1.1.1

Table Of Contents
File Names
File names have three parts.
First Part of File Name: Usage Identier
ExamplesUsageUsage Identifier Values
OVERFLOWoverowDS1_1.crfOplog data from overow tables and queues
only.
OVERFLOW
BACKUPoverowDS1.if,
BACKUPSQLF-DEFAULT-DISKSTORE.if
Oplog data from persistent and
persistent+overow tables and queues.
BACKUP
DRLK_IFoverowDS1.lk,
DRLK_IFSQLF-DEFAULT-DISKSTORE.lk
Access control - locking the disk store.DRLK_IF
Second Part of File Name: Disk Store Name
ExamplesUsageDisk Store Name Values
name="OVERFLOWDS1"
DRLK_IFOVERFLOWDS1.lk,
Non-default disk stores.<disk store name>
name="PERSISTDS1"
BACKUPPERSISTDS1_1.crf
Note: SQLFire internally converts
and uses disk store names in upper
case characters, even if you specify
lower case characters in the DDL
statement.
DRLK_IFSQLF-DEFAULT-DISKSTORE.lk,
BACKUPSQLF-DEFAULT-DISKSTORE_1.crf
Default disk store name, used when
persistence or overow are specied on a
table or queue but no disk store is named.
SQLF-DEFAULT-DISKSTORE
BACKUPSQLF-DD-DISKSTORE_1.crfDefault disk store for persisting the data
dictionary.
SQLF-DD-DISKSTORE
Third Part of File Name: oplog Sequence Number
ExamplesUsageoplog Sequence Number
OVERFLOWoverowDS1_1.crf,
BACKUPpersistDS1_2.crf,
BACKUPpersistDS1_3.crf
Oplog data les only. Numbering starts with
1.
Sequence number in the format _n
File Extensions
NotesUsageFile Extension Values
Stored in the rst disk-dir listed for the store.
Negligible size - not considered in size
control.
Disk store metadataif
Stored in the rst disk-dir listed for the store.
Negligible size - not considered in size
control.
Disk store access controllk
vFabric SQLFire User's Guide82
Managing Your Data in vFabric SQLFire