AMCC 3WARE 9590SE Betriebsanweisung PDF herunterladen (Seite 82)

Chapter 2. CLI Syntax Reference

76 3ware Serial ATA RAID Controller User Guide

noscan attribute instructs CLI not to notify the operating system of the

creation of the new unit. By default CLI will inform the operating system.

One application of this feature is to prevent the operating system from

creating block special devices such as /dev/sdb and /dev/sdc as some

implementations might create naming fragmentation and a moving target.

nocache attribute instructs CLI to disable the write cache on the migrated

unit. Enabling write cache increases write performance at the cost of potential

data loss in case of sudden power loss (unless a BBU or UPS is installed). By

default the cache is enabled. To avoid the possibility of data loss in the event

of a sudden power loss, it is recommended not to set nocache unless there is a

BBU (battery backup unit) or UPS (uninterruptible power supply) installed.

autoverify attribute enables the autoverify attribute on the unit that is to be

migrated. For more details on this feature, see “/cx/ux set autoverify=on|off”

on page 70.

Migration Process

In all cases of migration, the background migration process must be

completed before the newly sized unit is available for use. You can continue

using the original unit during this time. Once the migration is finished, a

reboot will be required if you are booted from the unit. For secondary storage,

depending on your operating system, you may need to first unmount the unit,

Table 12: Supported Stripe Sizes

Model R0 R1 R5 R6 R10 Spare R50 Single

7/8000 64 N/A 64 N/S 64 N/A N/S N/S

128 128

256 256

512 512

1024 1024

9000

a. Models 9500S, 9550SX, and 9590SE

16 N/A 16 N/S 16 N/A 16 N/S

64 64 N/S 64 64

256 256 N/S 256 256

9650SE

and

9690SA

16 N/A 16 16 N/A 16 N/S

64 64 64 64 64

256 256 256 256

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 109 110

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AMCC 3WARE 9590SE Betriebsanweisung Seite 82