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HP XP RAID Manager Software User Manual

Page 142

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142

HP StorageWorks Disk Array XP RAID Manager: User’s Guide

cyl (XP1024/XP12000 CA only)

Specifies that a

bitmap table is managed for cylinders on CA volumes.

trk (XP1024/XP12000 CA only)

Specifies that a bitmap

table is managed for tracks on CA volumes.

If cyl or trk are not specified, the default bitmap table
identified below is used.

If there is not enough shared memory to maintain track
level information, error EX_CMDRJE is returned.

dif (BC only)

Use at paircreate to cause the S-VOL

bitmap table (used to create a differential backup) to
designate all tracks changed since paircreate.

inc (BC only)

Use at paircreate to cause the S-VOL

bitmap table (used for incremental backup) to designate
all tracks changed since the last re-synchronization

grp [CTGID] (XP128/XP1024/XP12000 BC only)

Use

at paircreate to group specified pairs into a consistency
group, allowing a consistent split of multiple devices at
exactly the same point in time. This applies when doing
a split using the pairsplit -g command (except
-S

or -E option).


A CTGID (CT Group ID) is assigned automatically if
you do not specify the CTGID option in the command.
If CTGID is not specified and the maximum number of
CT groups already exist, an EX_ENOCTG error will
occur. Therefore, the CTGID option can forcible assign
a volume group to an existing CTGID.

RAID

CA Volumes

Default Bitmap table

XP1024

OPEN-3/9

Track

OPEN-E/L/M

Cylinder

Others

N/A

Cylinder