---
title: PERSISTENT_RESERVE_IN
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsireducedblockcommandsdevice/1473376-persistent_reserve_in
---

# PERSISTENT_RESERVE_IN

## Declaration

```occ
virtual bool PERSISTENT_RESERVE_IN(SCSITaskIdentifier request, IOMemoryDescriptor *dataBuffer, SCSICmdField5Bit SERVICE_ACTION, SCSICmdField2Byte ALLOCATION_LENGTH);
```