID level for the array. Currently, RAID 0, 4, and 5 are available. Most server applications will work best with RAID 5. RAID 4 is suitable for lots of sequential transactions, but is not the ideal choice for server environments. RAID 0 is for users who need speed, not redundancy.

Select Stripe Size

Stripe size for the array designates the amount of data written to a single disk, before moving on to the next. Sequential access benefits from a smaller stripe size, wheras random access benefits from a larger stripe size. Bosch DVRs require 64KB.

Click Create RAID Set to continue. The RAID set will start to build. Array construction can take several hours to complete. Monitor the progress via the Progress tab, by clicking Information, at the left-hand side of the page. Select the Progress tab to show an overview of all utilities running on the array.

Stages of Array Mapping:

•Array construct: Writes RAID stripes to disk.

•Array verify: Verifies that data can be read from each block of the array.

Depending on disk capacity, it can take up to six hours to create a RAID Set.

Bosch Security Systems 20 January 2004