Write to control blocks function, Formatting a specific ldev, Formatting all ldevs in a parity group – HP XP P9500 Storage User Manual
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Description
Item
The Quick Format operation resumes when power is turned back on.
Storage system is powered off
and back on
Restrictions
•
Quick Format cannot be executed on external volumes, virtual volumes, system disks,
the journal volumes of Continuous Access Journal Z and quorum disks.
•
The volume migration feature or the QuickRestore feature cannot be applied to
volumes undergoing Quick Format. When you use RAID Manager to execute the
volume migration operation or the QuickRestore operation on volumes undergoing
Quick Format, EX_CMDRJE will be reported to RAID Manager. In this case, check
the volume status with Remote Web Console.
•
The prestaging feature of Cache Residency Z cannot be applied to volumes
undergoing Quick Format.
Write to Control Blocks function
The Write to Control Blocks function writes the mainframe system management area to an external
volume.
If the LDEV with the mainframe system emulation type is created in a formatted external volume, it
is recommended that Write to Control Blocks is set to the format type. If the Write to Control Blocks
is set to the format type, the format time is shortened as compared to using the Normal Format
setting.
Before using this function, make sure that the external volumes have been formatted by the external
storage system.
CAUTION:
When it is uncertain whether the external LDEV has been formatted by an external
storage system, select Normal Format to perform the format operation. If an option other than
Normal Format is selected, the host may not have access to the formatted external LDEV.
To format the following LDEVs, select Normal Format as the format type:
•
LDEV which was accessed by hosts
•
LDEV on which the Write to Control Blocks function was performed
Formatting a specific LDEV
This procedure performs Normal formatting on the volume.
1.
Select and block the LDEV to be formatted.
See
for blocking an internal volume. See the HP XP P9000
External Storage for Open and Mainframe Systems User Guide for blocking an external
volume.
2.
To open the Format LDEVs window, click More Actions, then Format LDEVs from one of these
tabs:
•
LDEVs tab, selected from the Logical Devices node of the Storage Systems tree.
•
Virtual Volumes tab, selected from a pool in the Pools node of the Storage Systems tree.
3.
In the Format LDEVs window, select the format type from the Format Type list, and then click
Finish.
4.
In the Confirm window, click Apply.
If Go to tasks window for status is checked, the Tasks window opens.
Formatting all LDEVs in a parity group
This procedure performs Normal formatting on the volume.
Formatting LDEVs
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