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<concept id="GUID-F3520C6E-1B3A-5CB2-95F8-AB430D4BA327" xml:lang="en"><title>How
to finalize a drive</title><shortdesc>This topic describes how to finalize a drive.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>


<p>Finalising a drive moves it to a consistent state, which enables the safe
removal of media or safe shut down of the device. There are two types of finalisation
defined by <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>TfinalizeDrvMode</apiname></xref>: </p>
<ul>
<li id="GUID-DA29B46D-4E2A-54B8-9D29-545830B1CB8F"><p> <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>EFinal_RO</apiname></xref> - <i>Hard</i> finalisation.
This flushes all caches and puts the volume into a consistent state. After
finalisation, the volume becomes read-only until remounted. All read operations
are accepted but all write operations fail. This mode is used: </p> <ul>
<li id="GUID-851E514E-8275-51A9-84AA-784AE7ED69C5"><p>in an eject media application
- this application is launched by the user in order to safely remove the media </p> </li>
<li id="GUID-FFCB8EDA-940C-5D4B-AB7E-EF23238A3898"><p>when the device is shut
down. </p> </li>
</ul> </li>
<li id="GUID-F0C8E51E-4188-53E9-BD33-694F703C5A4D"><p> <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>EFinal_RW</apiname></xref> - <i>soft</i> finalisation.
This flushes all caches and puts the volume into a consistent state, after
which all read and write operations are accepted but the first write access
after finalisation renders the volume no longer finalized. </p> <p>This mode
of finalisation can be used by an application to put the media into a consistent
state after a period of device inactivity. This minimizes the risk of media
corruption on its removal or sudden power loss. </p> </li>
</ul>
<p>finalize a drive by calling <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>RFs::finalizeDrive()</apiname></xref> with
the drive number and the type of finalisation mode required, <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>EFinal_RW</apiname></xref> or <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>EFinal_RO</apiname></xref>. The error code returned by <codeph>finalizeDrive()</codeph> should
be checked before proceeding as it is not possible to finalize the volume
if it is corrupt or has filesystem objects open on it (files, directories,
formats etc.). </p>
<p>During drive finalisation, data is written to the media that indicates
the drive is in a consistent state, after which no write operations are supposed
to take place on the specified volume. </p>
<p>From v9.4. the API <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>RFs::finalizeDrives()</apiname></xref> has
been changed so that it sends finalize drive requests to <i>all</i> the existing
drives in the system, not just the local and internal drives. </p>
<p>The user of <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita"><apiname>RFs</apiname></xref> APIs must have the <codeph>DiskAdmin</codeph>  <xref href="GUID-4BFEDD79-9502-526A-BA7B-97550A6F0601.dita">security capability</xref>. </p>
</conbody></concept>