AMCC 3WARE 9590SE Guía de usuario descargar pdf (Pagina 80)

Chapter 2. CLI Syntax Reference

74 3ware Serial ATA RAID Controller User Guide

The destination unit must use all source disks and potentially augment the

number of disks in the disk=p:-p disk list. Unspecified parameters are

assigned the default values (stripe size of 64K, write cache enabled,

autoverify disabled, and ignoreECC disabled). Both source name and serial

number will be carried over to the destination unit.

A special case of this command is when the source unit has a type of RAID1

and destination unit has a type of single. In this case, the migrate command

splits both drives into two identical single disks. The disk name will be

duplicated on the destination units, but the source unit serial number will not

be carried over to the new unit. The new destination unit will have its own

serial number.

type=RaidType specifies the RAID type of the destination unit. Possible unit

types include raid0, raid1, raid5, raid6, raid10, raid50, or single.

For example, type=raid5 indicates the destination unit is RAID-5. The

type=single is a special case of the migrate command. It splits the source unit

RAID-1 or TWINSTOR into multiple Single units.

The following table illustrates valid migration paths:

Note: You can only migrate a unit to a RAID level that has the same or more

capacity as the existing one. A four-drive RAID 5 unit can migrate to a four-drive

RAID 0, but a four-drive RAID 0 unit cannot migrate to a four-drive RAID 5, without

adding another drive, due to the need for additional storage capacity for parity bits.

Table 11: Valid Migration Paths

Destination

Source R0 R1 R5 R6 R10 R50 Single Spare

Yes No Yes Yes Yes Yes No No

Yes No Yes Yes Yes Yes Yes No

Yes No Yes Yes Yes Yes No No

R10

Yes No Yes Yes Yes Yes No No

R50

Yes No Yes Yes Yes Yes No No

Single

Yes Yes Yes Yes Yes Yes No No

Spare

No No No No No No No No

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 109 110

Sin comentarios

AMCC 3WARE 9590SE Guía de usuario Pagina 80