Seagate ST39175LW Guía para resolver problemas descargar pdf (Pagina 121)

Chapter 7, Extended Frozen Image Services (Array Integration Option) 107

Configuring Primary and Secondary Disks

LU-M

LU indicates the SCSI or fibre channel logical unit number of the disk, configured by

means of the array’s dedicated console (not from a NetBackup host). M is the numeric

mirror descriptor for cascading disks. A cascading disk has more than one mirror

(secondary) associated with a given primary.

Seq#

This is the unit serial number of the array.

LDEV#

Logical device number of the disk.

P/S

Indicates whether or not the disk is configured in a primary-secondary pair:

◆ P-VOL: the disk is the primary.

◆ S-VOL: the disk is the secondary.

◆ SMPL: the disk is not paired (associated) with any other disk.

Status

Shows the current state of each disk in the array:

◆ PAIR: the secondary disk in the pair is synchronized with the primary.

◆ PSUS: the pair is split (primary disk).

◆ SSUS: the pair is split (secondary disk).

◆ COPY: a synch or split is in progress. If synchronizing, the status changes to PAIR at

completion of the COPY; if splitting, the result is PSUS for primary disk, or SSUS for

secondary disk.

Note If a backup is attempted while a disk is split (PSUS, SSUS), the backup fails with a

status code 11. If a backup is attempted while a disk is in the COPY state, there are

two possible results: if the disks synchronize (shown as PAIR), the backup

proceeds; if the disks split (PSUS, SSUS), the backup fails with a status code 11.

Shows the percentage of the status that has completed.

P-LDEV#

The LDEV number of the “partner” disk in the pair.

Indicates whether the secondary is writable, as a result of being split from the primary.

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Seagate ST39175LW Guía para resolver problemas Pagina 121