HP XP Array Manager Software - Manual (Page 9)

Table 1 is an example of access attributes in the window. This example shows the access attributes
of the volumes 00, 01, and 02.
Table 1 Access Attributes Displayed in the Window
Mode Paths
Retention
Term
Reserved S-VOL Capacity Emulation Attribute LDEV
- 0 - - Enable 58.59 GB OPEN-V Read/Write 00
- 0 2190 days - Disable 58.59 GB OPEN-V Read Only 01
Inv 0 0 days - Disable 58.59 GB OPEN-V Protect 02
In Table 1 , for example, you cannot change the access attribute of volume #01 to Read/Write in the
next 2,190 days because the retention term for this volume is 2,190 days. If you need to change the
access attribute of this volume to Read/Write, you must ask your HP service representative to do so.
Expiration Lock Function
You will be able to change the access attribute of a volume from Read Only to Read/Write or from
Protect to Read/Write when the retention term ends. Retention Term displays 0 days when the retention
term is over. In
Table 1 , for example, you can change the access attribute of volume #02 to Read/Write
because the retention term is over. However, if you enable expiration lock in the Data Retention
window, attempts to change Read Only volumes or Protect volumes to Read/Write volumes will fail
even when the retention term is over. Expiration lock is disabled when you start Data Retention Utility
for the first time. To enable expiration lock, see
Prohibiting Changes to Read/Write Even When the
Retention Term is Over (Enabling/Disabling the Expiration Lock Function) on page 22.
S-VOL Disable Function
When storage system copy software copies data, the data on the copy destination volume (also known
as the secondary volume) will be overwritten. If a volume containing important data is specified as a
secondary volume by mistake, storage system copy software can overwrite important data on the
volume and you could suffer loss of important data. Data Retention Utility enables you to avoid such
loss of data.
If you assign the S-VOL Disable attribute to a volume, storage system copy software will be unable to
copy data to that volume. Also, if you assign the Read Only attribute or Protect attribute to a volume
as an access attribute, any other write operations will be prohibited on that volume. For example,
business application software will be unable to write data to such a volume.
To prohibit storage system copy software from copying data to a volume, but do not want to prohibit
other write operations to the same volume, you must ensure that the volume has the Read/Write
attribute. Also, you must assign the S-VOL Disable attribute to that volume to prevent storage system
copy software from copying data to the volume. For detailed information about how to do this, see
Protecting Logical Volumes Against Storage System Copy Operations (Setting the S-VOL Disable
Function)
on page 22.
Notes:
• Storage system copy software refers to HP StorageWorks XP XP Continuous Access Software, HP
StorageWorks XP XP Continuous Access Journal Software, HP StorageWorks XP XP Business Copy
Software, and HP StorageWorks XP Snapshot Software.
XP24000/XP20000 Data Retention Utility User Guide 9